/* ==========================================================================
   RIZHEN · rz-home.css — front page station sequence
   Layout families used: A hero · B trust bar · C tabs+diagram · D bento cards
   E zigzag · F dark number board · G horizontal scroll · H marquee · I CTA band
   ========================================================================== */

/* --------------------------------------------------------------------------
   A. HERO — 全屏轮播（full-bleed stage + 覆盖式文案）
   -------------------------------------------------------------------------- */
.hero {
  --hero-h: calc(100vh - var(--topbar-h) - var(--header-h) - var(--station-h));
  position: relative;
  height: var(--hero-h);
  min-height: 560px;
  max-height: 940px;
  background: var(--c-obsidian);
  color: #fff;
  overflow: hidden;
  isolation: isolate;
}

/* 舞台：整幅背景 */
.hero__stage { position: absolute; inset: 0; z-index: 0; }
.hero__slide {
  position: absolute; inset: 0;
  opacity: 0; visibility: hidden;
  transition: opacity 1s var(--ease), visibility 1s;
}
.hero__slide.is-active { opacity: 1; visibility: visible; }
.hero__slide-media {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  background-repeat: no-repeat;
  background-color: var(--c-obsidian);
  transform: scale(1.05);
  transition: transform 9s linear;
}
.hero__slide.is-active .hero__slide-media { transform: scale(1); }
/* 工程示意图（SVG）不裁切，靠右居中显示 */
.hero__slide--diagram .hero__slide-media {
  background-size: contain;
  background-position: center right;
  transform: none;
}
@media (min-width: 1081px) {
  .hero__slide--diagram .hero__slide-media { background-position: right 4% center; background-size: 62% auto; }
}
/* 阅读性遮罩：仅工业炭黑，无彩色渐变（V3 §4.3）。
   基色用规范内浅一档炭黑 #1F252B。档位在此一处调 */
.hero__scrim {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(120% 95% at 0% 100%, rgba(31,37,43,0.78) 0%, rgba(31,37,43,0.52) 30%, rgba(31,37,43,0.16) 56%, rgba(31,37,43,0) 76%),
    linear-gradient(0deg, rgba(31,37,43,0.58) 0%, rgba(31,37,43,0) 20%);
}
/* 极细工程网格，强化"图纸"质感（1px 线，无发光） */
.hero__grid-lines {
  position: absolute; inset: 0; z-index: 1; pointer-events: none; opacity: 0.5;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.055) 1px, transparent 1px);
  background-size: 96px 96px;
}

/* 覆盖层：上机型读数 / 下主文案（视觉重心下沉，平衡上下） */
.hero__overlay {
  position: relative; z-index: 2;
  height: 100%;
  display: flex; flex-direction: column; justify-content: space-between;
  padding-top: clamp(36px, 5vh, 76px);
  padding-bottom: clamp(20px, 3vh, 34px);
}

.hero__head { min-height: 0; }

.hero__copy { display: flex; flex-direction: column; align-items: flex-start; gap: clamp(16px, 2vh, 24px); margin-top: auto; }

.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--ff-mono); font-size: var(--fs-over); font-weight: 700;
  letter-spacing: 1.4px; text-transform: uppercase; color: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.24); background: rgba(18, 22, 26, 0.35);
  backdrop-filter: blur(6px);
  border-radius: 2px; padding: 7px 12px; width: fit-content; line-height: 1;
}
.hero__pulse {
  width: 6px; height: 6px; border-radius: 50%; background: var(--c-precision-2);
  position: relative; flex: none;
}
.hero__pulse::after {
  content: ""; position: absolute; inset: -4px; border-radius: 50%;
  border: 1px solid var(--c-precision-2); opacity: 0.6;
  animation: rz-pulse 2.4s var(--ease-io) infinite;
}
@keyframes rz-pulse {
  0% { transform: scale(0.6); opacity: 0.75; }
  70%, 100% { transform: scale(1.6); opacity: 0; }
}

.hero h1 { color: #fff; max-width: 20em; padding-bottom: 2px; }
.hero h1 em { font-style: normal; color: #7FB2E5; display: inline-block; }
.hero__sub {
  color: rgba(255, 255, 255, 0.78);
  max-width: 46ch; font-size: clamp(15px, 1.25vw, 17px);
}
body.lang-zh .hero__sub { max-width: 25em; }
.hero__ctas { display: flex; flex-wrap: wrap; gap: var(--s-4); margin-top: var(--s-2); }

/* 下部：底部控件条（轮播点 / 进度 / 箭头） */
.hero__foot { display: flex; flex-direction: column; gap: clamp(16px, 2.4vh, 26px); }

.hero__slide-body { display: none; }
.hero__slide-body.is-active { display: block; animation: rz-slide-in 0.7s var(--ease) both; }
@keyframes rz-slide-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}
.hero__slide-bodies { position: relative; }
.hero__slide-body-inner { display: flex; flex-direction: column; gap: var(--s-3); }

.hero__slide-label {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--ff-mono); font-size: var(--fs-micro); font-weight: 700;
  letter-spacing: 1.5px; text-transform: uppercase; color: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.22); background: rgba(31, 37, 43, 0.45);
  border-radius: 2px; padding: 6px 10px; width: fit-content; line-height: 1;
}
.hero__slide-title {
  font-size: clamp(18px, 1.7vw, 24px); font-weight: 600; color: #fff; line-height: 1.3;
  max-width: 26em;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0% 1px; background-position: 0 100%; background-repeat: no-repeat;
  transition: background-size 0.4s var(--ease);
  padding-bottom: 2px;
}
a.hero__slide-title:hover { background-size: 100% 1px; }

.hero__readout {
  display: flex; flex-wrap: wrap; gap: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  padding-top: var(--s-4); margin: 0;
}
.hero__readout div {
  padding-right: clamp(20px, 3vw, 44px); margin-right: clamp(20px, 3vw, 44px);
  border-right: 1px solid rgba(255, 255, 255, 0.14);
}
.hero__readout div:last-child { border-right: 0; margin-right: 0; padding-right: 0; }
.hero__readout dt {
  font-family: var(--ff-mono); font-size: 12px; letter-spacing: 1.3px;
  text-transform: uppercase; color: rgba(255, 255, 255, 0.55); margin-bottom: 5px;
}
.hero__readout dd {
  margin: 0; font-family: var(--ff-mono); font-size: clamp(20px, 2vw, 28px);
  font-weight: 500; color: #fff; font-variant-numeric: tabular-nums slashed-zero; line-height: 1;
}

/* 控件行 */
.hero__bar {
  display: flex; align-items: center; justify-content: space-between; gap: var(--s-5);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding-top: var(--s-4);
}
.hero__dots { display: flex; gap: 8px; align-items: center; }
.hero__dots button {
  position: relative; width: 46px; height: 3px; background: rgba(255, 255, 255, 0.26);
  border-radius: 1px;
  transition: background-color var(--dur-micro) var(--ease-io), transform var(--dur-micro) var(--ease-io);
}
.hero__dots button:hover { background: rgba(255, 255, 255, 0.55); }
.hero__dots button.is-active { background: #fff; transform: scaleY(1.8); }

.hero__nav { display: flex; align-items: center; gap: 10px; }
.hero__btn {
  width: 40px; height: 40px; border-radius: 2px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: #fff; display: inline-flex; align-items: center; justify-content: center;
  transition: background-color var(--dur-micro) var(--ease-io), border-color var(--dur-micro) var(--ease-io), transform var(--dur-micro) var(--ease-io);
}
.hero__btn:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; }
.hero__btn:active { transform: scale(0.94); }

.hero__timer { position: relative; width: 40px; height: 40px; flex: none; }
.hero__timer svg { transform: rotate(-90deg); }
.hero__timer circle { fill: none; stroke-width: 1.5; }
.hero__timer .track { stroke: rgba(255, 255, 255, 0.22); }
.hero__timer .bar { stroke: #fff; stroke-dasharray: 100 100; stroke-dashoffset: 100; }
.hero__counter {
  font-size: var(--fs-micro); letter-spacing: 1.4px; color: rgba(255, 255, 255, 0.6);
  margin-right: 6px; white-space: nowrap;
}
.hero__counter [data-slide-counter] { color: #fff; font-weight: 500; }

.hero__place {
  font-family: var(--ff-mono); font-size: var(--fs-micro); letter-spacing: 1.2px;
  text-transform: uppercase; color: rgba(255, 255, 255, 0.5);
  display: flex; align-items: center; gap: var(--s-4);
}
.hero__place b { color: #fff; font-weight: 500; }

/* 滚动提示（右侧竖排，不与底部控件冲突） */
.hero__scroll {
  position: absolute; z-index: 3; right: clamp(14px, 1.4vw, 22px); bottom: 148px;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  font-family: var(--ff-mono); font-size: 9px; letter-spacing: 2.4px;
  text-transform: uppercase; color: rgba(255, 255, 255, 0.5);
  writing-mode: vertical-rl;
  transition: color var(--dur-micro) var(--ease-io);
}
.hero__scroll span.line {
  width: 1px; height: 46px; background: rgba(255, 255, 255, 0.26); position: relative; overflow: hidden;
}
.hero__scroll span.line::after {
  content: ""; position: absolute; inset: 0; background: #fff;
  transform: translateY(-100%);
  animation: rz-scroll-hint 2.6s var(--ease-io) infinite;
}
@keyframes rz-scroll-hint {
  0% { transform: translateY(-100%); }
  60%, 100% { transform: translateY(100%); }
}
.hero__scroll:hover { color: #fff; }

@media (max-width: 1080px) {
  .hero {
    --hero-h: calc(100vh - var(--header-h) - var(--station-h));
    min-height: 620px; max-height: none;
  }
  .hero__slide--diagram .hero__slide-media { background-size: 118% auto; background-position: center bottom; }
  .hero__scroll { display: none; }
}
@media (max-width: 760px) {
  .hero { min-height: 640px; }
  .hero__readout dd { font-size: 18px; }
  .hero__place { display: none; }
  .hero__bar { padding-top: var(--s-3); }
  .hero__scrim {
    background:
      radial-gradient(140% 95% at 8% 100%, rgba(31,37,43,0.80) 0%, rgba(31,37,43,0.55) 34%, rgba(31,37,43,0.16) 62%, rgba(31,37,43,0) 80%),
      linear-gradient(0deg, rgba(31,37,43,0.60) 0%, rgba(31,37,43,0) 22%);
  }
}

/* --------------------------------------------------------------------------
   B. TRUST BAR
   -------------------------------------------------------------------------- */
.trust { background: var(--c-surface); border-block: 1px solid var(--c-hairline); }
.trust__inner {
  display: flex; align-items: center; justify-content: space-between; gap: var(--s-6);
  padding-block: var(--s-5); flex-wrap: wrap;
}
.trust__badges { display: flex; align-items: center; gap: var(--s-5); flex-wrap: wrap; }
.trust__badge { display: inline-flex; align-items: center; gap: 10px; }
.trust__code {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 46px; height: 26px; padding: 0 8px;
  border: 1px solid var(--c-obsidian); border-radius: 2px;
  font-family: var(--ff-mono); font-size: 12px; font-weight: 700; letter-spacing: 1px;
}
.trust__code img {
  max-width: 34px; max-height: 18px; object-fit: contain;
}
.trust__badge span:last-child { font-size: var(--fs-meta); color: var(--c-slate); }
.trust__stats { display: flex; align-items: stretch; gap: 0; flex-wrap: wrap; }
.trust__stat {
  display: flex; flex-direction: column; gap: 2px;
  padding-left: var(--s-5); margin-left: var(--s-5);
  border-left: 1px solid var(--c-hairline);
}
.trust__stat:first-child { border-left: 0; margin-left: 0; padding-left: 0; }
.trust__stat b {
  font-family: var(--ff-mono); font-size: clamp(24px, 2.2vw, 30px); font-weight: 600; line-height: 1;
  font-variant-numeric: tabular-nums slashed-zero; color: var(--c-obsidian);
}
.trust__stat b span { font: inherit; }
.trust__stat > span { font-size: var(--fs-micro); color: var(--c-slate); letter-spacing: 0.02em; }
@media (max-width: 820px) {
  .trust__inner { flex-direction: column; align-items: flex-start; gap: var(--s-5); }
}

/* --------------------------------------------------------------------------
   C. SOLUTIONS · vertical tabs + engineering diagram
   -------------------------------------------------------------------------- */
.matrix { display: grid; grid-template-columns: 232px minmax(0, 1fr); gap: clamp(28px, 3.4vw, 56px); }
.matrix__nav { position: relative; display: flex; flex-direction: column; border-left: 1px solid var(--c-hairline); }
.matrix__indicator {
  position: absolute; left: -1px; top: 0; width: 2px; height: 0;
  background: var(--c-precision);
  transition: transform 0.45s var(--ease), height 0.45s var(--ease);
}
.matrix__tab {
  text-align: left; padding: 16px 0 16px var(--s-5);
  display: flex; flex-direction: column; gap: 4px;
  color: var(--c-slate);
  transition: color var(--dur-micro) var(--ease-io), transform var(--dur-micro) var(--ease-io);
}
.matrix__tab .n { font-family: var(--ff-mono); font-size: 12px; letter-spacing: 1.4px; opacity: 0.7; }
.matrix__tab .t { font-size: var(--fs-h4); font-weight: 600; }
.matrix__tab:hover { color: var(--c-obsidian); transform: translateX(2px); }
.matrix__tab[aria-selected="true"] { color: var(--c-obsidian); }

.matrix__panels { position: relative; min-width: 0; }
.matrix__panel { display: none; }
/* 卡片化面板：左工艺色块 + 右图 */
.matrix__panel.is-active {
  display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
  background: var(--c-white);
  border: 1px solid var(--c-hairline);
  border-radius: 15px;
  overflow: hidden;
}
.matrix__panel.is-active > * {
  animation: rz-panel-in 0.5s var(--ease) both;
}
.matrix__panel.is-active > *:nth-child(2) { animation-delay: 0.08s; }
@keyframes rz-panel-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}
.matrix__copy {
  display: flex; flex-direction: column; gap: var(--s-4);
  padding: clamp(28px, 3.2vw, 52px);
  background: linear-gradient(155deg, #0A62B8 0%, var(--c-precision) 46%, #013A72 100%);
  color: #fff;
}
.matrix__copy h3 { color: #fff; }
.matrix__copy p { color: rgba(255, 255, 255, 0.8); }
.matrix__specs { margin-top: var(--s-2); border-top: 1px solid rgba(255, 255, 255, 0.22); }
.matrix__spec {
  display: grid; grid-template-columns: 9em minmax(0, 1fr); gap: var(--s-4);
  padding: 13px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  align-items: baseline;
}
.matrix__spec dt {
  font-family: var(--ff-mono); font-size: var(--fs-micro); letter-spacing: 1px;
  text-transform: uppercase; color: rgba(255, 255, 255, 0.62);
}
.matrix__spec dd { margin: 0; font-size: var(--fs-data); color: #fff; }
.matrix__cta { margin-top: auto; align-self: flex-start; }
.matrix__figure {
  position: relative; overflow: hidden;
  background: var(--c-surface);
  min-height: 420px;
}
.matrix__figure svg, .matrix__figure img {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
}
.matrix__figure svg [stroke] { }
.matrix__panel.is-active .matrix__figure svg path,
.matrix__panel.is-active .matrix__figure svg line,
.matrix__panel.is-active .matrix__figure svg rect,
.matrix__panel.is-active .matrix__figure svg circle {
  animation: rz-draw 0.9s var(--ease) both;
}
@keyframes rz-draw {
  from { opacity: 0; }
  to { opacity: 1; }
}
@media (max-width: 980px) {
  .matrix { grid-template-columns: minmax(0, 1fr); }
  .matrix__nav { flex-direction: row; overflow-x: auto; border-left: 0; border-bottom: 1px solid var(--c-hairline); }
  .matrix__nav::-webkit-scrollbar { display: none; }
  .matrix__indicator { left: 0; bottom: -1px; top: auto; width: 0; height: 2px; transition: transform 0.45s var(--ease), width 0.45s var(--ease); }
  .matrix__tab { padding: 12px var(--s-5) 14px 0; }
  .matrix__panel.is-active { grid-template-columns: minmax(0, 1fr); }
  .matrix__figure { min-height: 240px; }
  .matrix__cta { margin-top: var(--s-2); }
}

/* --------------------------------------------------------------------------
   D. MACHINES · bento
   -------------------------------------------------------------------------- */
.bento {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: var(--s-4);
}
.bento > * { grid-column: span 2; }
.bento > *:first-child { grid-column: span 4; }

.mcard {
  position: relative; display: flex; flex-direction: column;
  background: var(--c-white); border: 1px solid var(--c-hairline); border-radius: var(--r);
  overflow: hidden;
  transition: transform var(--dur-micro) var(--ease-io), box-shadow var(--dur-micro) var(--ease-io), border-color var(--dur-micro) var(--ease-io);
}
.mcard:hover { transform: translateY(-2px); box-shadow: var(--sh-hover); border-color: #C3C9D2; }
.mcard:active { transform: translateY(0); box-shadow: none; }
.mcard__media {
  position: relative; aspect-ratio: 4 / 3; background: var(--c-surface); overflow: hidden;
}
.bento > *:first-child .mcard__media { aspect-ratio: 16 / 9; }
.mcard__media img, .mcard__media svg {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.mcard:hover .mcard__media img, .mcard:hover .mcard__media svg { transform: scale(1.04); }
.mcard__tag {
  position: absolute; top: 10px; left: 10px;
  font-family: var(--ff-mono); font-size: 12px; font-weight: 700; letter-spacing: 1px;
  background: rgba(255, 255, 255, 0.92); color: var(--c-obsidian);
  border-radius: 2px; padding: 4px 7px; text-transform: uppercase;
}
.mcard__body { padding: var(--s-4); display: flex; flex-direction: column; gap: 10px; flex: 1; }
.mcard__model {
  font-family: var(--ff-mono); font-size: var(--fs-micro); letter-spacing: 1.2px;
  text-transform: uppercase; color: var(--c-precision);
}
.mcard__title { font-size: var(--fs-h4); line-height: 1.35; }
.bento > *:first-child .mcard__title { font-size: var(--fs-h3); }
.mcard__desc { font-size: var(--fs-meta); color: var(--c-slate); line-height: 1.6; }
.mcard__foot {
  margin-top: auto; padding-top: var(--s-3); border-top: 1px solid var(--c-hairline-2);
  display: flex; align-items: center; justify-content: space-between; gap: var(--s-3);
  font-family: var(--ff-sans); font-size: var(--fs-micro); letter-spacing: 1px;
  text-transform: uppercase; color: var(--c-slate);
}
.mcard__foot .arrow { transition: transform var(--dur-micro) var(--ease-io); color: var(--c-obsidian); }
.mcard:hover .mcard__foot .arrow { transform: translateX(4px); }

.series-index {
  display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0;
  margin-top: var(--s-6); border-top: 1px solid var(--c-hairline);
}
.series-index a {
  display: flex; flex-direction: column; gap: 6px;
  padding: var(--s-5) var(--s-4) var(--s-5) 0;
  border-right: 1px solid var(--c-hairline-2);
  transition: background-color var(--dur-micro) var(--ease-io);
  position: relative;
}
.series-index a:last-child { border-right: 0; }
.series-index a::after {
  content: ""; position: absolute; left: 0; top: -1px; right: 1px; height: 2px;
  background: var(--c-precision); transform: scaleX(0); transform-origin: left center;
  transition: transform 0.35s var(--ease);
}
.series-index a:hover::after { transform: scaleX(1); }
.series-index .n { font-family: var(--ff-mono); font-size: 12px; letter-spacing: 1.4px; color: var(--c-slate); }
.series-index .t { font-size: var(--fs-data); font-weight: 600; }
.series-index .m { font-family: var(--ff-sans); font-size: var(--fs-micro); color: var(--c-slate); letter-spacing: 0.04em; }
@media (max-width: 1080px) {
  .bento { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .bento > *:first-child { grid-column: span 4; }
  .series-index { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .series-index a { border-bottom: 1px solid var(--c-hairline-2); }
}
@media (max-width: 640px) {
  .bento { grid-template-columns: minmax(0, 1fr); }
  .bento > *, .bento > *:first-child { grid-column: span 1; }
  .series-index { grid-template-columns: minmax(0, 1fr); }
}

/* --------------------------------------------------------------------------
   E. MANUFACTURING · zigzag + wide stat card
   -------------------------------------------------------------------------- */
.zig { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(28px, 3.6vw, 64px); align-items: center; }
.zig + .zig { margin-top: clamp(48px, 6vw, 96px); }
.zig--flip .zig__visual { order: 2; }
.zig__visual {
  position: relative; background: var(--c-surface); border: 1px solid var(--c-hairline);
  border-radius: var(--r); overflow: hidden; aspect-ratio: 4 / 3;
}
.zig__visual img, .zig__visual svg { width: 100%; height: 100%; object-fit: cover; }
.zig__copy { display: flex; flex-direction: column; gap: var(--s-4); }
.zig__copy p { color: var(--c-slate); }
.zig__stats { display: flex; gap: 0; margin-top: var(--s-2); }
.zig__stat {
  padding-right: var(--s-6); margin-right: var(--s-6);
  border-right: 1px solid var(--c-hairline);
}
.zig__stat:last-child { border-right: 0; margin-right: 0; padding-right: 0; }
.zig__stat b {
  display: block; font-family: var(--ff-mono); font-size: clamp(24px, 2.4vw, 32px);
  font-weight: 500; line-height: 1.1; font-variant-numeric: tabular-nums slashed-zero;
}
.zig__stat i { font-style: normal; font-family: var(--ff-mono); font-size: var(--fs-meta); color: var(--c-slate); }
.zig__stat span { display: block; font-size: var(--fs-micro); color: var(--c-slate); margin-top: 4px; }
@media (max-width: 900px) {
  .zig { grid-template-columns: minmax(0, 1fr); }
  .zig--flip .zig__visual { order: 0; }
}

.wide-card {
  margin-top: clamp(48px, 6vw, 96px);
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  border: 1px solid var(--c-hairline); border-radius: var(--r); overflow: hidden;
  background: var(--c-white);
}
.wide-card__copy { padding: clamp(24px, 3vw, 48px); display: flex; flex-direction: column; gap: var(--s-4); }
.wide-card__visual { background: var(--c-surface); position: relative; min-height: 260px; }
.wide-card__visual img, .wide-card__visual svg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 900px) { .wide-card { grid-template-columns: minmax(0, 1fr); } }

/* --------------------------------------------------------------------------
   F. NUMBER BOARD (dark)
   -------------------------------------------------------------------------- */
.board { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--c-hairline-dark); }
.board__item {
  padding: var(--s-6) var(--s-5) var(--s-5) 0;
  border-right: 1px solid var(--c-hairline-dark);
  display: flex; flex-direction: column; gap: 8px;
  position: relative;
}
.board__item:last-child { border-right: 0; }
.board__value {
  display: flex; align-items: baseline; gap: 6px;
  font-family: var(--ff-mono); font-weight: 500; color: #fff;
  font-size: clamp(38px, 4.6vw, 60px); line-height: 1; letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums slashed-zero;
}
.board__unit { font-size: var(--fs-h4); color: rgba(255, 255, 255, 0.6); font-weight: 400; }
.board__label { font-size: var(--fs-meta); color: rgba(255, 255, 255, 0.62); max-width: 20ch; }
.board__bar {
  height: 2px; background: rgba(255, 255, 255, 0.14); margin-top: var(--s-3); max-width: 90%;
  position: relative; overflow: hidden;
}
.board__bar::after {
  content: ""; position: absolute; inset: 0; background: var(--c-precision-2);
  transform: scaleX(0); transform-origin: left center;
  transition: transform 1s var(--ease);
}
.board__item.is-in .board__bar::after { transform: scaleX(1); }
@media (max-width: 900px) { .board { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .board { grid-template-columns: minmax(0, 1fr); } .board__item { border-right: 0; border-bottom: 1px solid var(--c-hairline-dark); } }

/* --------------------------------------------------------------------------
   G. RESOURCE RAIL (horizontal scroll)
   -------------------------------------------------------------------------- */
.rail { position: relative; }
.rail__track {
  display: grid; grid-auto-flow: column; grid-auto-columns: minmax(288px, 1fr);
  gap: var(--s-4);
  overflow-x: auto; scroll-snap-type: x mandatory;
  padding-bottom: var(--s-4);
  scrollbar-width: thin;
}
.rail__track::-webkit-scrollbar { height: 3px; }
.rail__track::-webkit-scrollbar-thumb { background: var(--c-hairline); }
.rail__track > * { scroll-snap-align: start; }
.rail__hint {
  display: flex; align-items: center; gap: 8px; margin-top: var(--s-3);
  font-family: var(--ff-sans); font-size: var(--fs-micro); letter-spacing: 1px;
  text-transform: uppercase; color: var(--c-slate);
}

.rcard {
  display: flex; flex-direction: column; gap: var(--s-3);
  background: var(--c-white); border: 1px solid var(--c-hairline); border-radius: var(--r);
  padding: var(--s-5);
  transition: transform var(--dur-micro) var(--ease-io), box-shadow var(--dur-micro) var(--ease-io);
}
.rcard:hover { transform: translateY(-2px); box-shadow: var(--sh-hover); }
.rcard__icon {
  width: 40px; height: 40px; border: 1px solid var(--c-hairline); border-radius: 2px;
  display: flex; align-items: center; justify-content: center; color: var(--c-precision);
}
.rcard__type {
  font-family: var(--ff-mono); font-size: 12px; font-weight: 700; letter-spacing: 1.4px;
  text-transform: uppercase; color: var(--c-slate);
}
.rcard h3 { font-size: var(--fs-h4); }
.rcard p { font-size: var(--fs-meta); color: var(--c-slate); }
.rcard__foot {
  margin-top: auto; padding-top: var(--s-4); border-top: 1px solid var(--c-hairline-2);
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--ff-mono); font-size: var(--fs-micro); letter-spacing: 0.06em; color: var(--c-slate);
}
.rcard__foot b { color: var(--c-obsidian); font-weight: 500; }

/* --------------------------------------------------------------------------
   H. CLIENT MARQUEE (single marquee on the site)
   -------------------------------------------------------------------------- */
.marquee { position: relative; overflow: hidden; padding-block: var(--s-5); }
.marquee::before, .marquee::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 90px; z-index: 2; pointer-events: none;
}
.marquee::before { left: 0; background: linear-gradient(90deg, var(--c-canvas), rgba(247, 248, 250, 0)); }
.marquee::after { right: 0; background: linear-gradient(270deg, var(--c-canvas), rgba(247, 248, 250, 0)); }
.marquee__track {
  display: flex; align-items: center; gap: var(--s-8); width: max-content;
  /* 6 组内容，-50% 循环 = 3 组距离；时长按距离等比放大，视觉速度与原 2 组×34s 一致 */
  animation: rz-marquee 102s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes rz-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.client { display: inline-flex; align-items: center; gap: 12px; }
.client__mark {
  width: 44px; height: 44px; flex: none;
  border: 1px solid var(--c-hairline); border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--ff-mono); font-size: var(--fs-meta); font-weight: 700; letter-spacing: 0.5px;
  color: var(--c-obsidian); background: var(--c-white);
}
.client__mark img { width: 100%; height: 100%; object-fit: contain; border-radius: 50%; }
.client span { font-size: var(--fs-data); color: var(--c-slate); white-space: nowrap; }
@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation: none; flex-wrap: wrap; width: 100%; justify-content: center; gap: var(--s-5); }
  /* 静态降级只显示第一组，附加组不参与换行堆叠 */
  .marquee__track .client[aria-hidden="true"] { display: none; }
}

/* --------------------------------------------------------------------------
   I. INSIGHTS (1 featured + 2 stacked)
   -------------------------------------------------------------------------- */
.insights { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: var(--s-5); }
.insights__stack { display: grid; gap: var(--s-4); align-content: start; }

.pcard {
  display: flex; flex-direction: column;
  background: var(--c-white); border: 1px solid var(--c-hairline); border-radius: var(--r);
  overflow: hidden;
  transition: transform var(--dur-micro) var(--ease-io), box-shadow var(--dur-micro) var(--ease-io);
}
.pcard:hover { transform: translateY(-2px); box-shadow: var(--sh-hover); }
.pcard__media { aspect-ratio: 16 / 9; background: var(--c-surface); overflow: hidden; }
.pcard__media img, .pcard__media svg { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.pcard:hover .pcard__media img { transform: scale(1.04); }
.pcard__body { padding: var(--s-5); display: flex; flex-direction: column; gap: var(--s-3); flex: 1; }
.pcard__meta {
  display: flex; align-items: center; gap: var(--s-3);
  font-family: var(--ff-mono); font-size: var(--fs-micro); letter-spacing: 1px;
  text-transform: uppercase; color: var(--c-slate);
}
.pcard__meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--c-hairline); }
.pcard h3 { font-size: var(--fs-h4); }
.pcard--lead h3 { font-size: var(--fs-h3); }
.pcard p { font-size: var(--fs-meta); color: var(--c-slate); }
.pcard__cta {
  margin-top: auto; padding-top: var(--s-3);
  font-family: var(--ff-sans); font-size: var(--fs-micro); letter-spacing: 1px;
  text-transform: uppercase; color: var(--c-precision);
  display: flex; align-items: center; gap: 8px;
}
.pcard:hover .pcard__cta .arrow { transform: translateX(4px); }
.pcard__cta .arrow { transition: transform var(--dur-micro) var(--ease-io); }

.pcard--flat { flex-direction: row; align-items: stretch; }
.pcard--flat .pcard__media { aspect-ratio: 1 / 1; width: 116px; flex: none; }
.pcard--flat .pcard__body { padding: var(--s-4); gap: 8px; }

@media (max-width: 900px) {
  .insights { grid-template-columns: minmax(0, 1fr); }
  .pcard--flat { flex-direction: column; }
  .pcard--flat .pcard__media { width: 100%; aspect-ratio: 16 / 9; }
}

/* --------------------------------------------------------------------------
   J. CTA BAND
   -------------------------------------------------------------------------- */
.cta {
  background: var(--c-obsidian); color: #fff;
  padding-block: clamp(56px, 6.4vw, 96px);
  position: relative; overflow: hidden;
}
.cta__inner { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr); gap: clamp(32px, 4vw, 72px); align-items: end; }
.cta h2 { color: #fff; font-size: clamp(28px, 3.4vw, 44px); line-height: 1.18; max-width: 20em; }
.cta h2 em { font-style: normal; color: rgba(255, 255, 255, 0.55); display: inline-block; }
.cta p { color: var(--c-on-dark); max-width: 52ch; margin-top: var(--s-4); }
body.lang-zh .cta p { max-width: 28em; }
.cta__actions { display: grid; gap: var(--s-4); }
.cta__meta {
  border-top: 1px solid var(--c-hairline-dark); padding-top: var(--s-4); margin-top: var(--s-2);
  display: grid; gap: 6px;
  font-family: var(--ff-mono); font-size: var(--fs-micro); letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.6);
}
.cta__meta b { color: #fff; font-weight: 500; letter-spacing: 0.08em; }
.cta__meta a:hover { color: #fff; }
@media (max-width: 900px) { .cta__inner { grid-template-columns: minmax(0, 1fr); } }

/* anchor 内 span 块级化（双类名提高特异性，避免被 .mcard > span 覆盖） */
.mcard > span, .pcard > span, .case-card > span, .rcard > span,
.mcard__body > span, .pcard__body > span, .case-card__body > span { display: block; }
.mcard__body.mcard__body, .rcard.rcard, .pcard__body.pcard__body, .case-card__body.case-card__body { display: flex; flex-direction: column; }
.mcard__foot.mcard__foot, .rcard__foot.rcard__foot, .case-card__meta.case-card__meta { display: flex; flex-direction: row; align-items: center; }
.pcard__meta.pcard__meta, .pcard__cta.pcard__cta { display: flex; flex-direction: row; align-items: center; }
.mcard__media.mcard__media, .pcard__media.pcard__media, .case-card__media.case-card__media { display: block; }
.mcard__foot .arrow, .pcard__cta .arrow, .rcard__foot b { display: inline-flex; align-items: center; gap: 6px; }
.rcard__icon.rcard__icon { display: inline-flex; align-items: center; justify-content: center; }
.mcard__tag.mcard__tag { display: inline-block; }

/* ==========================================================================
   07 · 资质证书循环轨道（替代原资料轨）
   双份列表 + translateX(-50%) 无缝循环（同工厂页 gallery-rail 方案）；
   悬停暂停；prefers-reduced-motion 退化为手动横向滚动
   ========================================================================== */
.cert-rail { position: relative; overflow: hidden; }
.cert-rail::before, .cert-rail::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: clamp(40px, 6vw, 90px); z-index: 2; pointer-events: none;
}
.cert-rail::before { left: 0; background: linear-gradient(90deg, var(--c-surface), rgba(236, 238, 242, 0)); }
.cert-rail::after { right: 0; background: linear-gradient(270deg, var(--c-surface), rgba(236, 238, 242, 0)); }
.cert-rail__track {
  display: flex; width: max-content; padding-block: 2px;
  /* 4 组内容，-50% 循环 = 2 组距离；时长等比放大保持视觉速度 */
  animation: rz-cert-scroll 92s linear infinite;
}
.cert-rail:hover .cert-rail__track { animation-play-state: paused; }
.cert-rail__item {
  flex: none; width: clamp(280px, 26vw, 380px); margin-right: var(--s-5);
  background: var(--c-white); border: 1px solid var(--c-hairline); border-radius: var(--r);
  padding: var(--s-5); display: flex; flex-direction: column; gap: 10px;
}
.cert-rail__img {
  display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: contain;
  border: 1px solid var(--c-hairline-2); border-radius: 2px; background: var(--c-canvas);
  margin-bottom: 2px;
}
.cert-rail__code {
  font-family: var(--ff-mono); font-size: 12px; font-weight: 500;
  letter-spacing: 1.2px; color: var(--c-precision);
}
.cert-rail__item h3 { font-size: var(--fs-h4); }
.cert-rail__item p { font-size: var(--fs-meta); color: var(--c-slate); }
@keyframes rz-cert-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .cert-rail { overflow-x: auto; }
  .cert-rail__track { animation: none; }
}