/* ============================================================
   KETTA — sections.css  v2 (按 v5/v6/v4/v2 原型重做)
   ============================================================ */

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* ============================================================
   NAV - dino brand mark
   ============================================================ */
.nav-dino-mark {
  height: 52px; width: auto; display: block;
  object-fit: contain;
  transition: transform .25s var(--ease-out), opacity .25s;
  opacity: 0.92;
}
.nav-brand:hover .nav-dino-mark { transform: scale(1.04); opacity: 1; }
.ketta-nav.scrolled .nav-dino-mark { opacity: 1; }
@media (max-width: 768px) {
  .nav-dino-mark { height: 44px; }
}

/* ============================================================
   S01 · HERO
   ============================================================ */
.s01 {
  background:
    radial-gradient(ellipse 90% 90% at 68% 52%,
      #fff3a0 0%,
      #FFC600 28%,
      #f0a200 55%,
      #c87200 80%,
      #a05a00 100%);
  display: flex; align-items: center;
  position: relative;
}
.s01 .pixel-canvas { display: none; }
.s01 .tech-grid    { display: none; }

/* --- S01 动态风景图层 --- */
.s01-scene {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
}
.s01-scene-img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 40%;
  animation: scenePush 28s ease-in-out infinite alternate;
  transform-origin: 58% 52%;
  will-change: transform;
}
@keyframes scenePush {
  0%   { transform: scale(1.00) translate(0,    0);    filter: brightness(1.00); }
  45%  { transform: scale(1.03) translate(-0.5%,  0.2%); filter: brightness(1.02); }
  100% { transform: scale(1.07) translate(-1.1%, 0.4%); filter: brightness(1.05); }
}

/* 水面波光：横向漂移的高光带 */
.s01-water-shimmer {
  position: absolute;
  top: 30%; left: 6%;
  width: 54%; height: 20%;
  background: linear-gradient(
    108deg,
    transparent 0%,
    rgba(190,228,255,0.10) 25%,
    rgba(220,245,255,0.26) 50%,
    rgba(190,228,255,0.10) 75%,
    transparent 100%
  );
  border-radius: 50%;
  mix-blend-mode: screen;
  animation: waterShimmer 5.5s ease-in-out infinite;
  pointer-events: none;
}
@keyframes waterShimmer {
  0%,100% { opacity: 0.35; transform: translateX(-5%) scaleX(0.90) skewX(-3deg); }
  50%     { opacity: 1;    transform: translateX(5%)  scaleX(1.10) skewX( 3deg); }
}

/* 蒙版：仅保留上下轻微融合，不遮左侧 */
.s01-scene-vignette {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    linear-gradient(180deg,
      rgba(255,198,0,0.55) 0%,
      transparent          18%
    ),
    linear-gradient(0deg,
      rgba(130,70,0,0.38) 0%,
      transparent          22%
    );
}

.s01-text {
  position: relative; z-index: 8;
  margin-left: var(--pad-x);
  max-width: 50%;
  animation: textFadeUp 1s var(--ease-out) both;
}
.s01-title {
  font-family: var(--font-cn);
  font-size: clamp(46px, 8vw, 100px);
  font-weight: 900;
  line-height: 0.92;
  letter-spacing: -0.04em;
  color: var(--c-black);
  white-space: nowrap;
  /* 银白光感描边：描边在文字下层，加多层柔光晕 */
  -webkit-text-stroke: 5px rgba(255,255,255,0.95);
  paint-order: stroke fill;
  text-shadow:
    0 0 18px rgba(255,255,255,0.75),
    0 0 40px rgba(210,225,255,0.40),
    0 2px 6px  rgba(255,255,255,0.55);
  background: transparent;
  border: none;
  outline: none;
}

.s01-en {
  font-family: var(--font-en);
  font-size: clamp(11px, 1.2vw, 14px);
  font-weight: 700;
  letter-spacing: 0.32em;
  color: rgba(17,17,17,0.5);
  margin: 16px 0 28px;
}

@media (max-width: 768px) {
  .s01-text  { max-width: 88%; padding-top: 60px; }
  .s01-title { font-size: clamp(40px, 12vw, 64px); }
}

/* ============================================================
   S02 · BRAND POSITION (v6 prototype direction)
   ============================================================ */
.s02 {
  position: relative;
  background: #000;
  color: #fff;
  display: flex; align-items: center;
  padding: 110px var(--pad-x) 90px;
  overflow: hidden;
}
.s02-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  z-index: 0;
  transform: scale(1.04);
}
.s02-overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(to bottom,
    rgba(0,0,0,0.04) 0%,
    rgba(0,0,0,0.18) 28%,
    rgba(0,0,0,0.62) 58%,
    rgba(0,0,0,0.92) 100%);
}
.s02-yellow-bar {
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 6px; background: var(--c-yellow);
  z-index: 4;
}
.s02-inner {
  position: relative; z-index: 5;
  width: 100%; max-width: var(--max-w); margin: 0 auto;
}
.s02-title {
  font-size: clamp(26px, 4.5vw, 60px);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.18;
  color: #fff;
  margin-bottom: 14px;
  max-width: 940px;
  text-shadow: 0 2px 14px rgba(0,0,0,0.35);
  animation: textFadeUp .9s var(--ease-out) both;
}
.s02-title .hl { color: var(--c-yellow); }
.s02-accent-line {
  height: 3px; background: var(--c-yellow);
  width: 0;
  margin-bottom: 14px;
  animation: lineGrow .7s var(--ease-out) .25s forwards;
}
@keyframes lineGrow { from { width: 0; } to { width: 64px; } }
.s02-sub {
  font-size: clamp(13px, 1.4vw, 16px);
  color: rgba(255,255,255,0.65);
  max-width: 560px;
  margin-bottom: 56px;
  line-height: 1.85;
}

/* stats row */
.s02-stats-row {
  display: flex;
  align-items: stretch;
  gap: 0;
  border-top: 0.5px solid rgba(255,255,255,0.18);
  padding-top: 28px;
  margin-bottom: 50px;
  flex-wrap: wrap;
  row-gap: 22px;
}
.s02-stat {
  flex: 1;
  min-width: 160px;
  padding-right: 28px;
  border-right: 0.5px solid rgba(255,255,255,0.15);
}
.s02-stat:last-of-type { padding-right: 28px; }
.s02-stat-num {
  font-family: var(--font-en);
  font-size: clamp(38px, 4.6vw, 64px);
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.04em;
  line-height: 1;
}
.s02-stat-num .u {
  font-size: 0.5em;
  font-weight: 700;
  color: var(--c-yellow);
  margin-left: 4px;
}
.s02-stat-num .big { color: var(--c-yellow); margin-left: 2px; }
.s02-stat-label {
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-top: 12px;
}
.s02-cert-zone {
  display: flex; flex-direction: column; gap: 12px;
  padding-left: 28px;
  border-left: 0.5px solid rgba(255,255,255,0.15);
  flex-shrink: 0;
}
.shield-badge {
  display: flex; align-items: center; gap: 12px;
  padding: 4px 2px;
  transition: opacity .2s;
}
.shield-badge:hover { opacity: 0.78; }
.cert-name {
  font-size: 12px; font-weight: 800;
  color: #fff;
  letter-spacing: 0.04em;
}
.cert-sub {
  font-size: 10px;
  color: rgba(255,255,255,0.45);
  margin-top: 3px;
  letter-spacing: 0.02em;
}

/* sales row */
.s02-sales-title {
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.32em; text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 16px;
}
.s02-sales-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.s02-sales-card {
  display: flex; flex-direction: column;
  background: rgba(255,255,255,0.04);
  border: 0.5px solid rgba(255,255,255,0.18);
  border-radius: 8px;
  overflow: hidden;
  transition: transform .3s var(--ease-out), border-color .3s, background .3s;
}
.s02-sales-card:hover {
  transform: translateY(-5px);
  border-color: rgba(255,198,0,0.65);
  background: rgba(255,198,0,0.04);
}
.s02-sales-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: #fff;
  padding: 8px;
}
.s02-sales-card span {
  display: block;
  padding: 12px 18px;
  font-family: var(--font-en);
  font-size: 12px; font-weight: 800;
  letter-spacing: 0.16em;
  color: var(--c-yellow);
}

@media (max-width: 768px) {
  .s02 { padding: 90px var(--pad-x) 80px; }
  .s02-stats-row { flex-direction: column; }
  .s02-stat { padding-right: 0; border-right: none; border-bottom: 0.5px solid rgba(255,255,255,0.1); padding-bottom: 18px; }
  .s02-cert-zone { padding-left: 0; border-left: none; padding-top: 18px; border-top: 0.5px solid rgba(255,255,255,0.1); }
  .s02-sales-row { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  /* ── 背景山景图完整呈现：比照 S01 contain 思路 ── */
  /* section 改为 flex 列布局，image 占顶部 4:3，content 在下方 */
  .s02 {
    min-height: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }
  /* 背景图从 absolute 改为 relative，自然撑开 4:3 高度 */
  .s02-bg {
    position: relative;
    inset: auto;
    width: 100%;
    aspect-ratio: 4/3;
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    background-color: #050505;
    transform: none;
    flex-shrink: 0;
  }
  /* 遮罩层隐藏（图片区域不需要遮罩） */
  .s02-overlay { display: none; }
  /* 内容区域深色背景，自然高度 */
  .s02-inner {
    padding: 24px var(--pad-x) 32px;
    background: linear-gradient(to bottom, rgba(0,0,0,0.88), rgba(0,0,0,0.97));
  }
  .s02-title { font-size: 24px; line-height: 1.28; letter-spacing: -0.01em; }
  .s02-sub   { font-size: 13px; margin-bottom: 18px; }
  /* 统计区：覆盖 768px 的 column，恢复横排 */
  .s02-stats-row {
    flex-direction: row;
    flex-wrap: wrap;
    padding-top: 14px;
    margin-bottom: 14px;
  }
  .s02-stat {
    flex: 1;
    min-width: 28%;
    padding-right: 10px;
    border-right: 0.5px solid rgba(255,255,255,0.12);
    border-bottom: none;
    padding-bottom: 0;
  }
  .s02-stat:last-of-type { padding-right: 0; border-right: none; }
  .s02-stat-num { font-size: clamp(20px, 6.5vw, 32px); }
  .s02-stat-label { font-size: 9px; letter-spacing: 0.08em; }
  /* 认证区：独占一行，盾牌横排 */
  .s02-cert-zone {
    flex: 0 0 100%;
    flex-direction: row;
    gap: 20px;
    padding-left: 0;
    padding-top: 12px;
    border-left: none;
    border-top: 0.5px solid rgba(255,255,255,0.1);
  }
  /* 销量证书：横向滑屏，snap 吸附 */
  .s02-sales-row {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    gap: 12px;
    padding-bottom: 12px;
    scrollbar-width: none;
  }
  .s02-sales-row::-webkit-scrollbar { display: none; }
  .s02-sales-card {
    flex: 0 0 72vw;
    scroll-snap-align: start;
  }
}

/* ============================================================
   S03 · PRODUCTS (Apple-style large cards, no purchase buttons)
   ============================================================ */
.s03 {
  background: var(--c-grey-bg);
  padding: 90px 0 70px;
  display: flex; flex-direction: column;
  position: relative;
}
.s03-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding: 0 var(--pad-x);
  margin-bottom: 36px;
}
.s03-title {
  display: inline-flex; align-items: baseline; gap: 14px; flex-wrap: wrap;
  font-size: clamp(32px, 5vw, 64px);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1;
}
.s03-title .hdr-main { color: #111; }
.s03-title .hdr-badge {
  display: inline-block;
  background: var(--c-yellow);
  color: #111;
  padding: 2px 14px 4px;
  border-radius: 6px;
  font-weight: 900;
  letter-spacing: -0.02em;
}
.s03-sub {
  font-size: 13px;
  color: rgba(0,0,0,0.5);
  margin-top: 12px;
  letter-spacing: 0.04em;
}
.s03-hint {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.32em;
  color: rgba(0,0,0,0.32);
  text-transform: uppercase;
  padding-bottom: 10px;
  white-space: nowrap;
}
.s03-track {
  display: flex;
  gap: 22px;
  padding: 8px var(--pad-x) 40px;
  overflow-x: auto;
  scrollbar-width: thin;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  /* 告知浏览器此区域横向滑动，避免与页面纵向滚动冲突
     适用 Android Chrome / 微信 X5 / 鸿蒙 Ark Web */
  touch-action: pan-x;
  /* 阻止该区域的过度滚动传递到父页面 */
  overscroll-behavior-x: contain;
}
.s03-track::-webkit-scrollbar { height: 8px; }
.s03-track::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.18); border-radius: 4px; }
.s03-track::-webkit-scrollbar-track { background: rgba(0,0,0,0.04); }

/* Apple-style large product card */
.p-card {
  flex: 0 0 360px;
  background: #fff;
  border: 0.5px solid rgba(0,0,0,0.06);
  border-radius: 18px;
  box-shadow: 0 4px 22px rgba(0,0,0,0.06);
  overflow: hidden;
  scroll-snap-align: start;
  transition: transform .35s var(--ease-out), box-shadow .35s var(--ease-out), border-color .25s;
  display: flex; flex-direction: column;
  cursor: pointer;
}
.p-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 24px 56px rgba(0,0,0,0.16);
  border-color: rgba(255,198,0,0.6);
}
.p-img {
  position: relative;
  height: 380px;
  background: linear-gradient(180deg, #fafafa 0%, #ebe9e3 100%);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.p-img::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 100%, rgba(0,0,0,0.06), transparent 60%);
  pointer-events: none;
}
.p-img img {
  max-width: 78%;
  max-height: 90%;
  object-fit: contain;
  filter: drop-shadow(0 14px 30px rgba(0,0,0,0.22));
  transition: transform .55s var(--ease-out);
  position: relative;
  z-index: 1;
}
.p-card:hover .p-img img { transform: scale(1.06) translateY(-4px); }
.p-pill {
  position: absolute; top: 16px; left: 16px;
  font-family: var(--font-en);
  font-size: 9px; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
  background: rgba(255,255,255,0.92);
  border: 0.5px solid rgba(0,0,0,0.1);
  padding: 5px 12px;
  border-radius: 99px;
  color: rgba(0,0,0,0.65);
  z-index: 2;
}
.p-award {
  position: absolute; top: 16px; right: 16px;
  font-family: var(--font-en);
  font-size: 9px; font-weight: 800;
  background: var(--c-yellow);
  color: #111;
  padding: 5px 10px;
  border-radius: 4px;
  letter-spacing: 0.08em;
  z-index: 2;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
}
.p-info { padding: 22px 26px 26px; }
.p-name { font-size: 17px; font-weight: 900; color: #111; line-height: 1.3; letter-spacing: -0.01em; }
.p-kw   { font-size: 12px; color: rgba(0,0,0,0.5); margin-top: 8px; line-height: 1.65; letter-spacing: 0.02em; }
.p-colors { display: flex; gap: 8px; margin-top: 18px; align-items: center; flex-wrap: wrap; }
.p-colors-label {
  font-family: var(--font-en);
  font-size: 9px; letter-spacing: 0.22em;
  color: rgba(0,0,0,0.32);
  margin-right: 4px;
}
.p-dot {
  width: 18px; height: 18px; border-radius: 50%;
  border: 1.5px solid rgba(0,0,0,0.1);
  cursor: pointer;
  transition: transform .18s var(--ease-out), border-color .18s, box-shadow .18s;
  flex-shrink: 0;
}
.p-dot:hover { transform: scale(1.25); }
.p-dot.sel   { border-color: #111; transform: scale(1.18); box-shadow: 0 0 0 2px rgba(255,198,0,0.5); }
.p-cta {
  margin-top: 22px;
  display: inline-flex;
  align-items: center;
  font-family: var(--font-en);
  font-size: 11px; font-weight: 800;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: #111;
  border-bottom: 1.5px solid #111;
  padding-bottom: 4px;
  transition: gap .25s, color .2s;
  gap: 6px;
}
.p-card:hover .p-cta { gap: 10px; color: var(--c-trace); border-bottom-color: var(--c-yellow); }

@media (max-width: 768px) {
  .p-card { flex: 0 0 280px; }
  .p-img { height: 280px; }
}

/* Detail panel */
.dp {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 200;
  display: none;
  align-items: center; justify-content: center;
  padding: 40px;
  backdrop-filter: blur(6px);
}
.dp.open { display: flex; animation: fadeIn .25s var(--ease-out); }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.dp::before {
  content: "";
  position: absolute; inset: 0;
  cursor: pointer;
}
.dp-close {
  position: absolute; top: 24px; right: 24px;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  border: none;
  color: #fff; font-size: 18px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  z-index: 210;
  transition: background .2s, transform .2s;
}
.dp-close:hover { background: var(--c-yellow); color: #111; transform: rotate(90deg); }

/* 统一白卡：图片区 + 文字区同一背景色 */
.dp-card {
  position: relative; z-index: 1;
  width: 100%; max-width: 880px;
  background: #fff;
  border-radius: 18px;
  overflow: hidden;
  max-height: 90vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.dp-hero {
  background: linear-gradient(180deg, #f6f4f0 0%, #e8e4dc 100%);
  flex-shrink: 0;
}
.dp-hero img {
  width: 100%;
  max-height: 46vh;
  object-fit: contain;
  padding: 28px 40px;
  display: block;
}
.dp-body { padding: 28px 36px 36px; background: #fff; }
.dp-eyebrow {
  font-family: var(--font-en);
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.32em; text-transform: uppercase;
  color: rgba(0,0,0,0.4);
  margin-bottom: 8px;
}
.dp-name { font-size: 26px; font-weight: 900; color: #111; margin-bottom: 6px; letter-spacing: -0.01em; }
.dp-tagline { font-size: 14px; color: rgba(0,0,0,0.55); line-height: 1.7; margin-bottom: 22px; }
.dp-div { height: 0.5px; background: rgba(0,0,0,0.1); margin-bottom: 22px; }
.dp-hls { display: flex; flex-direction: column; gap: 10px; margin-bottom: 26px; }
.dp-hls li {
  position: relative;
  padding-left: 18px;
  font-size: 13px; color: rgba(0,0,0,0.7); line-height: 1.7;
  list-style: none;
}
.dp-hls li::before {
  content: "";
  position: absolute; left: 0; top: 9px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--c-yellow);
  border: 1px solid var(--c-trace);
}
.dp-clabel {
  font-family: var(--font-en);
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: rgba(0,0,0,0.32);
  margin-bottom: 12px;
}
.dp-crow { display: flex; gap: 8px; flex-wrap: wrap; }
.dp-sw {
  width: 50px; height: 50px;
  border-radius: 10px;
  border: 1.5px solid rgba(0,0,0,0.1);
  cursor: pointer;
  transition: border-color .2s, transform .2s;
}
.dp-sw:hover { transform: scale(1.06); }
.dp-sw.sel { border-color: #111; border-width: 2px; box-shadow: 0 0 0 3px rgba(255,198,0,0.45); }

/* 手机端详情面板 — 全屏模式 */
@media (max-width: 600px) {
  .dp { padding: 0; align-items: flex-end; }
  .dp-close {
    top: 14px; right: 14px;
    width: 36px; height: 36px; font-size: 16px;
  }
  .dp-card {
    max-width: 100%;
    width: 100%;
    border-radius: 20px 20px 0 0;
    max-height: 92dvh;
    max-height: 92vh;
  }
  .dp-hero img { max-height: 36vh; padding: 20px 24px; }
  .dp-body { padding: 20px 20px 40px; }
  .dp-name { font-size: 20px; }
  .dp-tagline { font-size: 13px; }
}

/* ============================================================
   S04 · BRAND STORY (5-act timeline carousel, v4 prototype)
   ============================================================ */
.s04 {
  height: auto;
  min-height: 760px;
  position: relative;
  overflow: hidden;
  font-family: var(--font-cn);
  color: #fff;
}
.s04-bg {
  position: absolute; inset: 0;
  transition: background 1.1s cubic-bezier(0.4,0,0.2,1);
  background: linear-gradient(135deg, #2a1200 0%, #5c2800 55%, rgba(3,2,0,0.96) 100%);
  z-index: 0;
}
.s04-grain {
  position: absolute; inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.88' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
}
.s04-scan {
  display: none; /* 已停用 */
}
@keyframes s04Scan {
  0% { top: -2px; opacity: 0; }
  4% { opacity: 1; }
  96% { opacity: 0.4; }
  100% { top: 100%; opacity: 0; }
}

.s04-panel {
  position: absolute;
  inset: 0 0 200px 0;
  z-index: 5;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.55s;
  padding: 100px var(--pad-x) 0;
  display: flex;
  align-items: center;
  gap: 48px;
}
.s04-panel.s04-vis { opacity: 1; pointer-events: auto; }
.s04-txt { flex: 1; max-width: 520px; }
.s04-img {
  flex: 1.1;
  max-width: 600px;
  aspect-ratio: 4 / 3;
  background: rgba(255,255,255,0.03);
  border: 0.5px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
}
/* S04 Pan2 场景图轮播 */
.s04-img.s04-slideshow { position: relative; }
.s04-slide {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.95) contrast(1.06) sepia(0.18);
  opacity: 0;
  transition: opacity 1.1s ease;
}
.s04-slide.active { opacity: 1; }

.s04-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.95) contrast(1.06) sepia(0.18);
}
.s04-eyebrow {
  font-family: var(--font-en);
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.32em; text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: 14px;
}
.s04-yr {
  font-family: var(--font-en);
  font-size: clamp(56px, 9vw, 130px);
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.05em;
  line-height: 1;
  margin-bottom: 14px;
}
.s04-yr-sm { font-size: clamp(36px, 5vw, 64px); line-height: 1.05; }
.s04-ttl {
  font-size: clamp(18px, 2vw, 26px);
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.01em;
  line-height: 1.35;
  margin-bottom: 16px;
}
.s04-desc {
  font-size: clamp(13px, 1.2vw, 15px);
  line-height: 1.95;
  color: rgba(255,255,255,0.6);
  max-width: 480px;
}
.s04-qt {
  font-size: 13px;
  font-style: italic;
  color: rgba(255,198,0,0.6);
  border-left: 2px solid rgba(255,198,0,0.4);
  padding-left: 14px;
  margin-top: 18px;
  line-height: 1.7;
  max-width: 460px;
}
.s04-stats { display: flex; gap: 14px; margin-top: 22px; flex-wrap: wrap; }
.s04-sc {
  background: rgba(0,0,0,0.32);
  border: 0.5px solid rgba(255,255,255,0.14);
  border-radius: 4px;
  padding: 12px 18px;
}
.s04-sn {
  font-family: var(--font-en);
  font-size: 22px; font-weight: 900;
  color: #fff;
  letter-spacing: -0.03em;
  line-height: 1;
}
.s04-sn.yellow { color: var(--c-yellow); }
.s04-sn .u { font-size: 0.55em; font-weight: 700; color: var(--c-yellow); margin-left: 2px; }
.s04-sl {
  font-size: 10px;
  color: rgba(255,255,255,0.42);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 6px;
}

/* finale canvas 确保可见 */
.s04-finale-canvas {
  flex: 1.2;
  min-width: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.s04-finale-canvas canvas {
  display: block;
  max-width: 100%;
  border-radius: 4px;
}

/* finale */
.s04-pan-finale .s04-divv {
  position: absolute;
  left: 38%; top: 14%; bottom: 25%;
  width: 0.5px;
  background: linear-gradient(to bottom, transparent, rgba(255,198,0,0.22) 25%, rgba(255,198,0,0.22) 75%, transparent);
}
.s04-finale-canvas {
  flex: 1.2;
  display: flex;
  align-items: center;
  justify-content: center;
}
.s04-finale-canvas canvas {
  width: 100%;
  max-width: 580px;
  aspect-ratio: 16 / 9;
  border-radius: 4px;
  display: block;
}
.s04-ttl-finale { font-size: clamp(22px, 2.6vw, 34px); }

/* timeline */
.s04-tl {
  position: absolute;
  left: 0; right: 0;
  bottom: 78px;
  height: 100px;
  z-index: 8;
  pointer-events: none;
}
.s04-tl svg { width: 100%; height: 100%; overflow: visible; pointer-events: auto; }

.s04-bot-nav {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 60px;
  z-index: 10;
  display: flex;
  background: rgba(0,0,0,0.55);
  border-top: 0.5px solid rgba(255,255,255,0.08);
  backdrop-filter: blur(10px);
}
.s04-bn {
  flex: 1;
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  gap: 9px;
  transition: background .25s;
  padding: 0 12px;
}
.s04-bn:hover { background: rgba(255,255,255,0.05); }
.s04-bn.on { border-top: 1.5px solid rgba(255,255,255,0.6); }
.s04-bn-dot { width: 5px; height: 5px; border-radius: 50%; background: rgba(255,255,255,0.22); }
.s04-bn.on .s04-bn-dot { background: #fff; }
.s04-bn-txt {
  font-family: var(--font-en);
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: rgba(255,255,255,0.32);
  white-space: nowrap;
}
.s04-bn.on .s04-bn-txt { color: rgba(255,255,255,0.92); }

/* ---- Act 0 : 双图并排布局（1823+杜贝纳灯 合并幕，更紧凑优雅） ---- */
.s04-img-duo {
  flex: 0 0 auto;
  width: clamp(260px, 32vw, 420px);
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-self: center;
}
.s04-img-duo img {
  width: 100%;
  border-radius: 8px;
  object-fit: cover;
  filter: brightness(0.92) contrast(1.06) sepia(0.22);
  box-shadow: 0 10px 28px rgba(0,0,0,0.52);
}
.s04-img-duo img:first-child { aspect-ratio: 4/3; }
.s04-img-duo img:last-child  { aspect-ratio: 16/9; opacity: 0.84; }

/* ---- Act 1 : 传承 + 人物吸烟 + 手写神圣效果 ---- */
.s04-txt-legacy {
  flex: 1;
  max-width: 520px;
  position: relative;
  overflow: visible;
}
/* 手写图：缩小、透明、金光放射的神圣效果 */
.s04-holy-glyph {
  position: absolute;
  top: -8%; right: -14%;
  width: 80%;
  opacity: 0.11;
  transform: rotate(-6deg) scale(0.88);
  transform-origin: center center;
  filter:
    brightness(14) saturate(0.15)
    drop-shadow(0 0 14px rgba(255,220,100,1))
    drop-shadow(0 0 32px rgba(255,180,60,0.9))
    drop-shadow(0 0 56px rgba(255,140,30,0.6));
  pointer-events: none;
  z-index: 0;
  animation: holyGlow 3.8s ease-in-out infinite;
}
@keyframes holyGlow {
  0%,100% { opacity: 0.09; filter: brightness(14) saturate(0.15) drop-shadow(0 0 14px rgba(255,220,100,1)) drop-shadow(0 0 32px rgba(255,180,60,0.9)) drop-shadow(0 0 56px rgba(255,140,30,0.6)); }
  50%      { opacity: 0.16; filter: brightness(18) saturate(0.20) drop-shadow(0 0 20px rgba(255,240,140,1)) drop-shadow(0 0 50px rgba(255,200,80,1))   drop-shadow(0 0 80px rgba(255,160,50,0.8)); }
}
.s04-txt-legacy > *:not(.s04-holy-glyph) { position: relative; z-index: 1; }

@media (max-width: 900px) {
  .s04-panel { flex-direction: column; gap: 28px; padding-top: 80px; align-items: stretch; }
  .s04-img { width: 100%; max-width: none; aspect-ratio: 16/10; }
  .s04-img-duo { width: 100%; max-width: none; flex-direction: row; gap: 10px; }
  .s04-img-duo img:first-child { aspect-ratio: 1/1; }
  .s04-img-duo img:last-child  { aspect-ratio: 4/3; }
  .s04-tl { display: none; }
  .s04-bot-nav .s04-bn-txt { font-size: 9px; letter-spacing: 0.1em; }
}

/* ============================================================
   S05 · AWARDS & PATENTS (two horizontal marquee rows)
   ============================================================ */
.s05 {
  background: var(--c-navy);
  color: #fff;
  padding: 90px var(--pad-x) 60px;
  position: relative;
  overflow: hidden;
}
.s05-tex { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.s05-eyebrow { color: rgba(100,180,255,0.45); }
.s05-header { position: relative; z-index: 2; margin-bottom: 36px; }
.s05-title {
  font-size: clamp(32px, 4.2vw, 56px);
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 12px;
}
.s05-title em { color: var(--c-yellow); font-style: normal; }
.s05-stats-inline {
  display: flex; gap: 28px; align-items: center;
  margin-top: 16px;
}
.s05-si { display: flex; align-items: baseline; gap: 7px; }
.s05-si-num {
  font-family: var(--font-en);
  font-size: 30px;
  font-weight: 900;
  color: var(--c-yellow);
  letter-spacing: -0.04em;
  line-height: 1;
}
.s05-si-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.32);
}
.s05-si-sep { width: 0.5px; height: 26px; background: rgba(255,255,255,0.12); }

.s05-row {
  position: relative;
  z-index: 2;
  margin-bottom: 30px;
}
.s05-row-label {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}
.s05-row-txt {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: rgba(100,180,255,0.55);
}
.s05-row-count {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  color: rgba(255,198,0,0.55);
  letter-spacing: 0.14em;
}
.s05-row-line { flex: 1; height: 0.5px; background: linear-gradient(to right, rgba(100,180,255,0.16), transparent); }

.s05-marquee {
  position: relative;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 4%, #000 96%, transparent 100%);
          mask-image: linear-gradient(to right, transparent 0%, #000 4%, #000 96%, transparent 100%);
}
.s05-track {
  display: flex;
  gap: 12px;
  width: max-content;
  animation: marqueeLeft 60s linear infinite;
}
.s05-marquee[data-direction="right"] .s05-track { animation: marqueeRight 60s linear infinite; }
.s05-marquee:hover .s05-track { animation-play-state: paused; }
@keyframes marqueeLeft  { from { transform: translateX(0); }     to { transform: translateX(-50%); } }
@keyframes marqueeRight { from { transform: translateX(-50%); }  to { transform: translateX(0); } }

.cert-slide {
  width: 160px;
  flex-shrink: 0;
}
.cert-img-wrap {
  width: 160px;
  height: 220px;
  border: 0.5px solid rgba(100,180,255,0.16);
  border-radius: 4px;
  overflow: hidden;
  background: #fff;
  position: relative;
  transition: border-color .25s, transform .3s var(--ease-out), box-shadow .25s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cert-slide a { display: block; }
.cert-slide:hover .cert-img-wrap {
  border-color: rgba(100,180,255,0.45);
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(0,0,0,0.4);
}
.cert-img-wrap img {
  width: 100%; height: 100%;
  object-fit: contain;
  background: #fff;
}
.cert-tier {
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
}
.cert-tier-GOLD   { background: var(--c-yellow); }
.cert-tier-SILVER { background: rgba(180,200,220,0.85); }
.cert-tier-AWARD  { background: rgba(100,180,255,0.65); }
.cert-tier-PATENT { background: rgba(100,180,255,0.4); }
.cert-bottom-tag {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(6,10,20,0.95));
  padding: 14px 8px 6px;
  display: flex; justify-content: space-between; align-items: center;
}
.cert-tier-badge {
  font-family: var(--font-en);
  font-size: 9px; font-weight: 800;
  letter-spacing: 0.18em;
}
.cert-tier-badge.GOLD   { color: var(--c-yellow); }
.cert-tier-badge.SILVER { color: rgba(190,205,225,0.8); }
.cert-tier-badge.AWARD,
.cert-tier-badge.PATENT { color: rgba(100,180,255,0.7); }
.cert-info { margin-top: 8px; padding: 0 2px; }
.cert-year {
  font-family: var(--font-en);
  font-size: 10px; font-weight: 800;
  letter-spacing: 0.12em;
  margin-bottom: 4px;
}
.cert-year.GOLD   { color: var(--c-yellow); }
.cert-year.SILVER { color: rgba(190,205,225,0.7); }
.cert-year.AWARD,
.cert-year.PATENT { color: rgba(100,180,255,0.6); }
.cert-product {
  font-size: 12px; font-weight: 800;
  color: rgba(255,255,255,0.85);
  letter-spacing: 0.01em;
}
.cert-type-text {
  font-size: 10px;
  color: rgba(255,255,255,0.4);
  margin-top: 3px;
  line-height: 1.4;
}

.s05-sys {
  font-family: var(--font-en);
  font-size: 9px; font-weight: 700;
  letter-spacing: 0.32em; text-transform: uppercase;
  color: rgba(100,180,255,0.18);
  text-align: right;
  margin-top: 14px;
  position: relative; z-index: 2;
}

/* ============================================================
   S06 · 卡塔映像
   ============================================================ */
.s06 {
  background: var(--c-yellow);
  padding: 90px var(--pad-x) 80px;
  position: relative;
}
.s06::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 100% 0%, rgba(122,80,0,0.08), transparent 50%),
    radial-gradient(circle at 0% 100%, rgba(122,80,0,0.05), transparent 50%);
  pointer-events: none;
}
.s06-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 22px;
  flex-wrap: wrap;
  margin-bottom: 32px;
  position: relative; z-index: 2;
}
.s06-title {
  font-size: clamp(32px, 5vw, 64px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.03em;
}
.s06-title em {
  font-style: normal;
  background: #111; color: var(--c-yellow);
  padding: 0 14px;
  margin: 0 2px;
}
.s06-sub {
  font-family: var(--font-en);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.32em; text-transform: uppercase;
  color: rgba(17,17,17,0.42);
  margin-top: 12px;
}
.s06-filters { display: flex; gap: 4px; flex-wrap: wrap; }
.fp {
  font-family: var(--font-en);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
  padding: 9px 18px;
  background: rgba(17,17,17,0.08);
  color: rgba(17,17,17,0.55);
  border-radius: 0;
  transition: background .2s, color .2s, transform .15s;
}
.fp.on   { background: #111; color: var(--c-yellow); }
.fp:hover:not(.on) { background: rgba(17,17,17,0.18); color: #111; transform: translateY(-1px); }

.s06-wall {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: 130px;
  gap: 6px;
  position: relative; z-index: 2;
}
.wc {
  position: relative;
  background: #111;
  overflow: hidden;
  cursor: pointer;
  transition: transform .3s var(--ease-out), box-shadow .3s var(--ease-out);
  border-radius: 3px;
}
.wc:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(0,0,0,0.4); }
.wc-media {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: #111;
  overflow: hidden;
}
.wc-media img, .wc-media video {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .55s var(--ease-out), filter .35s;
}
.wc:hover .wc-media img,
.wc:hover .wc-media video { transform: scale(1.06); filter: brightness(0.85); }
.wc-tag {
  position: absolute; top: 12px; left: 12px; z-index: 3;
  font-family: var(--font-en);
  font-size: 9px; font-weight: 800;
  letter-spacing: 0.22em; text-transform: uppercase;
  padding: 4px 9px;
  border-radius: 1px;
  border: 0.5px solid;
}
.t-kv     { color:#FFC600; border-color:rgba(255,198,0,0.6);   background:rgba(255,198,0,0.18);}
.t-video  { color:#ff9090; border-color:rgba(255,144,144,0.55); background:rgba(255,144,144,0.18);}
.t-news   { color:#7fd5ff; border-color:rgba(127,213,255,0.55); background:rgba(127,213,255,0.16);}
.wc-yr {
  position: absolute; top: 12px; right: 12px; z-index: 3;
  font-family: var(--font-en);
  font-size: 11px; font-weight: 900;
  color: #fff;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  background: rgba(0,0,0,0.55);
  border-radius: 1px;
}
.wc-info {
  position: absolute;
  inset: auto 0 0 0;
  background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.86) 100%);
  padding: 30px 14px 14px;
  z-index: 2;
}
.wc-title { font-size: 12px; font-weight: 900; color: #fff; line-height: 1.25; letter-spacing: -0.01em; }
.wc-desc {
  font-size: 10px;
  color: rgba(255,255,255,0.55);
  margin-top: 4px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.play-btn {
  position: absolute; inset: 0; z-index: 3;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.18);
  pointer-events: none;
  transition: opacity .3s;
}
.play-circle {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--c-yellow);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 22px rgba(0,0,0,0.5);
  transition: transform .25s var(--ease-out);
}
.wc:hover .play-circle { transform: scale(1.08); }
.play-tri {
  width: 0; height: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 16px solid #111;
  margin-left: 4px;
}
.wc-slot {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  width: 100%; height: 100%;
  color: rgba(255,255,255,0.32);
  background: repeating-linear-gradient(45deg, rgba(255,255,255,0.02) 0 8px, transparent 8px 16px), #1a1a1a;
}
.wc-slot .slot-icon { font-size: 32px; opacity: 0.5; line-height: 1; }
.wc-slot .slot-label { font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; margin-top: 8px; font-weight: 700; }

.wc.size-l { grid-column: span 6; grid-row: span 3; }
.wc.size-m { grid-column: span 4; grid-row: span 2; }
.wc.size-s { grid-column: span 3; grid-row: span 2; }
.wc.size-w { grid-column: span 8; grid-row: span 2; }
.wc.size-t { grid-column: span 4; grid-row: span 1; }

@media (max-width: 900px) {
  .s06-wall { grid-template-columns: repeat(6, 1fr); grid-auto-rows: 110px; }
  .wc.size-l { grid-column: span 6; grid-row: span 3; }
  .wc.size-m, .wc.size-s, .wc.size-w, .wc.size-t { grid-column: span 6; grid-row: span 2; }
}

/* img-contain: 完整展示图片，不裁切 */
.wc.img-contain .wc-media img {
  object-fit: contain;
  background: #111;
}

/* ============================================================
   S06 灯箱 · Wall Lightbox
   ============================================================ */
.s06-lb {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.9);
  z-index: 300;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 72px 40px 100px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.s06-lb.open {
  display: flex;
  animation: fadeIn .28s var(--ease-out);
}
.s06-lb-close {
  position: absolute; top: 22px; right: 26px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  color: #fff;
  font-size: 18px; line-height: 1;
  border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s, transform .2s;
  z-index: 310;
}
.s06-lb-close:hover { background: var(--c-yellow); color: #111; transform: rotate(90deg); }
.s06-lb-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 1200px;
  overflow: hidden;
}
.s06-lb-stage img {
  max-width: 100%;
  max-height: 74vh;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 24px 72px rgba(0,0,0,0.7);
}
.s06-lb-stage video {
  max-width: 100%;
  max-height: 74vh;
  width: 100%;
  border-radius: 4px;
  box-shadow: 0 24px 72px rgba(0,0,0,0.7);
}
.s06-lb-bar {
  text-align: center;
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  flex-shrink: 0;
}
.s06-lb-year {
  font-family: var(--font-en);
  font-size: 10px; font-weight: 800;
  letter-spacing: 0.38em; text-transform: uppercase;
  color: var(--c-yellow);
}
.s06-lb-title {
  font-size: 16px; font-weight: 700;
  color: #fff;
  letter-spacing: -0.01em;
  margin: 0;
}
.s06-lb-desc {
  font-size: 12px;
  color: rgba(255,255,255,0.42);
  margin: 0;
}
@media (max-width: 768px) {
  .s06-lb { padding: 60px 16px 80px; }
  .s06-lb-stage img,
  .s06-lb-stage video { max-height: 60vh; }
}

/* ============================================================
   S07 · CTA + FOOTER  (左 3D 蓝焰恐龙 / 右墙体讯息)
   ============================================================ */
.s07 {
  background: var(--c-yellow);
  display: flex; flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  position: relative;
  padding: 80px var(--pad-x) 0;
}
.s07-grid { z-index: 1; opacity: 0.95; }

.s07-stage {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 40px;
  position: relative; z-index: 4;
  padding-bottom: 30px;
}

/* 左：3D 蓝焰恐龙 */
.s07-dino-zone {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.s07-dino-3d {
  width: 100%;
  max-width: 640px;
  height: auto;
  display: block;
  filter: drop-shadow(0 28px 56px rgba(0,0,0,0.18)) drop-shadow(0 0 40px rgba(80,160,255,0.20));
  animation: dinoArtFloat 6s ease-in-out infinite, s07DinoBreath 3.4s ease-in-out infinite;
  transform-origin: bottom center;
}
@keyframes s07DinoBreath {
  0%,100% { filter: drop-shadow(0 28px 56px rgba(0,0,0,0.18)) drop-shadow(0 0 40px rgba(80,160,255,0.20)); }
  50%     { filter: drop-shadow(0 32px 60px rgba(0,0,0,0.22)) drop-shadow(0 0 65px rgba(80,180,255,0.40)); }
}
.s07-dino-tag {
  position: absolute;
  top: 18px; right: 10px;
  display: flex; flex-direction: column; gap: 4px;
  font-family: var(--font-en);
  font-size: 9px; font-weight: 700;
  letter-spacing: 0.32em; text-transform: uppercase;
  color: rgba(17,17,17,0.4);
  text-align: right;
  white-space: nowrap;
  z-index: 5;
}
.s07-spark {
  position: absolute;
  inset: 0;
  z-index: 4;
  pointer-events: none;
  width: 100%; height: 100%;
}

/* 右：墙体讯息 */
.s07-msg {
  display: flex; flex-direction: column;
  gap: 14px;
}
.s07-wall { position: relative; z-index: 4; }
.s07-wall-line {
  font-family: var(--font-cn);
  font-size: clamp(64px, 11vw, 152px);
  font-weight: 900;
  line-height: 0.86;
  letter-spacing: -0.06em;
  color: #111;
}
.s07-wall-line-2 { margin-top: 4px; margin-left: 4%; }
.s07-wall-line-2 .hl {
  display: inline-block;
  background: #111;
  color: var(--c-yellow);
  padding: 0 0.14em;
  margin-left: 0.06em;
  letter-spacing: -0.03em;
}

/* tagline 大字版（秒应控焰 · 收放自如） */
.s07-tagline {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 14px;
  font-family: var(--font-cn);
  font-size: clamp(22px, 3vw, 36px);
  font-weight: 800;
  letter-spacing: 0.06em;
  color: rgba(17,17,17,0.78);
  flex-wrap: wrap;
}
.s07-tagline .t-sep {
  display: inline-block;
  width: 8px; height: 8px;
  background: rgba(17,17,17,0.42);
  border-radius: 50%;
}

/* "全国销量 NO.1" 强调行 */
.s07-tagline-hero {
  display: inline-flex; align-items: center; gap: 14px;
  margin-top: 4px;
  font-family: var(--font-cn);
  font-size: clamp(24px, 3.4vw, 42px);
  font-weight: 900;
  letter-spacing: 0.04em;
  color: #111;
}
.s07-tagline-hero .t-no1-sub {
  font-family: var(--font-en);
  font-size: clamp(14px, 1.8vw, 22px);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: rgba(17,17,17,0.55);
  align-self: center;
}
.s07-tagline-hero .t-no1-tag {
  display: inline-block;
  background: #111;
  color: var(--c-yellow);
  font-family: var(--font-en);
  font-weight: 900;
  font-size: clamp(28px, 4vw, 50px);
  letter-spacing: -0.02em;
  padding: 2px 14px 4px;
  border-radius: 6px;
}

/* QR */
.s07-qr-block {
  margin-top: 18px;
  display: flex; flex-direction: column;
  gap: 12px;
}
/* 桌面（>600px）：QR 块作为 stage 第3个子节点，定位到右列第2行 */
.s07-stage > .s07-qr-block {
  grid-column: 2;
  align-self: start;
}
.qr-pair { display: flex; gap: 18px; align-items: flex-start; }
.qr-card {
  display: flex; flex-direction: column; align-items: center;
  background: #fff;
  border: 0.5px solid rgba(17,17,17,0.16);
  border-radius: 10px;
  padding: 10px 10px 12px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.10);
  transition: transform .25s var(--ease-out), box-shadow .25s, border-color .25s;
}
.qr-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.15);
  border-color: rgba(17,17,17,0.4);
}
.qr-real { width: 130px; height: auto; display: block; }
.s07-qr-hint {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.32em;
  color: rgba(17,17,17,0.42);
}

.s07-divider { height: 0.5px; background: rgba(17,17,17,0.16); margin: 0; position: relative; z-index: 4; }
.s07-footer {
  padding: 20px 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative; z-index: 4;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand .cn { font-size: 14px; font-weight: 900; letter-spacing: 0.14em; color: #111; }
.footer-brand .bar { display: inline-block; width: 1px; height: 14px; background: rgba(17,17,17,0.35); }
.footer-brand .en { font-family: var(--font-en); font-size: 14px; font-weight: 900; letter-spacing: 0.24em; color: #111; }
.footer-icp {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: rgba(17,17,17,0.5);
}

@media (max-width: 900px) {
  .s07-stage { grid-template-columns: 1fr; gap: 24px; padding-top: 30px; }
  .s07-dino-zone { order: 1; }
  .s07-msg { order: 2; }
  /* QR 块单列时排在最后，重置桌面的 grid-column 定位 */
  .s07-stage > .s07-qr-block { grid-column: auto; order: 3; }
  .s07-wall-line { font-size: clamp(56px, 14vw, 96px); }
  .s07-tagline { font-size: clamp(18px, 5vw, 26px); }
  .s07-tagline-hero { font-size: clamp(20px, 6vw, 30px); flex-wrap: wrap; }
  .s07-tagline-hero .t-no1-tag { font-size: clamp(24px, 7vw, 36px); }
  .s07-footer { flex-direction: column; gap: 10px; text-align: center; }
}

/* ============================================================
   S01 · 手机端简化装饰层
   ============================================================ */
@media (max-width: 600px) {
  /* 手机屏幕小，科技感装饰 SVG 隐藏节省性能 */
  .s01 .tech-grid { display: none; }
  .s01 .corner-brackets { display: none; }
  .s01-text { padding-top: 80px; text-align: center; }
  .s01-en { font-size: 11px; letter-spacing: 0.22em; }
  .cta-btn { align-self: center; }
  .scroll-hint { display: none; }
}

/* ============================================================
   S01 · 手机端横屏景观模式
   取消全屏高度 → 改为 4:3 横屏比例，景观图完整呈现
   ============================================================ */
@media (max-width: 600px) {
  /* Section 改为固定横屏比例，移除全屏高度 */
  .s01 {
    min-height: 0;
    aspect-ratio: 4 / 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }
  /* 景观图：contain = 完整显示，两侧用品牌暖黄填充 */
  .s01-scene-img {
    object-fit: contain;
    object-position: center center;
    animation: none; /* 小屏省去动画开销 */
  }
  /* 水面光影在 contain 模式下不适用 */
  .s01-water-shimmer { display: none; }
  /* 蒙版收窄到底部过渡带，不遮挡图片主体 */
  .s01-scene-vignette {
    background:
      linear-gradient(180deg, transparent 70%, rgba(130,70,0,0.45) 100%);
  }
  /* 文字区域：紧凑居中，不再需要 80px 顶部空白 */
  .s01-text {
    padding-top: 0;
    max-width: 90%;
    text-align: center;
  }
  .s01-title { font-size: clamp(32px, 9.5vw, 46px); }
}

/* ============================================================
   S04 · 手机端图片完整显示
   历史肖像 / 场景图改为 contain，不裁切人物
   ============================================================ */
@media (max-width: 600px) {
  /* 图片容器：16:9 宽屏比例 + contain = 横屏图片完整显示，无裁切 */
  .s04-img {
    aspect-ratio: 16 / 9;
    background: rgba(0,0,0,0.25);
  }
  .s04-img img,
  .s04-slide {
    object-fit: contain;
  }
  /* 双图组合：横排并排 */
  .s04-img-duo {
    flex-direction: row;
    gap: 8px;
  }
  /* ★ Bug 1 fix: min-width:0 → 允许 flex item 收缩到 50%；
     ★ Bug 2 fix: aspect-ratio 通配规则被 900px 的 :first-child/:last-child 覆盖，
                  需在同等选择器处再次覆盖 */
  .s04-img-duo img {
    flex: 1;
    min-width: 0;        /* 解除 min-width:auto，允许收缩 */
    aspect-ratio: 16/9;
    object-fit: contain; /* contain = 完整显示，不裁切 */
    background: rgba(0,0,0,0.25); /* 留白区域深色填充 */
  }
  .s04-img-duo img:first-child {
    aspect-ratio: 16/9;  /* 覆盖 900px 的 1/1 */
  }
  .s04-img-duo img:last-child {
    aspect-ratio: 16/9;  /* 覆盖 900px 的 4/3 */
    opacity: 0.88;
  }
  /* ★ 关键修复：base CSS 的 flex:1 会让 s04-txt 撑满面板，把图片顶出边界 */
  .s04-txt { flex: none; }
  /* 年份数字缩小，节省垂直空间 */
  .s04-yr  { font-size: 38px; margin-bottom: 8px; }
  /* 描述段落行高收窄，减少占用 */
  .s04-desc { line-height: 1.65; }
  /* 文字面板顶部留出导航栏空间 */
  .s04-panel { padding-top: 68px; }
}

/* ============================================================
   S07 · 手机端取消全屏高度，紧凑显示
   让恐龙 + 文字 + 二维码自然排列，无多余空白
   ============================================================ */
@media (max-width: 600px) {
  .s07 {
    min-height: 0;       /* 取消 100dvh，内容多高就多高 */
    padding-top: 60px;
    padding-bottom: 0;
  }
  /* ── 两列横屏：恐龙（左）+ 文字（右），同一画面 ── */
  .s07-stage {
    grid-template-columns: 45% 1fr;
    gap: 10px;
    padding-top: 8px;
    align-items: center;
  }
  /* 恐龙：在左列内完整显示，适度缩小 */
  .s07-dino-3d {
    width: 100%;
    max-width: 100%;
    max-height: 36vh;
    object-fit: contain;
    display: block;
  }
  /* 墙体大字：适应右列宽度，缩小字号 */
  .s07-wall-line {
    font-size: clamp(28px, 8vw, 38px);
    letter-spacing: -0.04em;
    line-height: 1.1;
  }
  /* tagline 字号缩小 */
  .s07-tagline { font-size: clamp(11px, 3.5vw, 15px); gap: 8px; }
  .s07-tagline-hero { font-size: clamp(11px, 3.2vw, 15px); gap: 6px; }
  .s07-tagline-hero .t-no1-tag { font-size: clamp(12px, 3.5vw, 16px); padding: 1px 5px; }
  /* QR 区块：横跨两列，独占下方全宽 */
  .s07-stage > .s07-qr-block {
    grid-column: 1 / -1;
    order: 3;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 10px;
    padding-bottom: 24px;
  }
}

/* ============================================================
   S05 · 移动端断点（原无断点，现补全）
   ============================================================ */
@media (max-width: 768px) {
  .s05 { padding: 70px var(--pad-x) 50px; }
  .s05-title { font-size: clamp(26px, 7vw, 44px); }
  .s05-stats-inline { gap: 16px; flex-wrap: wrap; }
  .s05-si-num { font-size: 24px; }
  .s05-row-label { gap: 8px; }
  .s05-row-txt { font-size: 9px; }
}
@media (max-width: 480px) {
  .s05-stats-inline { flex-direction: column; align-items: flex-start; gap: 12px; }
  .s05-si-sep { display: none; }
}

/* ============================================================
   S06 · 内容墙 480px 双列断点
   ============================================================ */
@media (max-width: 480px) {
  .s06-wall { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 140px; }
  .wc.size-l,
  .wc.size-w { grid-column: span 2; grid-row: span 2; }
  .wc.size-m { grid-column: span 2; grid-row: span 2; }
  .wc.size-s,
  .wc.size-t { grid-column: span 1; grid-row: span 1; }
  .s06-header { flex-direction: column; align-items: flex-start; gap: 14px; }
  .s06-filters { flex-wrap: wrap; gap: 6px; }
}

/* ============================================================
   全站 · 手机横屏保护
   屏幕高度 ≤500px（手机横屏）时取消全屏高度，改为自然内容高度
   ============================================================ */
@media (max-height: 500px) and (orientation: landscape) {
  .screen { min-height: auto; }
  .s01 { min-height: 100dvh; min-height: 100vh; } /* S01 保留全屏 */
  .s04-panel { min-height: auto; padding-top: 56px; padding-bottom: 40px; }
  .s04-tl { display: none; }
  .s07 { min-height: auto; padding-bottom: 40px; }
}

/* ============================================================
   全站 · 纯装饰性 hover 效果只在有真实鼠标时生效
   （防止触屏点击后 hover 状态"卡住"）
   ============================================================ */
@media (hover: none) {
  .p-card:hover { transform: none; box-shadow: none; }
  .p-card:hover .p-cta { gap: 0; color: inherit; border-bottom-color: transparent; }
  .nav-link:hover { color: rgba(17,17,17,0.55); }
  .wc:hover .wc-overlay { opacity: 0; }
}

/* ============================================================
   全站 · iPhone 底部安全区（Home 指示条 / 圆角区域）
   ============================================================ */
.s07-footer {
  padding-bottom: calc(20px + var(--safe-bottom, 0px));
}
/* 手机端详情面板也要避开底部安全区 */
@media (max-width: 600px) {
  .dp-card { padding-bottom: var(--safe-bottom, 0px); }
}

/* ============================================================
   全站 · 动画性能提示（GPU 合成层）
   will-change 只加在确实有动画的元素上，避免滥用
   ============================================================ */
.s04-panel  { will-change: opacity, transform; }
.s06-lb     { will-change: opacity; }
.dp         { will-change: opacity; }
.p-card     { will-change: transform; }
.s05-track  { will-change: transform; }