/* ============================================================
   九竺科技 · 首页
   ============================================================ */

/* ---------------- 首屏轮播 ---------------- */
.fe-hero {
  position: relative;
  height: min(88vh, 780px);
  min-height: 460px;
  margin-top: calc(-1 * var(--fe-header-h));
  padding-top: var(--fe-header-h);
  background: var(--fe-ink-900);
  overflow: hidden;
}

.fe-hero .swiper,
.fe-hero .swiper-wrapper,
.fe-hero .swiper-slide {
  height: 100%;
}

.fe-hero__slide {
  position: relative;
  height: 100%;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
}

/* 双层压暗：保证白字在任何底图上都清晰。
   注意：swiper-*.jpg 底图自带烘焙的中文宣传字，需靠较重的左侧遮罩压住 */
.fe-hero__slide::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    rgba(8, 37, 28, 0.95) 0%,
    rgba(8, 37, 28, 0.84) 34%,
    rgba(8, 37, 28, 0.5) 62%,
    rgba(8, 37, 28, 0.22) 100%
  );
}

.fe-hero__slide::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 140px;
  background: linear-gradient(to top, rgba(8, 37, 28, 0.7), transparent);
}

.fe-hero__copy {
  position: relative;
  z-index: 2;
  max-width: 720px;
  color: #fff;
}

.fe-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: var(--fe-fs-eyebrow);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--fe-gold-400);
  margin-bottom: var(--fe-gap-4);
}

.fe-hero__eyebrow::before {
  content: "";
  width: 40px;
  height: 1px;
  background: var(--fe-gold-500);
}

.fe-hero__title {
  font-family: var(--fe-serif);
  font-size: var(--fe-fs-h1);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: 0.06em;
  margin: 0 0 var(--fe-gap-4);
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.35);
}

.fe-hero__text {
  font-size: var(--fe-fs-lg);
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.82);
  max-width: 56ch;
  margin: 0 0 var(--fe-gap-6);
}

.fe-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--fe-gap-3);
}

/* 轮播控件 */
.fe-hero .swiper-pagination {
  bottom: 28px !important;
}

.fe-hero .swiper-pagination-bullet {
  width: 30px;
  height: 3px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.4);
  opacity: 1;
  transition: width 0.35s var(--fe-ease), background-color 0.35s var(--fe-ease);
}

.fe-hero .swiper-pagination-bullet-active {
  width: 54px;
  background: var(--fe-gold-500);
}

.fe-hero .swiper-button-prev,
.fe-hero .swiper-button-next {
  width: 52px;
  height: 52px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  background: rgba(8, 37, 28, 0.25);
  color: #fff;
  opacity: 0;
  transition: opacity 0.35s var(--fe-ease), background-color 0.3s var(--fe-ease);
}

.fe-hero .swiper-button-prev::after,
.fe-hero .swiper-button-next::after {
  font-size: 15px;
  font-weight: 700;
}

.fe-hero:hover .swiper-button-prev,
.fe-hero:hover .swiper-button-next {
  opacity: 1;
}

.fe-hero .swiper-button-prev:hover,
.fe-hero .swiper-button-next:hover {
  background: var(--fe-gold-500);
  border-color: var(--fe-gold-500);
  color: var(--fe-ink-900);
}

/* ---------------- 数据带 ---------------- */
.fe-stats {
  position: relative;
  z-index: 5;
  margin-top: -64px;
}

.fe-stats__inner {
  background: var(--fe-surface);
  border: 1px solid var(--fe-line);
  border-radius: var(--fe-radius-l);
  box-shadow: var(--fe-shadow-l);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.fe-stat {
  padding: clamp(22px, 3vw, 38px) var(--fe-gap-4);
  text-align: center;
  position: relative;
}

.fe-stat + .fe-stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22%;
  height: 56%;
  width: 1px;
  background: var(--fe-line);
}

.fe-stat__num {
  font-family: var(--fe-serif);
  font-size: var(--fe-fs-num);
  font-weight: 700;
  line-height: 1;
  color: var(--fe-ink-800);
  display: block;
}

.fe-stat__unit {
  font-size: var(--fe-fs-base);
  font-weight: 500;
  color: var(--fe-gold-600);
  margin-left: 3px;
}

.fe-stat__label {
  display: block;
  margin-top: 10px;
  font-size: var(--fe-fs-sm);
  letter-spacing: 0.08em;
  color: var(--fe-text-2);
}

/* ---------------- 集团简介 ---------------- */
.fe-intro__grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
}

.fe-intro__figure {
  position: relative;
  border-radius: var(--fe-radius-l);
  overflow: hidden;
  box-shadow: var(--fe-shadow-l);
}

.fe-intro__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 6s var(--fe-ease);
}

.fe-intro__figure:hover img {
  transform: scale(1.045);
}

/* 金线勾边，增加精致度 */
.fe-intro__figure::after {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(201, 168, 118, 0.5);
  border-radius: var(--fe-radius-m);
  pointer-events: none;
}

.fe-intro__motto {
  font-family: var(--fe-serif);
  font-size: var(--fe-fs-h3);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--fe-ink-800);
  margin: var(--fe-gap-4) 0 var(--fe-gap-2);
}

.fe-intro__slogan {
  font-family: var(--fe-serif);
  font-size: var(--fe-fs-lg);
  color: var(--fe-gold-600);
  letter-spacing: 0.06em;
  margin: 0 0 var(--fe-gap-5);
}

.fe-intro__text {
  font-size: var(--fe-fs-base);
  line-height: 2;
  color: var(--fe-text-2);
  text-align: justify;
  margin: 0 0 var(--fe-gap-6);
}

/* ---------------- 三大能力 ---------------- */
.fe-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--fe-gap-5);
}

.fe-pillar {
  background: var(--fe-surface);
  border: 1px solid var(--fe-line);
  border-radius: var(--fe-radius-l);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.5s var(--fe-ease), box-shadow 0.5s var(--fe-ease),
    border-color 0.5s var(--fe-ease);
}

.fe-pillar:hover {
  transform: translateY(-8px);
  box-shadow: var(--fe-shadow-l);
  border-color: rgba(201, 168, 118, 0.45);
}

.fe-pillar__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--fe-paper-2);
}

.fe-pillar__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--fe-ease);
}

.fe-pillar:hover .fe-pillar__media img {
  transform: scale(1.07);
}

.fe-pillar__no {
  position: absolute;
  left: 16px;
  top: 14px;
  font-family: var(--fe-serif);
  font-size: var(--fe-fs-xl);
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.08em;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.fe-pillar__body {
  padding: clamp(20px, 2.4vw, 30px);
  display: flex;
  flex-direction: column;
  gap: var(--fe-gap-3);
  flex: 1;
}

.fe-pillar__title {
  font-family: var(--fe-serif);
  font-size: var(--fe-fs-h3);
  font-weight: 700;
  color: var(--fe-ink-800);
  margin: 0;
  letter-spacing: 0.05em;
}

.fe-pillar__lead {
  font-size: var(--fe-fs-base);
  font-weight: 600;
  line-height: 1.7;
  color: var(--fe-text-1);
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--fe-gold-500);
}

.fe-pillar__detail {
  font-size: var(--fe-fs-sm);
  line-height: 1.95;
  color: var(--fe-text-2);
  margin: 0;
}

/* ---------------- 战略布局 ---------------- */
.fe-strategy {
  background: var(--fe-ink-900);
  color: rgba(255, 255, 255, 0.72);
  position: relative;
  overflow: hidden;
}

.fe-strategy::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -120px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 168, 118, 0.14), transparent 68%);
  pointer-events: none;
}

.fe-strategy .fe-heading__title {
  color: #fff;
}

.fe-strategy__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 3vw, 40px);
  counter-reset: st;
}

.fe-strategy__item {
  position: relative;
  padding: var(--fe-gap-5) var(--fe-gap-5) var(--fe-gap-6);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--fe-radius-l);
  background: rgba(255, 255, 255, 0.035);
  transition: background-color 0.4s var(--fe-ease), border-color 0.4s var(--fe-ease);
}

.fe-strategy__item:hover {
  background: rgba(255, 255, 255, 0.075);
  border-color: rgba(201, 168, 118, 0.5);
}

.fe-strategy__idx {
  display: block;
  font-family: var(--fe-serif);
  font-size: var(--fe-fs-xl);
  font-weight: 700;
  color: var(--fe-gold-500);
  margin-bottom: var(--fe-gap-3);
  letter-spacing: 0.06em;
}

.fe-strategy__title {
  font-family: var(--fe-serif);
  font-size: var(--fe-fs-h3);
  font-weight: 700;
  color: #fff;
  margin: 0 0 var(--fe-gap-3);
  letter-spacing: 0.06em;
}

.fe-strategy__text {
  font-size: var(--fe-fs-sm);
  line-height: 1.95;
  color: rgba(255, 255, 255, 0.66);
  margin: 0;
}

/* ---------------- 专家团队 ---------------- */
.fe-experts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--fe-gap-5);
}

.fe-expert {
  display: flex;
  gap: var(--fe-gap-4);
  padding: var(--fe-gap-4);
  background: var(--fe-surface);
  border: 1px solid var(--fe-line);
  border-radius: var(--fe-radius-l);
  transition: transform 0.45s var(--fe-ease), box-shadow 0.45s var(--fe-ease);
}

.fe-expert:hover {
  transform: translateY(-5px);
  box-shadow: var(--fe-shadow-m);
}

.fe-expert__photo {
  flex: none;
  width: 96px;
  height: 126px;
  border-radius: var(--fe-radius-m);
  overflow: hidden;
  background: var(--fe-paper-2);
}

.fe-expert__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.fe-expert__body {
  min-width: 0;
}

.fe-expert__name {
  font-family: var(--fe-serif);
  font-size: var(--fe-fs-xl);
  font-weight: 700;
  color: var(--fe-ink-800);
  margin: 0 0 2px;
  letter-spacing: 0.05em;
}

.fe-expert__role {
  display: inline-block;
  font-size: var(--fe-fs-eyebrow);
  letter-spacing: 0.14em;
  color: var(--fe-gold-600);
  background: rgba(201, 168, 118, 0.12);
  padding: 3px 9px;
  border-radius: var(--fe-radius-s);
  margin-bottom: 10px;
}

.fe-expert__desc {
  font-size: var(--fe-fs-sm);
  line-height: 1.85;
  color: var(--fe-text-2);
  margin: 0;
}

.fe-expert__desc p {
  margin: 0;
}

/* ---------------- 专利证书 ---------------- */
.fe-patents__head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 64px);
  align-items: end;
  margin-bottom: var(--fe-gap-7);
}

.fe-patents__desc {
  font-size: var(--fe-fs-base);
  line-height: 2;
  color: var(--fe-text-2);
  margin: 0;
  padding-bottom: var(--fe-gap-2);
}

.fe-certs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--fe-gap-4);
}

.fe-cert {
  position: relative;
  aspect-ratio: 3 / 4;
  background: var(--fe-surface);
  border: 1px solid var(--fe-line);
  border-radius: var(--fe-radius-m);
  padding: 8px;
  cursor: zoom-in;
  overflow: hidden;
  transition: transform 0.4s var(--fe-ease), box-shadow 0.4s var(--fe-ease);
}

.fe-cert:hover {
  transform: translateY(-6px);
  box-shadow: var(--fe-shadow-l);
}

.fe-cert img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  border-radius: var(--fe-radius-s);
}

.fe-cert__tag {
  position: absolute;
  left: 8px;
  bottom: 8px;
  padding: 3px 8px;
  font-size: var(--fe-fs-eyebrow);
  letter-spacing: 0.1em;
  color: #fff;
  background: rgba(14, 59, 46, 0.82);
  border-radius: var(--fe-radius-s);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.3s var(--fe-ease), transform 0.3s var(--fe-ease);
}

.fe-cert:hover .fe-cert__tag {
  opacity: 1;
  transform: none;
}

.fe-cert--more {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: default;
  background: var(--fe-paper-2);
  border-style: dashed;
}

.fe-cert--more:hover {
  transform: none;
  box-shadow: none;
}

.fe-cert--more .a {
  font-family: var(--fe-serif);
  font-size: var(--fe-fs-xl);
  color: var(--fe-ink-800);
  letter-spacing: 0.1em;
}

.fe-cert--more .b {
  font-size: var(--fe-fs-eyebrow);
  letter-spacing: 0.14em;
  color: var(--fe-text-3);
}

.fe-pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--fe-gap-4);
  margin-top: var(--fe-gap-6);
}

.fe-pager__btn {
  width: 40px;
  height: 40px;
  border: 1px solid var(--fe-line-strong);
  border-radius: 50%;
  background: transparent;
  color: var(--fe-ink-800);
  cursor: pointer;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.3s var(--fe-ease), color 0.3s var(--fe-ease),
    border-color 0.3s var(--fe-ease);
}

.fe-pager__btn:hover:not(:disabled) {
  background: var(--fe-ink-800);
  color: #fff;
  border-color: var(--fe-ink-800);
}

.fe-pager__btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.fe-pager__info {
  font-size: var(--fe-fs-sm);
  letter-spacing: 0.1em;
  color: var(--fe-text-2);
  min-width: 74px;
  text-align: center;
}

.fe-pager__info b {
  font-family: var(--fe-serif);
  font-size: var(--fe-fs-lg);
  color: var(--fe-ink-800);
}

/* 灯箱 */
.fe-lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(8, 37, 28, 0.94);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: fe-fade 0.25s var(--fe-ease);
}

@keyframes fe-fade {
  from {
    opacity: 0;
  }
}

.fe-lightbox img {
  max-width: min(88vw, 900px);
  max-height: 84vh;
  object-fit: contain;
  background: #fff;
  border-radius: var(--fe-radius-m);
  box-shadow: var(--fe-shadow-l);
}

.fe-lightbox__close,
.fe-lightbox__nav {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.25s var(--fe-ease);
}

.fe-lightbox__close:hover,
.fe-lightbox__nav:hover {
  background: var(--fe-gold-500);
  border-color: var(--fe-gold-500);
  color: var(--fe-ink-900);
}

.fe-lightbox__close {
  top: 24px;
  right: 24px;
  width: 46px;
  height: 46px;
  font-size: 20px;
}

.fe-lightbox__nav {
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  font-size: 17px;
}

.fe-lightbox__nav--prev {
  left: 24px;
}

.fe-lightbox__nav--next {
  right: 24px;
}

.fe-lightbox__index {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.72);
  font-size: var(--fe-fs-sm);
  letter-spacing: 0.16em;
}

/* ---------------- 产品应用情况 ---------------- */
.fe-apps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--fe-gap-4);
}

.fe-app {
  position: relative;
  border-radius: var(--fe-radius-l);
  overflow: hidden;
  aspect-ratio: 3 / 4;
  background: var(--fe-ink-800);
  box-shadow: var(--fe-shadow-s);
  transition: transform 0.5s var(--fe-ease), box-shadow 0.5s var(--fe-ease);
}

.fe-app:hover {
  transform: translateY(-6px);
  box-shadow: var(--fe-shadow-l);
}

.fe-app img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--fe-ease), filter 0.5s var(--fe-ease);
}

.fe-app:hover img {
  transform: scale(1.07);
}

/* 底部渐变承载文字，保证任何底图都可读 */
.fe-app::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(8, 37, 28, 0.95) 0%,
    rgba(8, 37, 28, 0.72) 34%,
    rgba(8, 37, 28, 0.05) 66%,
    transparent 100%
  );
}

.fe-app__body {
  position: absolute;
  inset: auto 0 0 0;
  z-index: 2;
  padding: var(--fe-gap-5) var(--fe-gap-4) var(--fe-gap-4);
  color: #fff;
}

.fe-app__title {
  font-family: var(--fe-serif);
  font-size: var(--fe-fs-xl);
  font-weight: 700;
  letter-spacing: 0.06em;
  margin: 0 0 8px;
}

.fe-app__title::after {
  content: "";
  display: block;
  width: 26px;
  height: 2px;
  background: var(--fe-gold-500);
  margin-top: 8px;
}

.fe-app__desc {
  font-size: var(--fe-fs-sm);
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.8);
  margin: 0;
  max-height: 3.6em;
  overflow: hidden;
  transition: max-height 0.5s var(--fe-ease);
}

.fe-app:hover .fe-app__desc {
  max-height: 15em;
}

/* ---------------- 媒体报道 ---------------- */
.fe-media {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--fe-gap-5);
}

.fe-media__item {
  display: flex;
  flex-direction: column;
  background: var(--fe-surface);
  border: 1px solid var(--fe-line);
  border-radius: var(--fe-radius-l);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform 0.45s var(--fe-ease), box-shadow 0.45s var(--fe-ease),
    border-color 0.45s var(--fe-ease);
}

.fe-media__item:hover {
  transform: translateY(-6px);
  box-shadow: var(--fe-shadow-l);
  border-color: rgba(201, 168, 118, 0.45);
}

.fe-media__cover {
  aspect-ratio: 16 / 9;
  background: var(--fe-paper-2);
  overflow: hidden;
}

.fe-media__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--fe-ease);
}

.fe-media__item:hover .fe-media__cover img {
  transform: scale(1.06);
}

.fe-media__body {
  padding: var(--fe-gap-5);
  display: flex;
  flex-direction: column;
  gap: var(--fe-gap-2);
  flex: 1;
}

.fe-media__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fe-fs-eyebrow);
  letter-spacing: 0.12em;
  color: var(--fe-gold-600);
}

.fe-media__meta .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--fe-line-strong);
}

.fe-media__meta .date {
  color: var(--fe-text-3);
}

.fe-media__title {
  font-family: var(--fe-serif);
  font-size: var(--fe-fs-h3);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.03em;
  color: var(--fe-ink-800);
  margin: 0;
  transition: color 0.3s var(--fe-ease);
}

.fe-media__item:hover .fe-media__title {
  color: var(--fe-ink-600);
}

.fe-media__excerpt {
  font-size: var(--fe-fs-sm);
  line-height: 1.9;
  color: var(--fe-text-2);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.fe-media__more {
  margin-top: auto;
  padding-top: var(--fe-gap-3);
  font-size: var(--fe-fs-sm);
  letter-spacing: 0.1em;
  color: var(--fe-gold-600);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ---------------- 底部 CTA ---------------- */
.fe-cta {
  position: relative;
  padding: clamp(44px, 6vw, 84px) 0;
  background: linear-gradient(120deg, var(--fe-ink-900), var(--fe-ink-700));
  color: #fff;
  overflow: hidden;
}

.fe-cta__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--fe-gap-5);
  position: relative;
  z-index: 2;
}

.fe-cta__title {
  font-family: var(--fe-serif);
  font-size: var(--fe-fs-h2);
  font-weight: 700;
  letter-spacing: 0.06em;
  margin: 0 0 6px;
}

.fe-cta__sub {
  font-size: var(--fe-fs-base);
  color: rgba(255, 255, 255, 0.66);
  margin: 0;
}

.fe-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--fe-gap-3);
}

.fe-cta__phone {
  font-family: var(--fe-serif);
  font-size: var(--fe-fs-h3);
  font-weight: 700;
  color: var(--fe-gold-500);
  letter-spacing: 0.04em;
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 1180px) {
  .fe-certs {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 980px) {
  .fe-hero {
    height: 74vh;
    min-height: 420px;
  }
  .fe-stats__inner {
    grid-template-columns: repeat(2, 1fr);
  }
  .fe-stat:nth-child(3)::before {
    display: none;
  }
  .fe-stat:nth-child(3),
  .fe-stat:nth-child(4) {
    border-top: 1px solid var(--fe-line);
  }
  .fe-stat:nth-child(2)::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    background: var(--fe-line);
  }
  .fe-intro__grid,
  .fe-patents__head {
    grid-template-columns: 1fr;
  }
  .fe-intro__figure {
    max-height: 380px;
  }
  .fe-pillars,
  .fe-strategy__list,
  .fe-experts,
  .fe-media {
    grid-template-columns: 1fr;
  }
  .fe-apps {
    grid-template-columns: repeat(2, 1fr);
  }
  .fe-experts {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .fe-experts {
    grid-template-columns: 1fr;
  }
  .fe-apps {
    grid-template-columns: 1fr;
  }
  .fe-app {
    aspect-ratio: 4 / 3;
  }
  .fe-app__desc {
    max-height: none;
  }
  .fe-certs {
    grid-template-columns: repeat(2, 1fr);
  }
  .fe-hero__text {
    font-size: var(--fe-fs-base);
  }
  .fe-cta__inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .fe-hero .swiper-button-prev,
  .fe-hero .swiper-button-next {
    display: none;
  }
  .fe-expert {
    gap: var(--fe-gap-3);
  }
  .fe-expert__photo {
    width: 78px;
    height: 104px;
  }
}

/* ---------- 活动内容 / 企业大事记 ---------- */
.fe-timeline {
  margin: 0;
  padding: 0;
  list-style: none;
}

.fe-timeline__item {
  position: relative;
  padding: 0 0 2.4rem 2.6rem;
  border-left: 1px solid var(--fe-line-strong);
}

.fe-timeline__item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.fe-timeline__dot {
  position: absolute;
  left: -5px;
  top: 0.35rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--fe-gold-500);
  box-shadow: 0 0 0 4px rgba(201, 168, 118, 0.16);
}

.fe-timeline__date {
  font-family: var(--fe-serif);
  font-size: var(--fe-fs-sm);
  letter-spacing: 0.08em;
  color: var(--fe-gold-600);
}

.fe-timeline__card {
  margin-top: 0.55rem;
  padding: 1.35rem 1.6rem;
  background: var(--fe-surface);
  border: 1px solid var(--fe-line);
  border-radius: var(--fe-radius-m);
  transition: box-shadow 0.4s var(--fe-ease), border-color 0.4s var(--fe-ease);
}

.fe-timeline__card:hover {
  border-color: var(--fe-gold-400);
  box-shadow: var(--fe-shadow-m);
}

.fe-timeline__kind {
  display: inline-block;
  padding: 0.2rem 0.62rem;
  font-size: var(--fe-fs-eyebrow);
  letter-spacing: 0.06em;
  color: var(--fe-ink-800);
  background: rgba(201, 168, 118, 0.18);
  border-radius: var(--fe-radius-s);
}

.fe-timeline__title {
  margin: 0.7rem 0 0.5rem;
  font-family: var(--fe-serif);
  font-size: var(--fe-fs-lg);
  font-weight: 600;
  line-height: 1.45;
  color: var(--fe-text-1);
}

.fe-timeline__desc {
  margin: 0;
  font-size: var(--fe-fs-sm);
  line-height: 1.85;
  color: var(--fe-text-2);
}

.fe-timeline__src {
  display: inline-block;
  margin-top: 0.7rem;
  font-size: var(--fe-fs-eyebrow);
  letter-spacing: 0.04em;
  color: var(--fe-gold-600);
  text-decoration: none;
}

.fe-timeline__src:hover {
  color: var(--fe-ink-800);
  text-decoration: underline;
}

@media (max-width: 720px) {
  .fe-timeline__item {
    padding-left: 1.6rem;
    padding-bottom: 1.9rem;
  }
  .fe-timeline__card {
    padding: 1.1rem 1.15rem;
  }
  .fe-timeline__title {
    font-size: var(--fe-fs-base);
  }
}