/* =============================================================
   components.css — 组件库
   ============================================================= */

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  font-size: 15.5px;
  font-weight: var(--fw-semibold);
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  white-space: nowrap;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
    background-color var(--dur) var(--ease), color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn svg { width: 17px; height: 17px; }

.btn--primary {
  background: var(--grad-brand);
  color: #fff;
  box-shadow: 0 8px 20px rgba(30, 90, 214, .26);
}
.btn--primary:hover { color: #fff; box-shadow: 0 12px 28px rgba(30, 90, 214, .34); }

.btn--gold {
  background: var(--grad-gold);
  color: #4A3209;
  box-shadow: 0 8px 20px rgba(227, 168, 43, .3);
}
.btn--gold:hover { color: #3A2707; }

.btn--outline {
  background: transparent;
  color: var(--c-ink-800);
  border-color: var(--c-line-strong);
}
.btn--outline:hover { color: var(--c-blue-700); border-color: var(--c-blue-500); background: var(--c-blue-050); }

.btn--ghost-light {
  background: rgba(255, 255, 255, .12);
  color: #fff;
  border-color: rgba(255, 255, 255, .4);
  backdrop-filter: blur(6px);
}
.btn--ghost-light:hover { background: rgba(255, 255, 255, .22); color: #fff; }

.btn--sm { padding: 9px 18px; font-size: 14px; }
.btn--lg { padding: 16px 34px; font-size: 17px; }
.btn--block { width: 100%; }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: var(--fw-semibold);
  color: var(--c-blue-700);
}
.text-link svg { width: 16px; height: 16px; transition: transform var(--dur) var(--ease); }
.text-link:hover svg { transform: translateX(4px); }

.btn-row { display: flex; flex-wrap: wrap; gap: var(--sp-4); }

/* ---------------- 标签 / 徽标 ---------------- */
.tag {
  display: inline-block;
  padding: 6px 14px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--c-blue-800);
  background: var(--c-blue-050);
  border-radius: var(--r-pill);
}
.tag--teal { color: var(--c-teal-700); background: var(--c-teal-050); }
.tag--gold { color: var(--c-gold-600); background: var(--c-gold-050); }
.tag--plum { color: var(--c-plum-600); background: var(--c-plum-050); }

.tag-cloud { display: flex; flex-wrap: wrap; gap: var(--sp-3); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  border-radius: var(--r-pill);
  background: var(--grad-gold);
  color: #4A3209;
}

/* ---------------- 卡片 ---------------- */
.card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--sh-3);
  border-color: transparent;
}
.card-media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--c-bg-soft);
}
.card-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease);
}
.card:hover .card-media img { transform: scale(1.06); }
.card-media--contain img { object-fit: contain; padding: var(--sp-5); mix-blend-mode: multiply; }
.card-body { padding: var(--sp-5); display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-title { margin: 0; font-size: var(--fs-h4); color: var(--c-ink-900); }
.card-title-en {
  display: block;
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--c-teal-600);
  margin-top: 6px;
}
.card-text { font-size: var(--fs-sm); color: var(--c-ink-500); margin: 0; }
.card-footer { margin-top: auto; padding-top: var(--sp-3); }

/* 图标特性卡 */
.feature {
  padding: var(--sp-6);
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.feature:hover { transform: translateY(-5px); box-shadow: var(--sh-2); border-color: transparent; }
.feature-icon {
  display: grid;
  place-items: center;
  width: 54px; height: 54px;
  margin-bottom: var(--sp-5);
  border-radius: var(--r-md);
  background: var(--grad-soft);
  color: var(--c-blue-700);
}
.feature-icon svg { width: 26px; height: 26px; }
.feature h3 { font-size: var(--fs-h4); margin-bottom: 10px; }
.feature p { font-size: var(--fs-sm); color: var(--c-ink-500); margin: 0; }

.section--dark .feature {
  background: rgba(255, 255, 255, .06);
  border-color: rgba(255, 255, 255, .14);
}
.section--dark .feature p { color: #AFC0DE; }
.section--dark .feature-icon { background: rgba(255, 255, 255, .12); color: var(--c-teal-400); }

/* 编号特性列表（品控三条） */
.check-list { margin: 0; padding: 0; list-style: none; display: grid; gap: var(--sp-5); }
.check-list li { display: flex; gap: var(--sp-4); margin: 0; }
.check-mark {
  flex-shrink: 0;
  width: 30px; height: 30px;
  display: grid; place-items: center;
  border-radius: var(--r-pill);
  background: var(--c-teal-050);
  color: var(--c-teal-600);
}
.check-mark svg { width: 16px; height: 16px; }
.check-list strong { display: block; color: var(--c-ink-900); margin-bottom: 2px; }
.check-list p { font-size: var(--fs-sm); color: var(--c-ink-500); margin: 0; }

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--grad-dark);
  color: #fff;
  isolation: isolate;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(100deg, rgba(8, 34, 88, .93) 0%, rgba(10, 42, 107, .78) 42%, rgba(11, 88, 100, .52) 100%);
}
/* 品牌液态丝带装饰 */
.hero-ribbon {
  position: absolute;
  right: -5%;
  top: 4%;
  width: 60%;
  max-width: 880px;
  height: auto;
  opacity: .5;
  pointer-events: none;
  user-select: none;
  z-index: 0;
}
.hero-glow {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(38% 55% at 8% 12%, rgba(46, 211, 198, .28), transparent 70%),
    radial-gradient(42% 60% at 92% 88%, rgba(30, 90, 214, .34), transparent 72%);
}
.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  gap: clamp(32px, 4vw, 64px);
  align-items: center;
  padding-block: clamp(56px, 8vw, 104px);
}
.hero-copy { max-width: 640px; }
.hero-visual { position: relative; }
.hero-visual img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: #fff;
  border-radius: var(--r-xl);
  padding: clamp(18px, 2.4vw, 34px);
  box-shadow: var(--sh-4);
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: -10% -8% -14% -8%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, .16), transparent 66%);
  z-index: -1;
}
.hero-title {
  font-size: var(--fs-display);
  font-weight: var(--fw-black);
  color: #fff;
  margin-bottom: var(--sp-5);
}
.hero-title .grad-text {
  background: linear-gradient(100deg, #7FE7DC 0%, #A9C8FF 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lead {
  font-size: var(--fs-lead);
  color: #CFDCF2;
  max-width: 600px;
  margin-bottom: var(--sp-7);
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-6) var(--sp-8);
  margin-top: var(--sp-8);
  padding-top: var(--sp-6);
  border-top: 1px solid rgba(255, 255, 255, .18);
}
.hero-stat b {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(26px, 3vw, 36px);
  font-weight: var(--fw-black);
  color: #fff;
  line-height: 1;
}
.hero-stat span { font-size: var(--fs-sm); color: #AFC0DE; }

@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .hero-ribbon { width: 130%; right: -34%; top: auto; bottom: -8%; opacity: .3; }
}
@media (max-width: 560px) {
  /* 手机端改为两列，避免四个数据挤在一行 */
  .hero-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-5) var(--sp-4);
  }
}

/* 页面小 Hero */
.page-hero {
  position: relative;
  background: var(--grad-dark);
  color: #fff;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  right: -120px; top: -120px;
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(46, 211, 198, .32), transparent 68%);
}
.page-hero-inner { padding-block: clamp(52px, 7vw, 88px); position: relative; }
.page-hero h1 { color: #fff; margin-bottom: var(--sp-4); }
.page-hero p { color: #C3D2EC; font-size: var(--fs-lead); max-width: 660px; margin: 0; }

/* 面包屑 */
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: var(--fs-sm); margin-bottom: var(--sp-4); color: #9DB2D6; }
.breadcrumb a { color: #C3D2EC; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span[aria-hidden] { opacity: .55; }

/* ---------------- 统计带 ---------------- */
.stats-band {
  background: var(--grad-brand);
  border-radius: var(--r-xl);
  color: #fff;
  padding: clamp(32px, 4vw, 52px) clamp(24px, 4vw, 56px);
  box-shadow: var(--sh-3);
}
.stats-band .stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--sp-6);
  text-align: center;
}
.stat b {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: var(--fw-black);
  line-height: 1.05;
  letter-spacing: -0.02em;
}
.stat span { display: block; margin-top: 8px; font-size: var(--fs-sm); color: rgba(255, 255, 255, .86); }
.stat + .stat { border-left: 1px solid rgba(255, 255, 255, .22); }
@media (max-width: 640px) { .stat + .stat { border-left: 0; } }

/* ---------------- 流程时间线 ---------------- */
.process {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--sp-6);
  counter-reset: step;
}
.process-step {
  position: relative;
  padding: var(--sp-6) var(--sp-5) var(--sp-5);
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
}
.process-step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  font-family: var(--font-num);
  font-size: 30px;
  font-weight: var(--fw-black);
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: var(--sp-3);
}
.process-step h3 { font-size: var(--fs-h4); margin-bottom: 8px; }
.process-step p { font-size: var(--fs-sm); color: var(--c-ink-500); margin: 0; }

/* ---------------- 画廊 + 灯箱 ---------------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--sp-4);
}
.gallery-item {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--c-bg-soft);
  cursor: zoom-in;
  aspect-ratio: 3 / 2;
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur-slow) var(--ease); }
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 22px 14px 12px;
  background: linear-gradient(to top, rgba(8, 26, 60, .88), transparent);
  color: #fff;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  text-align: left;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: grid;
  place-items: center;
  padding: var(--sp-5);
  background: rgba(8, 20, 44, .92);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur) var(--ease), visibility var(--dur);
}
.lightbox.is-open { opacity: 1; visibility: visible; }
.lightbox-figure { max-width: min(1080px, 92vw); max-height: 86vh; text-align: center; }
.lightbox-figure img {
  max-width: 100%;
  max-height: 76vh;
  width: auto;
  margin-inline: auto;
  border-radius: var(--r-md);
  background: #fff;
  box-shadow: var(--sh-4);
}
.lightbox-caption { color: #D7E1F3; margin-top: var(--sp-4); font-size: var(--fs-sm); }
.lightbox-close,
.lightbox-nav {
  position: absolute;
  display: grid;
  place-items: center;
  width: 48px; height: 48px;
  background: rgba(255, 255, 255, .14);
  color: #fff;
  border: 0;
  border-radius: var(--r-pill);
  transition: background var(--dur) var(--ease);
}
.lightbox-close:hover,
.lightbox-nav:hover { background: rgba(255, 255, 255, .3); }
.lightbox-close { top: 22px; right: 22px; }
.lightbox-nav svg { width: 22px; height: 22px; }
.lightbox-prev { left: 22px; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 22px; top: 50%; transform: translateY(-50%); }
.lightbox-close svg { width: 20px; height: 20px; }

/* 产品详情灯箱 */
.plightbox .lightbox-figure { text-align: left; max-width: min(880px, 92vw); }
.plightbox-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: #fff;
  border-radius: var(--r-lg);
  overflow: hidden;
  max-height: 82vh;
}
.plightbox-media { background: var(--c-bg-soft); display: grid; place-items: center; padding: var(--sp-5); }
.plightbox-media img { max-height: 62vh; width: auto; object-fit: contain; mix-blend-mode: multiply; }
.plightbox-body { padding: var(--sp-6); overflow-y: auto; }
.plightbox-body h3 { margin-bottom: 4px; }
.plightbox-body .card-title-en { margin-bottom: var(--sp-4); }
.plightbox-body p { font-size: var(--fs-sm); color: var(--c-ink-600); }
@media (max-width: 700px) {
  .plightbox-card { grid-template-columns: 1fr; }
  .plightbox-media img { max-height: 34vh; }
}

/* ---------------- 手风琴 ---------------- */
.faq { max-width: 860px; margin-inline: auto; display: grid; gap: var(--sp-3); }
.faq-item {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.faq-item.is-open { border-color: var(--c-blue-300); box-shadow: var(--sh-2); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  width: 100%;
  padding: var(--sp-5);
  background: transparent;
  border: 0;
  text-align: left;
  font-size: var(--fs-h4);
  font-weight: var(--fw-semibold);
  color: var(--c-ink-900);
}
.faq-q svg { width: 20px; height: 20px; flex-shrink: 0; color: var(--c-blue-600); transition: transform var(--dur) var(--ease); }
.faq-item.is-open .faq-q svg { transform: rotate(180deg); }
.faq-a { overflow: hidden; height: 0; transition: height var(--dur) var(--ease); }
.faq-a-inner { padding: 0 var(--sp-5) var(--sp-5); font-size: var(--fs-sm); color: var(--c-ink-600); }

/* ---------------- 筛选 tabs ---------------- */
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  justify-content: center;
  margin-bottom: var(--sp-7);
}
.filter-tab {
  padding: 9px 18px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--c-ink-600);
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r-pill);
  transition: all var(--dur) var(--ease);
}
.filter-tab:hover { color: var(--c-blue-700); border-color: var(--c-blue-300); }
.filter-tab.is-active {
  color: #fff;
  background: var(--grad-brand);
  border-color: transparent;
  box-shadow: 0 6px 16px rgba(30, 90, 214, .24);
}
@media (max-width: 720px) {
  .filter-tabs {
    flex-wrap: nowrap;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: var(--sp-3);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .filter-tabs::-webkit-scrollbar { display: none; }
  .filter-tab { flex-shrink: 0; }
}

/* ---------------- 认证徽标条 ---------------- */
.cert-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(24px, 5vw, 64px);
}
.cert-strip img {
  height: 74px;
  width: auto;
  object-fit: contain;
  filter: grayscale(1);
  opacity: .62;
  transition: filter var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.cert-strip img:hover { filter: none; opacity: 1; }

.cert-wall {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: var(--sp-5);
}
.cert-wall figure {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  padding: var(--sp-5);
  text-align: center;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.cert-wall figure:hover { transform: translateY(-4px); box-shadow: var(--sh-2); }
.cert-wall img { height: 150px; width: auto; margin: 0 auto var(--sp-4); object-fit: contain; }
.cert-wall figcaption { font-size: var(--fs-sm); font-weight: var(--fw-medium); color: var(--c-ink-700); }

/* ---------------- 联系方式块 ---------------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--sp-5);
}
.contact-card {
  display: flex;
  gap: var(--sp-4);
  padding: var(--sp-6);
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.contact-card:hover { transform: translateY(-4px); box-shadow: var(--sh-2); }
.contact-card .feature-icon { margin: 0; flex-shrink: 0; width: 48px; height: 48px; }
.contact-card .feature-icon svg { width: 22px; height: 22px; }
.contact-card h4 { margin-bottom: 6px; }
.contact-card p, .contact-card a { font-size: var(--fs-sm); color: var(--c-ink-600); margin: 0; word-break: break-word; }
.contact-card a { font-weight: var(--fw-semibold); color: var(--c-blue-700); }

.qr-panel {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-6);
  justify-content: center;
  padding: var(--sp-6);
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
}
.qr-panel figure { text-align: center; }
.qr-panel img { width: 168px; height: 168px; object-fit: contain; border-radius: var(--r-sm); }
.qr-panel figcaption { margin-top: var(--sp-3); font-size: var(--fs-sm); color: var(--c-ink-600); }

/* ---------------- CTA 带 ---------------- */
.cta-band {
  position: relative;
  overflow: hidden;
  background: var(--grad-dark);
  border-radius: var(--r-xl);
  padding: clamp(36px, 5vw, 64px) clamp(24px, 5vw, 64px);
  color: #fff;
}
.cta-band::before {
  content: "";
  position: absolute;
  left: -100px; bottom: -140px;
  width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(46, 211, 198, .3), transparent 70%);
}
.cta-band-inner {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-6);
  align-items: center;
  justify-content: space-between;
}
.cta-band h2 { color: #fff; margin-bottom: 8px; }
.cta-band p { color: #C3D2EC; margin: 0; max-width: 620px; }

/* ---------------- 其他 ---------------- */
.media-frame {
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--sh-3);
  background: var(--c-bg-soft);
}
.media-frame img { width: 100%; height: 100%; object-fit: cover; }

.divider-line { height: 1px; background: var(--c-line); }

.kv-list { margin: 0; padding: 0; list-style: none; display: grid; gap: var(--sp-3); }
.kv-list li { display: flex; justify-content: space-between; gap: var(--sp-4); font-size: var(--fs-sm); padding-bottom: var(--sp-3); border-bottom: 1px dashed var(--c-line); }
.kv-list dt, .kv-list .k { color: var(--c-ink-500); }
.kv-list .v { font-weight: var(--fw-semibold); color: var(--c-ink-900); }

/* 滚动显现 */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
  will-change: opacity, transform;
}
[data-reveal].is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; }
}