/* ============================================================
   锦渚浮桥 · components.css（下）
   卡片 / 数据条 / 页首 / 图库 / CTA / 页脚 / 表单 / 响应式
   ============================================================ */

/* ---------- Video (混合横竖方向视频通用方案) ----------
   原理：不写死尺寸，max-height 限制高度不超过视口75%；
   JS 在 loadedmetadata 后注入 aspect-ratio，
   浏览器据此按原始比例自动计算宽高，横竖视频均完整显示、不出屏、不变形。 */
.video-wrap {
  background: #000; border-radius: var(--radius);
  overflow: hidden; margin-bottom: 16px;
}
.video-wrap video {
  display: block;
  width: auto; height: auto;
  max-width: 100%; max-height: 75vh;
  margin: 0 auto; object-fit: contain; background: #000;
}

/* ---------- Data strip ---------- */
.datastrip { background: var(--grad-brand); color: #fff; }
.datastrip__inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 44px 0; }
.datastrip__item { text-align: center; position: relative; }
.datastrip__item + .datastrip__item::before {
  content: ""; position: absolute; left: -12px; top: 50%; transform: translateY(-50%);
  width: 1px; height: 52px; background: rgba(255,255,255,.18);
}
.datastrip__num { font-family: var(--font-num); font-size: 2.6rem; font-weight: 800; line-height: 1.1; }
.datastrip__num small { font-size: 1.1rem; font-weight: 600; margin-left: 2px; }
.datastrip__label { font-size: .92rem; color: #cfe2ee; margin-top: 6px; letter-spacing: .05em; }

/* ---------- Cards: scene (应用场景) ---------- */
.scene-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.scene-card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  aspect-ratio: 4 / 5; box-shadow: var(--shadow-sm);
  transition: all var(--transition); cursor: pointer;
}
.scene-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.scene-card__img { position: absolute; inset: 0; background-size: cover; background-position: center; transition: transform .6s ease; }
.scene-card:hover .scene-card__img { transform: scale(1.08); }
.scene-card__veil {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(6,45,69,0) 35%, rgba(6,45,69,.88) 100%);
}
.scene-card__body { position: absolute; left: 0; right: 0; bottom: 0; padding: 20px 18px; color: #fff; }
.scene-card__no { font-family: var(--font-num); font-size: .8rem; color: var(--accent-400); letter-spacing: .2em; margin-bottom: 6px; }
.scene-card__title { font-size: 1.12rem; font-weight: 700; color: #fff; }
.scene-card__desc { font-size: .8rem; color: #b9cddb; margin-top: 4px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.scene-card__more { display: inline-flex; align-items: center; gap: 6px; font-size: .82rem; color: var(--accent-400); margin-top: 10px; opacity: 0; transform: translateY(6px); transition: all var(--transition); }
.scene-card:hover .scene-card__more { opacity: 1; transform: translateY(0); }

/* ---------- Cards: project (项目案例) ---------- */
.project-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.project-card {
  border-radius: var(--radius-lg); overflow: hidden; background: #fff;
  box-shadow: var(--shadow-sm); transition: all var(--transition);
}
.project-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.project-card__media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.project-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.project-card:hover .project-card__media img { transform: scale(1.07); }
.project-card__tag {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  background: rgba(6,45,69,.78); color: var(--accent-400);
  font-size: .74rem; padding: 5px 12px; border-radius: 30px; letter-spacing: .08em;
  backdrop-filter: blur(4px);
}
.project-card__body { padding: 20px 22px 24px; }
.project-card__title { font-size: 1.1rem; font-weight: 700; margin-bottom: 6px; }
.project-card__desc { font-size: .88rem; color: var(--ink-500); line-height: 1.6; }
.project-card__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.project-card__tags span {
  font-size: .74rem; color: var(--brand-600); background: var(--brand-50);
  padding: 3px 10px; border-radius: 30px;
}

/* ---------- Cards: product (产品体系) ---------- */
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.product-card {
  display: flex; gap: 24px; background: #fff; border-radius: var(--radius-lg);
  padding: 28px; box-shadow: var(--shadow-sm); border: 1px solid var(--line);
  transition: all var(--transition);
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--brand-200); }
.product-card__icon {
  flex-shrink: 0; width: 64px; height: 64px; border-radius: 16px;
  background: var(--brand-50); color: var(--brand-600);
  display: flex; align-items: center; justify-content: center; font-size: 1.7rem;
}
.product-card__body h3 { font-size: 1.2rem; margin-bottom: 8px; }
.product-card__body p { font-size: .92rem; color: var(--ink-500); }
.product-card__points { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.product-card__points span {
  font-size: .76rem; color: var(--brand-700); background: var(--brand-50);
  padding: 4px 12px; border-radius: 30px; border: 1px solid var(--brand-100);
}

/* ---------- Cards: news (新闻) ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  background: #fff; border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-sm); transition: all var(--transition); border: 1px solid var(--line);
}
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.news-card__media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.news-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.news-card:hover .news-card__media img { transform: scale(1.06); }
.news-card__date {
  position: absolute; left: 16px; bottom: -16px; z-index: 2;
  background: var(--grad-brand); color: #fff; border-radius: 8px;
  padding: 8px 14px; text-align: center; line-height: 1.1; box-shadow: var(--shadow-md);
}
.news-card__date b { display: block; font-family: var(--font-num); font-size: 1.2rem; }
.news-card__date span { font-size: .68rem; opacity: .85; }
.news-card__body { padding: 28px 22px 22px; }
.news-card__title { font-size: 1.02rem; font-weight: 700; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card__title:hover { color: var(--brand-600); }
.news-card__excerpt { font-size: .85rem; color: var(--ink-500); margin-top: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card__more { display: inline-flex; align-items: center; gap: 6px; font-size: .84rem; color: var(--brand-600); margin-top: 14px; font-weight: 600; }

/* ---------- Page hero (内页首) ---------- */
.page-hero {
  position: relative; padding: 96px 0 88px; color: #fff;
  background-size: cover; background-position: center;
}
.page-hero::before { content: ""; position: absolute; inset: 0; background: var(--grad-hero); }
.page-hero__inner { position: relative; z-index: 2; }
.page-hero__crumb { font-size: .86rem; color: #b9cddb; margin-bottom: 16px; display: flex; gap: 8px; align-items: center; }
.page-hero__crumb a:hover { color: var(--accent-400); }
.page-hero__crumb .sep { color: rgba(255,255,255,.4); }
.page-hero h1 { color: #fff; font-size: clamp(1.9rem, 3.6vw, 2.7rem); }
.page-hero p { color: #cfe2ee; max-width: 620px; margin-top: 14px; font-size: 1.02rem; }

/* ---------- Breadcrumbs (页内) ---------- */
.crumbs { padding: 22px 0; border-bottom: 1px solid var(--line); background: #fff; font-size: .88rem; color: var(--ink-500); }
.crumbs a:hover { color: var(--brand-600); }
.crumbs .sep { margin: 0 8px; color: var(--ink-400); }

/* ---------- Gallery ---------- */
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.gallery__item { position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 4 / 3; cursor: zoom-in; }
.gallery__item img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.gallery__item:hover img { transform: scale(1.06); }
.gallery__item::after {
  content: "＋"; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  background: rgba(6,45,69,.35); color: #fff; font-size: 2rem; opacity: 0; transition: opacity var(--transition);
  pointer-events: none;
}
.gallery__item:hover::after { opacity: 1; }

/* Lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 300; background: rgba(4,22,34,.92);
  display: flex; align-items: center; justify-content: center; padding: 40px;
  opacity: 0; visibility: hidden; transition: all .3s;
}
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox img { max-width: min(92vw, 1200px); max-height: 86vh; object-fit: contain; border-radius: 8px; box-shadow: var(--shadow-lg); }
.lightbox__close { position: absolute; top: 24px; right: 30px; color: #fff; font-size: 2.4rem; line-height: 1; opacity: .8; }
.lightbox__close:hover { opacity: 1; }
.lightbox__cap { position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%); color: #cfe2ee; font-size: .9rem; }

/* ---------- Client wall ---------- */
.client-wall { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.client-wall__item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 16px; text-align: center; font-size: .95rem; font-weight: 600;
  color: var(--ink-700); transition: all var(--transition); display: flex; align-items: center; justify-content: center; min-height: 72px;
}
.client-wall__item:hover { border-color: var(--brand-300); color: var(--brand-600); box-shadow: var(--shadow-md); transform: translateY(-3px); }

/* ---------- CTA band ---------- */
.cta-band { position: relative; padding: 76px 0; background-size: cover; background-position: center; color: #fff; overflow: hidden; }
.cta-band::before { content: ""; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(6,45,69,.95), rgba(10,74,111,.82)); }
.cta-band__inner { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; font-size: clamp(1.4rem, 2.6vw, 2rem); }
.cta-band p { color: #b8cbd8; margin-top: 8px; }
.cta-band__btns { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.footer { background: var(--brand-950); color: #9fbccd; font-size: .92rem; }
.footer__top { padding: 64px 0 48px; display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 40px; }
.footer__brand p { margin-top: 16px; line-height: 1.9; color: #7fa3b8; font-size: .9rem; }
.footer__col h4 { color: #fff; font-size: 1.02rem; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer__col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 28px; height: 2px; background: var(--accent-500); }
.footer__col a { display: block; padding: 5px 0; color: #8ba9bd; }
.footer__col a:hover { color: var(--accent-400); }
.footer__contact li { display: flex; gap: 12px; padding: 8px 0; align-items: flex-start; }
.footer__contact .ic { color: var(--accent-400); flex-shrink: 0; }
.footer__bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 22px 0; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: .84rem; color: #6d8ba0; }

/* ---------- Back to top ---------- */
.backtop {
  position: fixed; right: 26px; bottom: 30px; z-index: 150;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--grad-brand); color: #fff; font-size: 1.1rem;
  box-shadow: var(--shadow-md); opacity: 0; visibility: hidden;
  transform: translateY(14px); transition: all var(--transition);
}
.backtop.show { opacity: 1; visibility: visible; transform: translateY(0); }
.backtop:hover { background: var(--grad-gold); }

/* ---------- Forms ---------- */
.form { display: grid; gap: 18px; grid-template-columns: minmax(0, 1fr); }
.form__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.form__field { min-width: 0; }
.form__field label { display: block; font-size: .88rem; font-weight: 600; color: var(--ink-900); margin-bottom: 7px; }
.form__field input, .form__field textarea, .form__field select {
  width: 100%; padding: 13px 16px; border: 1.5px solid var(--line); border-radius: var(--radius);
  background: #fff; color: var(--ink-900); transition: border-color var(--transition);
}
.form__field input:focus, .form__field textarea:focus, .form__field select:focus { outline: none; border-color: var(--brand-500); }
.form__field textarea { resize: vertical; min-height: 130px; }

/* ---------- Section dividers / misc ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split__media { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); aspect-ratio: 4 / 3; }
.split__media img { width: 100%; height: 100%; object-fit: cover; }
.split__media .badge {
  position: absolute; left: 18px; bottom: 18px; background: rgba(6,45,69,.82); color: var(--accent-400);
  padding: 8px 14px; border-radius: 14px; font-size: .82rem; line-height: 1.45; max-width: calc(100% - 36px);
  backdrop-filter: blur(4px);
}
html[lang="en"] .split__media .badge { font-size: .74rem; }
.split__body h2 { margin-bottom: 16px; }
.split__body p { color: var(--ink-500); line-height: 1.9; margin-bottom: 14px; }
.check-list { margin-top: 18px; display: grid; gap: 10px; }
.check-list li { display: flex; gap: 10px; align-items: flex-start; font-size: .95rem; }
.check-list .tick { color: var(--brand-600); font-weight: 700; flex-shrink: 0; }

.flow-steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; counter-reset: step; }
.flow-step {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 26px 16px; text-align: center; position: relative; transition: all var(--transition);
}
.flow-step:hover { border-color: var(--brand-300); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.flow-step__no {
  width: 42px; height: 42px; margin: 0 auto 14px; border-radius: 50%;
  background: var(--grad-brand); color: #fff; font-family: var(--font-num); font-weight: 700;
  display: flex; align-items: center; justify-content: center; font-size: 1.05rem;
}
.flow-step h4 { font-size: .98rem; }
.flow-step p { font-size: .78rem; color: var(--ink-400); margin-top: 6px; line-height: 1.6; }
.flow-step + .flow-step::before {
  content: "›"; position: absolute; left: -14px; top: 50%; transform: translateY(-50%);
  color: var(--brand-300); font-size: 1.4rem; z-index: 2;
}

.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.value-item { text-align: center; padding: 34px 22px; background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); border: 1px solid var(--line); transition: all var(--transition); }
.value-item:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.value-item__icon {
  width: 66px; height: 66px; margin: 0 auto 18px; border-radius: 18px;
  background: var(--brand-50); color: var(--brand-600);
  display: flex; align-items: center; justify-content: center; font-size: 1.8rem;
}
.value-item h3 { font-size: 1.1rem; margin-bottom: 8px; }
.value-item p { font-size: .86rem; color: var(--ink-500); }

/* ---------- Scroll reveal ---------- */
[data-reveal] { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
[data-reveal].revealed { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 1200px) {
  .nav, .header__cta .btn { display: none; }
  .nav-toggle { display: block; }
  .header__cta { margin-left: auto; }
  .nav__list { display: none; }
}

@media (max-width: 1024px) {
  .scene-grid { grid-template-columns: repeat(3, 1fr); }
  .project-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .flow-steps { grid-template-columns: repeat(3, 1fr); }
  .value-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .scene-grid { grid-template-columns: repeat(2, 1fr); }
  .project-grid, .news-grid, .product-grid, .split, .form__row { grid-template-columns: minmax(0, 1fr); }
  .client-wall { grid-template-columns: repeat(2, 1fr); }
  .datastrip__inner { grid-template-columns: repeat(2, 1fr); gap: 28px 12px; }
  .datastrip__item + .datastrip__item::before { display: none; }
  .hero { height: clamp(480px, 88vh, 620px); }
  .hero__arrows { display: none; }
  .hero__scroll { display: none; }
  .hero__cta { position: static; left: auto; bottom: auto; }
  html[lang="en"] .hero__cta { gap: 10px; }
  html[lang="en"] .hero__cta .btn--lg { padding: 11px 16px; font-size: .8rem; }
  .hero__meta { gap: 16px; }
  .hero__meta .m b { font-size: 1.3rem; }
  .hero__meta .m span { font-size: .72rem; }
  html[lang="en"] .hero__meta { gap: 8px; }
  html[lang="en"] .hero__meta .m { white-space: nowrap; }
  html[lang="en"] .hero__meta .m b { font-size: 1.1rem; }
  html[lang="en"] .hero__meta .m span { font-size: .62rem; }
  html[lang="en"] .hero__eyebrow { letter-spacing: .04em; font-size: .78rem; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
  .footer__brand p { margin-top: 12px; font-size: .86rem; }
  .footer__col h4 { margin-bottom: 12px; padding-bottom: 8px; font-size: .95rem; }
  .footer__col a { padding: 4px 0; font-size: .88rem; }
  .footer__col:last-child { grid-column: 1 / -1; }
  .topbar__slogan { display: none; }
  .topbar__inner { justify-content: flex-start; }
  .topbar__right { gap: 12px; flex: 1; }
  .lang-btn { white-space: nowrap; flex-shrink: 0; }
  .topbar__tel { white-space: nowrap; flex-shrink: 0; }
  .topbar__right > span[data-i18n] { margin-left: auto; white-space: nowrap; }
  html[lang="en"] .topbar__right > span[data-i18n] { font-size: .72rem; }
  html[lang="en"] .topbar__tel { font-size: .8rem; }
  .flow-steps { grid-template-columns: 1fr 1fr; }
  .value-grid { grid-template-columns: 1fr 1fr; }
  .split { gap: 32px; }
  .cta-band__inner { flex-direction: column; align-items: flex-start; gap: 22px; }
  .cta-band__btns { flex-direction: column; width: 100%; }
  .cta-band__btns .btn { width: 100%; padding: 11px 22px; font-size: .88rem; white-space: nowrap; }
}

@media (max-width: 480px) {
  .scene-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .flow-steps { grid-template-columns: 1fr; }
  .value-grid { grid-template-columns: 1fr; }
  .hero__content { padding-bottom: 120px; }
  .hero__cta { bottom: 80px; }
  .hero__cta .btn--lg { padding: 11px 18px; font-size: .88rem; }
}
@media (max-width: 380px) {
  .logo__text span { display: none; }
  .logo__text strong { font-size: 1.15rem; }
  .logo__mark { width: 40px; height: 40px; font-size: 1.15rem; }
}