/* ============================================================
 * pages.css — 页面级组件样式（首页 / 关于 / 方案 / 产品 / 案例 / 新闻 / 联系）
 * ============================================================ */

/* ================= 首页 Hero（F-HM-001） ================= */
/* 全屏淡蓝背景带：pale-blue → 白 渐变 + 细点阵纹理，与下方白色内容区拉开层次
   （品牌渐变仅允许出现在媒体卡图像内部，此处只用 token 色） */
.hero {
  position: relative;
  padding-top: calc(var(--space-section) * 1.1);
  padding-bottom: calc(var(--space-section) * 0.75);
  overflow: hidden;
  background: linear-gradient(180deg, var(--color-pale-blue) 0%, #f8fbff 58%, var(--color-canvas) 100%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(27, 105, 205, .07) 1px, transparent 1.6px);
  background-size: 26px 26px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 72%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 72%);
  pointer-events: none;
}
.hero > .container { position: relative; z-index: 1; }
.hero__copy { text-align: center; max-width: 900px; margin-inline: auto; }
.hero__title { margin-top: var(--space-xl); }
.hero__sub {
  margin: var(--space-xl) auto 0;
  font-size: var(--fs-body-lg);
  line-height: 1.4;
  color: var(--color-body-muted);
  max-width: 56ch;
}
.hero__actions {
  margin-top: var(--space-xxl);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

/* 双卡媒体组合：宽幅控制台卡 + 窄幅照片卡 */
.hero__media {
  margin-top: calc(var(--space-section) * 0.8);
  display: grid;
  grid-template-columns: 1.65fr 1fr;
  gap: var(--space-xl);
  align-items: stretch;
}

/* agent-console-card：近黑面板 + 状态 chips + 集成徽标 */
.console-card {
  background: var(--color-cta);
  color: var(--color-cta-on);
  border-radius: var(--radius-sm);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  min-height: 380px;
}
.console-card__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}
.console-card__title {
  font-family: var(--font-mono);
  font-size: var(--fs-mono-label);
  letter-spacing: 0.28px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
}
.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.28px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: rgba(255, 255, 255, 0.8);
}
.status-chip::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: var(--radius-full);
  background: #2ee6a8;
}
.console-grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.console-tile {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-sm);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-md);
  background: rgba(255, 255, 255, 0.03);
}
.console-tile .num {
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: -0.02em;
  line-height: 1;
}
.console-tile .lbl {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.28px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
}
.console-spark { display: flex; align-items: flex-end; gap: 4px; height: 44px; }
.console-spark i {
  flex: 1;
  background: linear-gradient(180deg, var(--color-gradient-end), var(--color-gradient-start));
  border-radius: 2px 2px 0 0;
  min-height: 6px;
}
.console-badges { display: flex; flex-wrap: wrap; gap: var(--space-sm); }
.badge {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.28px;
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.75);
}

/* hero-photo-card：22px 圆角照片卡（图像内含品牌渐变） */
.photo-card { position: relative; border-radius: var(--radius-lg); overflow: hidden; min-height: 380px; }
.photo-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.photo-card__caption {
  position: absolute;
  left: var(--space-xl);
  right: var(--space-xl);
  bottom: var(--space-xl);
  color: #fff;
  font-size: var(--fs-caption);
  line-height: 1.4;
  text-shadow: 0 1px 8px rgba(0, 0, 0, .45);
}

/* ---------- Hero 四屏幻灯片（左右结构：文案在左，媒体在右） ---------- */
.hero-slider { position: relative; }
.hero-slider__viewport { overflow: hidden; }
.hero-slider__track {
  display: flex;
  transition: transform .55s cubic-bezier(.33, .1, .2, 1);
  align-items: stretch;
}
.hero-slide {
  flex: 0 0 100%; min-width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: calc(var(--space-section) * .5);
  align-items: center;
}
.hero-slide .hero__copy { text-align: left; max-width: none; margin-inline: 0; }
.hero-slide .hero__title { margin-top: var(--space-lg); }
.hero-slide .h-hero { font-size: clamp(30px, 3.4vw, 46px); line-height: 1.18; }
.hero-slide .hero__sub {
  margin-top: var(--space-lg);
  margin-left: 0;
  font-size: var(--fs-body);
  max-width: 42ch;
}
.hero-slide .hero__actions { justify-content: flex-start; margin-top: var(--space-xl); }
.hero-slide .hero__media { margin-top: 0; grid-template-columns: 1fr; }
.hero-slide .design-card { max-width: none; margin-inline: 0; overflow: hidden; }
.hero-slide[aria-hidden="true"] { pointer-events: none; }

/* 媒体动效：当前屏图片缓慢推拉 + 卡片轻浮动，营造"实时投屏"动感 */
@keyframes hero-kenburns {
  0%   { transform: scale(1) translateY(0); }
  50%  { transform: scale(1.06) translateY(-8px); }
  100% { transform: scale(1) translateY(0); }
}
@keyframes hero-glow {
  0%, 100% { box-shadow: 0 24px 64px rgba(27, 105, 205, .18); }
  50%      { box-shadow: 0 32px 88px rgba(2, 166, 248, .32); }
}
.hero-slide.is-active .design-card img {
  animation: hero-kenburns 12s ease-in-out infinite;
  will-change: transform;
}
.hero-slide.is-active .design-card {
  animation: hero-glow 8s ease-in-out infinite;
}

.hero-slider__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 48px; height: 48px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-hairline);
  background: var(--color-canvas);
  color: var(--color-ink);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
  /* 默认隐藏，鼠标靠近轮播区域时淡入 */
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease, border-color .18s ease, background .18s ease, color .18s ease;
}
.hero-slider:hover .hero-slider__nav,
.hero-slider:focus-within .hero-slider__nav { opacity: 1; pointer-events: auto; }
.hero-slider__nav:hover { background: var(--color-cta); color: var(--color-cta-on); border-color: var(--color-cta); }
.hero-slider__nav--prev { left: -12px; }
.hero-slider__nav--next { right: -12px; }

.hero-slider__dots {
  margin-top: var(--space-xxl);
  display: flex;
  justify-content: center;
  gap: var(--space-md);
}
.hero-slider__dot {
  width: 40px; height: 4px;
  border-radius: var(--radius-full);
  border: 0;
  padding: 0;
  background: var(--color-hairline);
  cursor: pointer;
  transition: background .18s ease, width .18s ease;
}
.hero-slider__dot.is-active { background: var(--color-primary); width: 64px; }

/* 设计图媒体卡：深色工程面板 + 22px 圆角 */
.design-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #0b0f14;
  border: 1px solid var(--color-hairline);
}
.design-card img { display: block; width: 100%; height: auto; }
.design-card__caption {
  padding: var(--space-lg) var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, .08);
  color: rgba(255, 255, 255, .72);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .28px;
  text-transform: uppercase;
  background: rgba(255, 255, 255, .03);
}

/* ---------- 移动物联网 App 展示带 ---------- */
.app-showcase {
  display: grid;
  grid-template-columns: minmax(240px, 340px) 1fr;
  gap: calc(var(--space-section) * .6);
  align-items: center;
}
.app-showcase__phone img { display: block; width: 100%; height: auto; }
.app-showcase__copy .h-section { margin-top: var(--space-lg); }
.app-showcase__copy .lead { margin-top: var(--space-lg); }
.app-showcase__list {
  margin-top: var(--space-xxl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  list-style: none;
}
.app-showcase__list li {
  position: relative;
  padding-left: 30px;
  font-size: var(--fs-body);
  line-height: 1.5;
  color: var(--color-body-muted);
}
.app-showcase__list .tick {
  position: absolute;
  left: 0; top: 5px;
  width: 18px; height: 18px;
  border-radius: var(--radius-full);
  background: var(--color-pale-blue);
}
.app-showcase__list .tick::after {
  content: "";
  position: absolute;
  left: 5px; top: 5px;
  width: 8px; height: 4px;
  border-left: 1.6px solid var(--color-primary);
  border-bottom: 1.6px solid var(--color-primary);
  transform: rotate(-45deg);
}

@media (max-width: 1023px) {
  .hero__media { grid-template-columns: 1fr; }
  .hero-slide { grid-template-columns: 1fr; gap: calc(var(--space-section) * .4); }
  .console-card, .photo-card { min-height: 300px; }
  .hero-slider__nav { display: none; }
  .app-showcase { grid-template-columns: 1fr; gap: var(--space-xxl); }
  .app-showcase__phone { max-width: 300px; margin-inline: auto; }
}
@media (max-width: 767px) {
  .console-grid { grid-template-columns: 1fr 1fr; }
  .console-tile:nth-child(4) { display: none; }
  .design-card__caption { font-size: 11px; padding: var(--space-md) var(--space-lg); }
}
@media (prefers-reduced-motion: reduce) {
  .hero-slider__track { transition: none; }
  .hero-slide.is-active .design-card img,
  .hero-slide.is-active .design-card { animation: none; }
}

/* ================= 信任 Logo 条（F-HM-005 / F-AB-006） ================= */
.trust-strip { text-align: center; }
.trust-strip__label {
  font-size: var(--fs-caption);
  color: var(--color-muted);
  max-width: 52ch;
  margin: 0 auto var(--space-section);
}
.trust-strip__logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: calc(var(--space-section) * 0.55) calc(var(--space-section) * 0.75);
}
.trust-strip__logos img {
  height: 56px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  /* 图像已预处理为透明底近黑 #17171c 单色，无需再压黑 */
  opacity: .62;
  filter: saturate(0);
  transition: opacity .22s ease, transform .22s ease;
}
/* 悬停：仅上浮 + 放大 + 加深，不做颜色变化（F-HM-005 规范） */
.trust-strip__logos img:hover {
  opacity: 1;
  transform: translateY(-3px) scale(1.06);
}
@media (max-width: 1023px) {
  .trust-strip__logos img { height: 44px; max-width: 170px; }
}
@media (max-width: 640px) {
  .trust-strip__logos { gap: var(--space-xxl) var(--space-section); }
  .trust-strip__logos img { height: 36px; max-width: 130px; }
}

/* ================= 公司简介带（F-HM-002） ================= */
.intro__text {
  font-size: var(--fs-body-lg);
  line-height: 1.55;
  color: var(--color-ink);
  text-align: center;
}
.stat-row {
  margin-top: var(--space-section);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--color-hairline);
}
.stat-row__item {
  padding: var(--space-xl) var(--space-lg) var(--space-lg);
  border-right: 1px solid var(--color-hairline);
}
.stat-row__item:last-child { border-right: 0; }
.stat-row__num {
  font-family: var(--font-display);
  font-size: var(--fs-card-heading);
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.stat-row__num small { font-size: 18px; color: var(--color-slate); margin-left: 2px; }
.stat-row__lbl {
  margin-top: var(--space-sm);
  font-size: var(--fs-caption);
  color: var(--color-muted);
}
@media (max-width: 767px) {
  .stat-row { grid-template-columns: 1fr 1fr; }
  .stat-row__item:nth-child(2n) { border-right: 0; }
  .stat-row__item { border-bottom: 1px solid var(--color-hairline); }
  .stat-row__item:nth-last-child(-n+2) { border-bottom: 0; }
}

/* ================= 核心业务卡（F-HM-003） ================= */
.biz-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}
.biz-card {
  background: var(--color-canvas);
  border: 1px solid var(--color-card-border);
  border-top: 1px solid var(--color-hairline);
  border-radius: var(--radius-sm);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  transition: border-color .18s ease;
}
.biz-card:hover { border-color: var(--color-ink); }
.biz-card p { font-size: var(--fs-body); color: var(--color-body-muted); flex: 1; }
.biz-card .link-underline { font-size: var(--fs-button); }
@media (max-width: 1023px) { .biz-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .biz-grid { grid-template-columns: 1fr; } }

/* ================= 行业标签云（F-HM-004） ================= */
.industry-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}
.industry-pill {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 20px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-xl);
  font-size: var(--fs-body);
  transition: border-color .18s ease, background-color .18s ease;
}
.industry-pill:hover { border-color: var(--color-ink); background: var(--color-canvas); }

/* ================= 案例滚动带（F-HM-006） ================= */
.case-marquee { overflow: hidden; position: relative; }
.case-marquee__track {
  display: flex;
  gap: var(--space-xl);
  width: max-content;
  animation: marquee 36s linear infinite;
}
.case-marquee:hover .case-marquee__track,
.case-marquee:focus-within .case-marquee__track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
.case-slide {
  width: 340px;
  flex-shrink: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
}
.case-slide img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.case-slide__body { padding: var(--space-lg); }
.case-slide__tag {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.28px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
}
.case-slide__title { margin-top: var(--space-xs); font-size: var(--fs-body-lg); color: #fff; }
@media (max-width: 640px) { .case-slide { width: 260px; } }

/* ================= 新闻列表（F-HM-010 / F-NW-001） ================= */
.news-list { border-top: 1px solid var(--color-hairline); }
.news-row {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: var(--space-xl);
  align-items: baseline;
  padding-block: var(--space-xl);
  border-bottom: 1px solid var(--color-hairline);
}
.news-row time {
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  letter-spacing: 0.28px;
  color: var(--color-muted);
  white-space: nowrap;
}
.news-row__main h3 { font-size: var(--fs-feature-heading); line-height: 1.3; }
.news-row:hover h3 { color: var(--color-primary); }
.news-row__main p {
  margin-top: var(--space-sm);
  font-size: var(--fs-caption);
  color: var(--color-body-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-row__cat { font-size: var(--fs-micro); color: var(--color-slate); white-space: nowrap; }
@media (max-width: 767px) {
  .news-row { grid-template-columns: 1fr; gap: var(--space-sm); }
  .news-row__cat { order: -1; }
}

/* ================= CTA 区（F-HM-012） ================= */
.cta-band {
  border-radius: var(--radius-lg);
  padding: calc(var(--space-section) * 0.8) var(--space-section);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-section);
  align-items: center;
  background: var(--color-deep-green);
  color: var(--color-cta-on);
}
.cta-band h2 {
  font-family: var(--font-display);
  font-size: var(--fs-section-heading);
  line-height: 1.2;
  letter-spacing: -0.01em;
  font-weight: 400;
}
.cta-band p { margin-top: var(--space-lg); color: rgba(255, 255, 255, .78); font-size: var(--fs-body-lg); }
.cta-band__form { display: grid; gap: var(--space-md); }
.cta-band__form .row { display: flex; gap: var(--space-md); }
.cta-band__form input:not([type="checkbox"]) {
  flex: 1;
  min-height: 48px;
  border-radius: var(--radius-xs);
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  padding: 12px 16px;
}
.cta-band__form input[type="checkbox"] {
  width: 15px;
  height: 15px;
  min-height: 0;
  flex: 0 0 auto;
  padding: 0;
  margin-top: 3px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.1);
  accent-color: #fff;
  cursor: pointer;
}
.cta-band__form input::placeholder { color: rgba(255, 255, 255, 0.5); }
.cta-band__form input:focus { outline: none; border-color: var(--color-form-focus); box-shadow: 0 0 0 1px var(--color-form-focus); }
@media (max-width: 1023px) {
  .cta-band { grid-template-columns: 1fr; padding: var(--space-section) var(--space-xl); }
}

/* ================= 关于我们 ================= */
.timeline { position: relative; margin-top: var(--space-xxl); }
.timeline::before {
  content: "";
  position: absolute;
  left: 7px; top: 8px; bottom: 8px;
  width: 1px;
  background: var(--color-hairline);
}
.timeline__item { position: relative; padding: 0 0 var(--space-section) 40px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__item::before {
  content: "";
  position: absolute;
  left: 0; top: 6px;
  width: 15px; height: 15px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-ink);
  background: var(--color-canvas);
}
.timeline__year {
  font-family: var(--font-mono);
  font-size: var(--fs-mono-label);
  letter-spacing: 0.28px;
  color: var(--color-primary);
}
.timeline__item h3 { margin-top: var(--space-xs); font-size: var(--fs-feature-heading); }
.timeline__item p { margin-top: var(--space-sm); color: var(--color-body-muted); max-width: 64ch; }

.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.value-card {
  border-top: 1px solid var(--color-hairline);
  padding-top: var(--space-xl);
}
.value-card h3 { font-size: var(--fs-card-heading); letter-spacing: -0.01em; margin-top: var(--space-lg); }
.value-card p { margin-top: var(--space-md); color: var(--color-body-muted); }
@media (max-width: 767px) { .value-grid { grid-template-columns: 1fr; } }

/* 资质证书 */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-xl); }
.cert-card {
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-sm);
  padding: var(--space-xl);
  text-align: center;
}
.cert-card .icon-line { margin: 0 auto; width: 36px; height: 36px; stroke: var(--color-slate); }
.cert-card h3 { margin-top: var(--space-lg); font-size: var(--fs-body); }
.cert-card p { margin-top: var(--space-xs); font-size: var(--fs-micro); color: var(--color-muted); }
@media (max-width: 767px) { .cert-grid { grid-template-columns: 1fr 1fr; } }

/* ================= 解决方案 ================= */
.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.solution-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-canvas);
  border: 1px solid var(--color-card-border);
  display: flex;
  flex-direction: column;
  transition: border-color .18s ease;
}
.solution-card:hover { border-color: var(--color-ink); }
.solution-card__media { aspect-ratio: 16 / 9; background: var(--color-soft-stone); overflow: hidden; }
.solution-card__media img { width: 100%; height: 100%; object-fit: cover; }
.solution-card__body { padding: var(--space-xl); display: flex; flex-direction: column; gap: var(--space-md); flex: 1; }
.solution-card__body p { color: var(--color-body-muted); flex: 1; }
@media (max-width: 1023px) { .solution-grid { grid-template-columns: 1fr; } }

/* 深色能力带（dark-feature-band） */
.feature-band {
  background: var(--color-deep-green);
  color: var(--color-cta-on);
  border-radius: var(--radius-lg);
  padding: var(--space-section) var(--space-xxl);
}
.feature-band__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xxl); margin-top: var(--space-xxl); }
.feature-band__item { border-top: 1px solid rgba(255, 255, 255, 0.2); padding-top: var(--space-lg); }
.feature-band__item h3 { font-size: var(--fs-feature-heading); margin-bottom: var(--space-sm); }
.feature-band__item p { font-size: var(--fs-caption); color: rgba(255, 255, 255, 0.72); }
@media (max-width: 767px) { .feature-band { padding: var(--space-section) var(--space-lg); } .feature-band__grid { grid-template-columns: 1fr; } }

/* 方案流程（痛点→方案→优势→场景） */
.flow-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-xl); counter-reset: step; }
.flow-step { border-top: 1px solid var(--color-hairline); padding-top: var(--space-lg); }
.flow-step::before {
  counter-increment: step;
  content: "0" counter(step);
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  letter-spacing: 0.28px;
  color: var(--color-primary);
}
.flow-step h3 { margin-top: var(--space-sm); font-size: var(--fs-feature-heading); }
.flow-step p { margin-top: var(--space-sm); font-size: var(--fs-caption); color: var(--color-body-muted); }
@media (max-width: 767px) { .flow-steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .flow-steps { grid-template-columns: 1fr; } }

/* FAQ */
.faq-list { border-top: 1px solid var(--color-hairline); }
.faq-item { border-bottom: 1px solid var(--color-hairline); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-lg);
  padding-block: var(--space-xl);
  font-size: var(--fs-feature-heading);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .plus { position: relative; width: 16px; height: 16px; flex-shrink: 0; }
.faq-item summary .plus::before, .faq-item summary .plus::after {
  content: "";
  position: absolute;
  inset: 50% 0 auto 0;
  height: 1px;
  background: var(--color-ink);
}
.faq-item summary .plus::after { transform: rotate(90deg); transition: transform .2s ease; }
.faq-item[open] summary .plus::after { transform: rotate(0); }
.faq-item__body { padding: 0 0 var(--space-xl); max-width: 76ch; color: var(--color-body-muted); }

/* ================= 产品中心 ================= */
.product-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-section);
  align-items: center;
}
.product-hero__media { border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 4 / 3; background: var(--color-soft-stone); }
.product-hero__media img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 1023px) { .product-hero { grid-template-columns: 1fr; } }

.spec-table { width: 100%; border-collapse: collapse; font-size: var(--fs-body); }
.spec-table caption { text-align: left; font-family: var(--font-mono); font-size: var(--fs-mono-label); letter-spacing: .28px; text-transform: uppercase; color: var(--color-slate); padding-bottom: var(--space-md); }
.spec-table th, .spec-table td { text-align: left; padding: var(--space-md) var(--space-lg); border-bottom: 1px solid var(--color-hairline); font-weight: 400; }
.spec-table th { color: var(--color-muted); width: 34%; font-size: var(--fs-caption); }

/* ================= 案例 ================= */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.case-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-card-border);
  background: var(--color-canvas);
  display: flex;
  flex-direction: column;
  transition: border-color .18s ease;
}
.case-card:hover { border-color: var(--color-ink); }
.case-card__media { aspect-ratio: 16 / 10; background: var(--color-soft-stone); overflow: hidden; }
.case-card__media img { width: 100%; height: 100%; object-fit: cover; }
.case-card__body { padding: var(--space-xl); display: flex; flex-direction: column; gap: var(--space-sm); flex: 1; }
.case-card__body .tag { font-family: var(--font-mono); font-size: var(--fs-micro); letter-spacing: .28px; text-transform: uppercase; color: var(--color-slate); }
.case-card__body h3 { font-size: var(--fs-feature-heading); line-height: 1.3; }
.case-card__body p { font-size: var(--fs-caption); color: var(--color-body-muted); flex: 1; }
@media (max-width: 1023px) { .case-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .case-grid { grid-template-columns: 1fr; } }

/* 案例指标（脱敏数据行） */
.metric-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); border-top: 1px solid var(--color-hairline); margin-top: var(--space-xxl); }
.metric-row__item { padding-top: var(--space-lg); }
.metric-row__num { font-family: var(--font-display); font-size: var(--fs-card-heading); letter-spacing: -0.02em; }
.metric-row__lbl { margin-top: var(--space-xs); font-size: var(--fs-caption); color: var(--color-muted); }
@media (max-width: 640px) { .metric-row { grid-template-columns: 1fr; gap: var(--space-lg); } }

/* ================= 新闻 ================= */
.news-tabs { display: flex; gap: var(--space-md); flex-wrap: wrap; margin-bottom: var(--space-xxl); }
.news-feature { display: grid; grid-template-columns: 1.4fr 1fr; gap: var(--space-xl); margin-bottom: var(--space-section); }
.news-feature__media { border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 16 / 9; background: var(--color-soft-stone); }
.news-feature__media img { width: 100%; height: 100%; object-fit: cover; }
.news-feature__body { display: flex; flex-direction: column; justify-content: center; gap: var(--space-md); }
.news-feature__body h3 { font-size: var(--fs-card-heading); line-height: 1.2; letter-spacing: -0.01em; }
.news-feature__body p { color: var(--color-body-muted); }
@media (max-width: 1023px) { .news-feature { grid-template-columns: 1fr; } }

/* 新闻详情页 */
.article-header { display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-lg); }
.article-header .chip { justify-self: start; }
.article-title { font-size: clamp(30px, 4vw, 52px); line-height: 1.2; letter-spacing: -0.02em; }
.article-meta { display: flex; gap: var(--space-lg); align-items: center; font-size: var(--fs-caption); color: var(--color-muted); }
.article-meta__src::before { content: "·"; margin-right: var(--space-lg); }
.article-lead { margin-top: var(--space-xl); font-size: var(--fs-body-lg); line-height: 1.65; color: var(--color-body-muted); max-width: 72ch; }
.article-body { max-width: 72ch; font-size: var(--fs-body-lg); line-height: 1.7; color: var(--color-ink); }
.article-body p + p { margin-top: var(--space-xl); }
.article-body h2 { font-size: var(--fs-card-heading); margin-top: calc(var(--space-section) * 0.6); margin-bottom: var(--space-lg); letter-spacing: -0.01em; }
.article-body h3 { font-size: var(--fs-feature-heading); margin-top: var(--space-xxl); margin-bottom: var(--space-md); letter-spacing: -0.01em; }
.article-body h4, .article-body h5, .article-body h6 { font-size: var(--fs-body-lg); margin-top: var(--space-xl); margin-bottom: var(--space-sm); }
.article-body ul { margin-top: var(--space-lg); display: grid; gap: var(--space-md); }
.article-body ol { margin-top: var(--space-lg); display: grid; gap: var(--space-md); list-style: none; counter-reset: md-ol; }
.article-body li { padding-left: var(--space-lg); position: relative; }
.article-body ul > li::before { content: ""; position: absolute; left: 0; top: .62em; width: 6px; height: 6px; border-radius: var(--radius-full); background: var(--color-primary); }
.article-body ol > li { counter-increment: md-ol; padding-left: var(--space-xl); }
.article-body ol > li::before { content: counter(md-ol) "."; position: absolute; left: 0; top: .1em; font-family: var(--font-mono); font-size: var(--fs-caption); color: var(--color-primary); }
.article-body a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--color-primary-active); }
.article-body strong { font-weight: 600; }
.article-body del { color: var(--color-muted); }
.article-body code { font-family: var(--font-mono); font-size: .88em; background: var(--color-pale-blue); padding: 2px 6px; border-radius: var(--radius-xs); }
.article-body pre { margin-top: var(--space-xl); padding: var(--space-lg) var(--space-xl); background: var(--color-soft-stone); border-radius: var(--radius-sm); overflow-x: auto; }
.article-body pre code { background: none; padding: 0; font-size: var(--fs-caption); line-height: 1.6; white-space: pre; }
.article-body blockquote { margin-top: var(--space-xl); padding-left: var(--space-lg); border-left: 3px solid var(--color-primary); color: var(--color-body-muted); }
.article-body hr { margin: var(--space-xxl) 0; border: none; border-top: 1px solid var(--color-hairline); }
.article-body img { max-width: 100%; height: auto; border-radius: var(--radius-sm); margin: var(--space-lg) 0; }
.article-body table { margin-top: var(--space-xl); border-collapse: collapse; width: 100%; font-size: var(--fs-body); }
.article-body th, .article-body td { border: 1px solid var(--color-hairline); padding: var(--space-sm) var(--space-md); text-align: left; }
.article-body th { background: var(--color-pale-blue); font-family: var(--font-mono); font-size: var(--fs-caption); }
.article-body > :first-child { margin-top: 0; }

/* 分页 */
.pager { display: flex; gap: var(--space-sm); justify-content: center; margin-top: var(--space-section); }
.pager a, .pager span {
  min-width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-sm);
  font-size: var(--fs-caption);
  color: var(--color-body-muted);
}
.pager a:hover { border-color: var(--color-ink); color: var(--color-ink); }
.pager .current { background: var(--color-cta); border-color: var(--color-cta); color: #fff; }

/* ================= 联系我们 ================= */
.contact-grid { display: grid; grid-template-columns: 1fr 1.25fr; gap: var(--space-section); align-items: start; }
.contact-info { display: grid; gap: var(--space-xxl); }
.contact-info__item h3 {
  font-family: var(--font-mono);
  font-size: var(--fs-mono-label);
  letter-spacing: .28px;
  text-transform: uppercase;
  color: var(--color-slate);
  margin-bottom: var(--space-sm);
}
.contact-info__item p, .contact-info__item a { font-size: var(--fs-body-lg); }
.contact-info__item a:hover { color: var(--color-primary); }
.map-frame {
  margin-top: var(--space-xxl);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-hairline);
  aspect-ratio: 21 / 9;
  background: var(--color-soft-stone);
  position: relative;
}
.map-frame iframe { width: 100%; height: 100%; border: 0; }
.map-frame__map { position: absolute; inset: 0; }
.map-frame__map .leaflet-container { background: var(--color-soft-stone); font: inherit; }
.map-frame__fallback {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: var(--space-md);
  color: var(--color-body-muted); font-size: var(--fs-caption);
}
@media (max-width: 1023px) { .contact-grid { grid-template-columns: 1fr; } }

/* ================= 404 ================= */
.notfound { text-align: center; padding-block: calc(var(--space-section) * 1.4); }
.notfound__code {
  font-family: var(--font-display);
  font-size: clamp(96px, 18vw, 200px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--color-cta);
}
.notfound p { margin-top: var(--space-xl); color: var(--color-body-muted); font-size: var(--fs-body-lg); }
.notfound__links { margin-top: var(--space-xxl); display: flex; gap: var(--space-xl); justify-content: center; flex-wrap: wrap; }

/* ================= 入场动效（reduced-motion 已在 base 降级） ================= */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }