/* ==========================================================================
   WCIMCI Creative LED — design system
   Base: white surfaces, #f5f5f7 sections, #0071e3 accent, tight display type.
   ========================================================================== */

:root {
  --ink: #1d1d1f;
  --ink-2: #3a3a3c;
  --muted: #626268;
  --muted-2: #86868b;
  --paper: #f5f5f7;
  --line: #d2d2d7;
  --line-soft: #e5e5e8;
  --blue: #0071e3;
  --blue-dark: #0062c4;
  --blue-tint: #e8f2ff;
  --night: #0b0d12;
  --night-2: #14171e;
  --gold: #f0a94c;
  --radius: 22px;
  --radius-sm: 14px;
  --shell: 1240px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: #fff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
h1, h2, h3, h4 { margin: 0; text-wrap: balance; overflow-wrap: break-word; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }

.shell { width: min(var(--shell), calc(100% - 48px)); margin-inline: auto; }

.skip-link {
  position: fixed; top: -80px; left: 18px; z-index: 400;
  background: #fff; padding: 12px 22px; border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0,0,0,.16); font-size: 14px;
}
.skip-link:focus { top: 14px; }

/* ---------- type ---------- */

.display {
  font-size: clamp(40px, 5.6vw, 76px);
  line-height: 1.06;
  letter-spacing: -.05em;
  font-weight: 650;
}
.h2 {
  font-size: clamp(30px, 3.6vw, 50px);
  line-height: 1.1;
  letter-spacing: -.042em;
  font-weight: 650;
}
.h3 {
  font-size: clamp(21px, 2.2vw, 27px);
  line-height: 1.22;
  letter-spacing: -.028em;
  font-weight: 640;
}
.kicker {
  display: inline-block;
  font-size: 12px;
  font-weight: 640;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}
.lede {
  font-size: clamp(18px, 1.9vw, 22px);
  line-height: 1.55;
  color: var(--muted);
}
.body-copy p + p { margin-top: 18px; }
.body-copy p { color: var(--muted); font-size: 17px; line-height: 1.72; }
.body-copy strong { color: var(--ink); font-weight: 640; }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 24px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
  white-space: nowrap;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); }
.btn-ghost { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-ghost:hover { border-color: var(--ink); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: #000; }
.btn-onDark { border-color: rgba(255,255,255,.32); color: #fff; }
.btn-onDark:hover { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.6); }

.link-arrow {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--blue); font-size: 15px; font-weight: 600;
}
.link-arrow:hover { color: var(--blue-dark); }
.link-arrow svg { transition: transform .2s var(--ease); }
.link-arrow:hover svg { transform: translateX(3px); }

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255,255,255,.86);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,.07);
}
.nav-shell {
  width: min(var(--shell), calc(100% - 48px));
  margin-inline: auto;
  min-height: 68px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  margin-right: 6px;
}
.brand-lock {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.brand-lock img { height: 37px; width: auto; display: block; }
.brand-word {
  font-size: 10px;
  font-weight: 760;
  letter-spacing: .3em;
  text-indent: .3em;
  line-height: 1;
  text-transform: uppercase;
  color: var(--ink);
}
.brand-mark {
  font-size: 21px;
  font-weight: 750;
  letter-spacing: -.03em;
  color: var(--ink);
}
.brand-sub {
  font-size: 11px;
  font-weight: 640;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted-2);
  padding-left: 9px;
  border-left: 1px solid var(--line);
}

.main-nav { display: flex; align-items: center; gap: 2px; margin-left: auto; }
.main-nav > a,
.nav-parent > a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 13px;
  border-radius: 9px;
  font-size: 14.5px;
  font-weight: 520;
  color: var(--ink-2);
  transition: color .18s, background .18s;
}
.main-nav > a:hover,
.nav-parent > a:hover,
.main-nav > a.active { color: var(--blue); }
.nav-parent > a.active { color: var(--blue); }
.nav-caret { width: 9px; height: 9px; opacity: .55; transition: transform .2s; }
.nav-parent:hover .nav-caret { transform: rotate(180deg); }

.nav-actions { display: flex; align-items: center; gap: 8px; margin-left: 14px; }
.nav-phone { font-size: 14px; font-weight: 560; color: var(--ink-2); padding: 8px 6px; }
.nav-cta { padding: 10px 18px; font-size: 14px; }
.menu-button {
  display: none;
  width: 40px; height: 40px;
  border: 1px solid var(--line-soft);
  background: #fff;
  border-radius: 10px;
  padding: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.menu-button i { display: block; width: 16px; height: 1.8px; background: var(--ink); transition: transform .22s var(--ease), opacity .18s; }
.menu-button[aria-expanded="true"] i:first-child { transform: translateY(3.4px) rotate(45deg); }
.menu-button[aria-expanded="true"] i:last-child { transform: translateY(-3.4px) rotate(-45deg); }

/* mega menu */
.mega {
  position: absolute;
  left: 0; right: 0;
  top: 100%;
  background: #fff;
  border-bottom: 1px solid var(--line-soft);
  box-shadow: 0 28px 50px rgba(0,0,0,.09);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s;
  z-index: 80;
}
.nav-parent:hover .mega,
.nav-parent:focus-within .mega { opacity: 1; visibility: visible; transform: translateY(0); }
.mega-inner {
  width: min(var(--shell), calc(100% - 48px));
  margin-inline: auto;
  padding: 30px 0 34px;
  display: grid;
  grid-template-columns: 1.1fr 1.6fr;
  gap: 44px;
}
.mega-lead h3 { font-size: 22px; letter-spacing: -.03em; font-weight: 650; }
.mega-lead p { color: var(--muted); font-size: 14.5px; margin-top: 8px; max-width: 300px; }
.mega-lead .link-arrow { margin-top: 14px; font-size: 14px; }
.mega-list { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 26px; }
.mega-list a { display: block; padding: 9px 10px; border-radius: 10px; }
.mega-list a:hover { background: var(--paper); }
.mega-list strong { display: block; font-size: 15px; font-weight: 600; color: var(--ink); }
.mega-list span { display: block; font-size: 13px; color: var(--muted-2); line-height: 1.45; margin-top: 2px; }

/* ---------- hero ---------- */

.hero {
  background: var(--paper);
  padding: 26px 0 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero-copy { max-width: 880px; margin-inline: auto; padding: 54px 0 66px; }
.brand-lock.is-hero { display: flex; width: fit-content; margin: 0 auto 24px; gap: 9px; }
.brand-lock.is-hero img { height: 66px; }
.brand-lock.is-hero .brand-word { font-size: 12.5px; letter-spacing: .36em; text-indent: .36em; }
.hero .kicker { color: var(--muted); }
.brand-lock.is-about { align-items: flex-start; margin: 24px 0 20px; gap: 7px; }
.brand-lock.is-about img { height: 54px; }
.brand-lock.is-about .brand-word { font-size: 12px; letter-spacing: .34em; text-indent: .34em; }
.hero h1 { margin: 20px 0 0; }
.hero h1 em { font-style: normal; color: var(--blue); }
.hero p.lede { margin: 24px auto 0; max-width: 640px; }
.hero-actions {
  display: flex; gap: 20px; justify-content: center; align-items: center;
  flex-wrap: wrap; margin-top: 30px;
}
.hero-figure {
  margin-top: 0;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--night);
  aspect-ratio: 16 / 7;
  display: grid;
  place-items: center;
}
.hero-figure img { width: 100%; height: 100%; object-fit: cover; }

/* webp 优先的图片容器：不改变原有布局，只做格式分发 */
.media-pic { display: contents; }

/* hero slider */
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .9s var(--ease);
}
.hero-slide.is-active { opacity: 1; }
.hero-figure .slider-dots {
  position: absolute; bottom: 14px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 7px; z-index: 3;
  padding: 7px 11px; border-radius: 999px;
  background: rgba(0,0,0,.30);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
}
.slider-dots button {
  width: 7px; height: 7px; padding: 0; border: 0; border-radius: 50%;
  background: rgba(255,255,255,.45); cursor: pointer;
  transition: width .3s var(--ease), background .3s;
}
.slider-dots button:hover { background: rgba(255,255,255,.75); }
.slider-dots button.is-active { width: 22px; border-radius: 4px; background: #fff; }
.slider-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 40px; height: 40px; border: 0; border-radius: 50%;
  background: rgba(0,0,0,.35); color: #fff; cursor: pointer;
  display: grid; place-items: center; z-index: 3; padding: 0;
  opacity: 0; transition: opacity .25s, background .2s;
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
}
.hero-figure:hover .slider-arrow, .slider-arrow:focus-visible { opacity: 1; }
.slider-arrow:hover { background: rgba(0,0,0,.55); }
.slider-arrow.prev { left: 16px; }
.slider-arrow.next { right: 16px; }
.hero-figure .ph-label {
  position: absolute; bottom: 16px; right: 18px;
  font-size: 11px; letter-spacing: .12em; text-transform: uppercase;
  color: rgba(255,255,255,.42);
}

/* shape plate — drawn outline used where no product photo exists yet */
.shape-plate {
  position: relative;
  width: 100%; height: 100%;
  min-height: 220px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 4px;
  background:
    radial-gradient(90% 70% at 50% 12%, rgba(59,130,246,.22), transparent 65%),
    linear-gradient(160deg, #12161d 0%, #0a0c11 70%);
  overflow: hidden;
}
.shape-plate::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(75% 65% at 50% 45%, #000 15%, transparent 82%);
}
.shape-plate svg { position: relative; width: 74%; max-width: 320px; height: auto; }
.plate-label {
  position: relative;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
  color: rgba(255,255,255,.58);
}

/* placeholder surface when no image yet */
.ph {
  position: relative;
  background:
    radial-gradient(120% 90% at 50% 115%, rgba(0,113,227,.34), transparent 62%),
    linear-gradient(150deg, #14171e 0%, #0b0d12 62%);
  overflow: hidden;
}
.ph::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(80% 70% at 50% 50%, #000 20%, transparent 85%);
  -webkit-mask-image: radial-gradient(80% 70% at 50% 50%, #000 20%, transparent 85%);
}
.ph::after {
  content: attr(data-ph);
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 0 24px;
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: rgba(255,255,255,.34);
}

/* ---------- ticker ---------- */

.ticker {
  background: var(--ink);
  color: rgba(255,255,255,.72);
  overflow: hidden;
  border-top: 1px solid rgba(0,0,0,.1);
}
.ticker-track {
  display: flex;
  align-items: center;
  gap: 42px;
  height: 46px;
  width: max-content;
  white-space: nowrap;
  font-size: 12.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  animation: tickerScroll 46s linear infinite;
}
.ticker-track i {
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--blue); flex-shrink: 0;
}
.ticker:hover .ticker-track { animation-play-state: paused; }
@keyframes tickerScroll { to { transform: translateX(-50%); } }

/* ---------- sections ---------- */

.section { padding: 96px 0; }
.section.tight { padding: 72px 0; }
.section.paper { background: var(--paper); }
.section.dark { background: var(--night); color: #fff; }
.section.dark .kicker { color: rgba(255,255,255,.5); }
.section.dark .body-copy p { color: rgba(255,255,255,.66); }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 40px;
  margin-bottom: 44px;
}
.section-head .h2 { max-width: 720px; }
.section-head p {
  color: var(--muted);
  font-size: 16.5px;
  max-width: 380px;
  margin: 0;
}
.section.dark .section-head p { color: rgba(255,255,255,.6); }

/* ---------- category lineup ---------- */

.lineup {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}
.lineup-card {
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .26s var(--ease), box-shadow .26s var(--ease);
}
.lineup-card:hover { transform: translateY(-4px); box-shadow: 0 22px 44px rgba(0,0,0,.09); }
.lineup-media {
  aspect-ratio: 4 / 3.1;
  background: var(--night-2);
  position: relative;
  overflow: hidden;
}
.lineup-media img { width: 100%; height: 100%; object-fit: cover; }
.lineup-body { padding: 20px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.lineup-body .kicker { font-size: 10.5px; color: var(--blue); letter-spacing: .12em; }
.lineup-body h3 { font-size: 18.5px; line-height: 1.25; letter-spacing: -.025em; font-weight: 640; margin: 9px 0 8px; }
.lineup-body p { font-size: 14px; line-height: 1.55; color: var(--muted); margin-bottom: 18px; }
.lineup-body .link-arrow { margin-top: auto; font-size: 13.5px; }

/* ---------- dark showcase ---------- */

.showcase { display: grid; grid-template-columns: 1fr 1.15fr; gap: 60px; align-items: center; }
.showcase-figure {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background: #000;
}
.showcase-figure img { width: 100%; height: 100%; object-fit: cover; }
.showcase h2 { color: #fff; margin-bottom: 20px; }
.showcase .lede { color: rgba(255,255,255,.68); margin-bottom: 26px; }
.metric-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px 26px;
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,.13);
}
.metric b { display: block; font-size: 27px; font-weight: 620; letter-spacing: -.03em; color: #fff; line-height: 1.15; }
.metric span { display: block; font-size: 12.5px; color: rgba(255,255,255,.5); margin-top: 4px; letter-spacing: .02em; }

/* ---------- product cards ---------- */

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}
.product-card {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .24s var(--ease), box-shadow .24s var(--ease);
}
.product-card:hover { transform: translateY(-3px); box-shadow: 0 20px 40px rgba(0,0,0,.08); }
.product-media {
  aspect-ratio: 4 / 3;
  background: var(--paper);
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.product-media img { width: 100%; height: 100%; object-fit: cover; }
.badge {
  position: absolute;
  top: 12px; left: 12px;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  color: var(--ink);
  font-size: 11px;
  font-weight: 620;
  letter-spacing: .04em;
  padding: 5px 11px;
  border-radius: 999px;
  z-index: 2;
}
.product-body { padding: 20px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.product-body .model { font-size: 11.5px; letter-spacing: .08em; color: var(--muted-2); font-weight: 560; text-transform: uppercase; }
.product-body h3 { font-size: 19px; line-height: 1.28; letter-spacing: -.026em; font-weight: 640; margin: 7px 0 10px; }
.product-body p { font-size: 14px; line-height: 1.55; color: var(--muted); margin-bottom: 16px; }
.quick-specs {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: 18px; margin-top: auto;
}
.quick-specs li {
  font-size: 11.5px;
  color: var(--ink-2);
  background: var(--paper);
  border-radius: 6px;
  padding: 4px 8px;
  letter-spacing: .01em;
}

/* ---------- value / process ---------- */

.use-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.use-card {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: #fff;
  padding: 22px 22px;
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--ink-2);
  min-height: 96px;
  display: flex;
  align-items: center;
}

.product-card.more-card { background: var(--paper); border-style: dashed; box-shadow: none; }
.product-card.more-card:hover { transform: none; box-shadow: none; border-color: var(--blue); }
.more-card .more-inner { padding: 30px 26px; display: flex; flex-direction: column; gap: 9px; justify-content: center; flex: 1; }
.more-card h3 { font-size: 19px; letter-spacing: -.025em; font-weight: 640; margin: 0; color: var(--ink); }
.more-card p { font-size: 14px; color: var(--muted); line-height: 1.6; margin: 0 0 8px; }
.more-card .link-arrow { margin-top: 0; }

.product-grid.also { grid-template-columns: repeat(auto-fit, minmax(280px, 380px)); justify-content: start; }

.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 34px; }
.value-item { border-top: 1px solid var(--line); padding-top: 22px; }
.value-item .num { font-size: 12px; font-weight: 620; color: var(--blue); letter-spacing: .1em; }
.value-item h3 { font-size: 18.5px; letter-spacing: -.025em; font-weight: 640; margin: 12px 0 8px; }
.value-item p { font-size: 14.5px; color: var(--muted); line-height: 1.62; }

.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line-soft); }
.process-step {
  padding: 28px 26px 30px 0;
  border-right: 1px solid var(--line-soft);
}
.process-step:last-child { border-right: 0; }
.process-step .step-n {
  font-size: 12px; font-weight: 640; color: var(--blue);
  letter-spacing: .1em; text-transform: uppercase;
}
.process-step h3 { font-size: 18px; letter-spacing: -.022em; font-weight: 640; margin: 10px 0 8px; }
.process-step p { font-size: 14px; color: var(--muted); line-height: 1.6; }

/* ---------- application blocks ---------- */

.app-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.app-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line-soft);
}
.app-card .app-media { aspect-ratio: 3 / 2; background: var(--night-2); }
.app-card .app-media img { width: 100%; height: 100%; object-fit: cover; }
.app-body { padding: 26px 28px 30px; }
.app-body h3 { font-size: 24px; letter-spacing: -.032em; font-weight: 640; margin-bottom: 10px; }
.app-body p { font-size: 15px; color: var(--muted); line-height: 1.62; margin-bottom: 16px; }

/* ---------- insights ---------- */

.insight-grid { display: grid; grid-template-columns: 1.25fr 1fr 1fr; gap: 22px; }
.insight {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  display: flex;
  flex-direction: column;
  transition: transform .24s var(--ease), box-shadow .24s var(--ease);
}
.insight:hover { transform: translateY(-3px); box-shadow: 0 18px 36px rgba(0,0,0,.07); }
.insight .ins-media { aspect-ratio: 16 / 9; background: var(--night-2); }
.insight .ins-media img { width: 100%; height: 100%; object-fit: cover; }
.ins-body { padding: 22px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.ins-meta { font-size: 12px; color: var(--muted-2); letter-spacing: .03em; display: flex; gap: 10px; }
.ins-body h3 { font-size: 19px; line-height: 1.3; letter-spacing: -.026em; font-weight: 640; margin: 10px 0 10px; }
.ins-body p { font-size: 14px; color: var(--muted); line-height: 1.58; margin-bottom: 16px; }
.ins-body .link-arrow { margin-top: auto; font-size: 13.5px; }
.insight.featured .ins-media { aspect-ratio: 16 / 8.4; }
.insight.featured .ins-body h3 { font-size: 25px; }

/* ---------- CTA band ---------- */

.cta-band {
  background: var(--ink);
  color: #fff;
  padding: 72px 0;
}
.cta-inner { display: flex; justify-content: space-between; align-items: center; gap: 40px; }
.cta-inner h2 { font-size: clamp(27px, 3vw, 40px); line-height: 1.14; letter-spacing: -.038em; font-weight: 640; max-width: 620px; }
.cta-inner p { color: rgba(255,255,255,.6); font-size: 15.5px; margin-top: 12px; max-width: 520px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; flex-shrink: 0; }

/* ---------- page hero (inner pages) ---------- */

.page-hero { background: var(--paper); padding: 54px 0 56px; border-bottom: 1px solid var(--line-soft); }
.breadcrumbs { font-size: 13px; color: var(--muted-2); display: flex; flex-wrap: wrap; gap: 7px; align-items: center; }
.breadcrumbs a:hover { color: var(--blue); }
.breadcrumbs span { opacity: .5; }
.page-hero h1 { font-size: clamp(32px, 4.4vw, 58px); line-height: 1.08; letter-spacing: -.045em; font-weight: 650; margin: 16px 0 18px; max-width: 900px; }
.page-hero .lede { max-width: 680px; }
.page-hero-meta { display: flex; flex-wrap: wrap; gap: 26px; margin-top: 26px; }
.page-hero-meta div { font-size: 13px; color: var(--muted); }
.page-hero-meta b { display: block; font-size: 20px; font-weight: 620; color: var(--ink); letter-spacing: -.02em; }

/* ---------- category page ---------- */

.cat-intro { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: start; }
.cat-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.cat-highlights div { background: #fff; padding: 20px 22px; }
.cat-highlights b { display: block; font-size: 22px; font-weight: 620; letter-spacing: -.028em; }
.cat-highlights span { font-size: 12.5px; color: var(--muted-2); }

.app-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 28px; margin-top: 26px; }
.app-list li {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: 15px; color: var(--ink-2); line-height: 1.5;
}
.app-list li::before {
  content: ""; flex-shrink: 0;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--blue); margin-top: 8px;
}

/* ---------- product detail ---------- */

.detail-grid { display: grid; grid-template-columns: 1.08fr 1fr; gap: 54px; align-items: start; }
.detail-media {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--night-2);
  aspect-ratio: 1 / .92;
  position: sticky;
  top: 96px;
}
.detail-media img { width: 100%; height: 100%; object-fit: cover; }
.detail-copy .model { font-size: 12px; letter-spacing: .09em; text-transform: uppercase; color: var(--muted-2); font-weight: 560; }
.detail-copy h1 { font-size: clamp(28px, 3.3vw, 42px); line-height: 1.14; letter-spacing: -.038em; font-weight: 650; margin: 10px 0 18px; }
.detail-copy .lede { font-size: 17px; }
.quick-table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0 0;
  font-size: 14.5px;
}
.quick-table tr { border-bottom: 1px solid var(--line-soft); }
.quick-table tr:first-child { border-top: 1px solid var(--line-soft); }
.quick-table th {
  text-align: left;
  font-weight: 500;
  color: var(--muted);
  padding: 11px 0;
  width: 45%;
}
.quick-table td { padding: 11px 0; font-weight: 560; color: var(--ink); text-align: right; }
.detail-actions { display: flex; gap: 12px; margin-top: 26px; flex-wrap: wrap; }

.feature-list { margin-top: 30px; display: grid; gap: 14px; }
.feature-list li {
  display: flex; gap: 12px;
  font-size: 15px; line-height: 1.6; color: var(--muted);
}
.feature-list li svg { flex-shrink: 0; margin-top: 4px; color: var(--blue); }

.spec-section { background: var(--paper); }
.spec-table { width: 100%; border-collapse: collapse; font-size: 15px; background: #fff; border-radius: var(--radius-sm); overflow: hidden; }
.spec-table th {
  background: var(--paper);
  text-align: left;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .09em;
  color: var(--muted);
  font-weight: 600;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line-soft);
}
.spec-table td { padding: 13px 20px; border-bottom: 1px solid #f0f0f2; vertical-align: top; }
.spec-table tr:last-child td { border-bottom: 0; }
.spec-table td:first-child { color: var(--muted); width: 42%; }
.spec-table td:last-child { color: var(--ink); font-weight: 520; }
.spec-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 0 40px; }

/* ---------- pitch matrix ---------- */

.matrix-wrap {
  overflow-x: auto;
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  -webkit-overflow-scrolling: touch;
}
.matrix-table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 620px; }
.matrix-table th, .matrix-table td { padding: 14px 18px; text-align: left; border-bottom: 1px solid #f0f0f2; }
.matrix-table thead th {
  font-size: 11.5px; letter-spacing: .07em; text-transform: uppercase;
  color: var(--muted); font-weight: 600; background: #fafafc; white-space: nowrap;
}
.matrix-table thead th.corner { width: 148px; }
.matrix-table tbody th {
  font-weight: 600; color: var(--ink); border-right: 1px solid #f0f0f2;
  font-variant-numeric: tabular-nums; white-space: nowrap;
}
.matrix-table tbody td { color: var(--ink-2); font-variant-numeric: tabular-nums; }
.matrix-table tbody tr:hover td, .matrix-table tbody tr:hover th { background: #f7faff; }
.matrix-table tbody tr:last-child th, .matrix-table tbody tr:last-child td { border-bottom: 0; }

/* ---------- diameter chips ---------- */

.size-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.size-nav-label {
  font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--muted-2); margin-right: 6px; font-weight: 600;
}
.size-chip {
  display: inline-block; padding: 7px 13px; border-radius: 999px;
  border: 1px solid var(--line-soft); font-size: 13.5px; font-weight: 530;
  color: var(--ink-2); text-decoration: none; font-variant-numeric: tabular-nums;
  transition: border-color .18s var(--ease), color .18s var(--ease), background .18s var(--ease);
}
.size-chip:hover { border-color: var(--blue); color: var(--blue); }
.size-chip.is-current { background: var(--ink); border-color: var(--ink); color: #fff; }

.detail-note {
  margin: 26px 0 0; padding: 20px 24px;
  border-left: 2px solid var(--blue);
  background: var(--paper); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 15.5px; line-height: 1.68; color: var(--ink-2); max-width: 820px;
}

/* ---------- FAQ ---------- */

.faq-list { border-top: 1px solid var(--line-soft); }
.faq-list details { border-bottom: 1px solid var(--line-soft); }
.faq-list summary {
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  padding: 20px 0; cursor: pointer;
  font-size: 17px; font-weight: 580; letter-spacing: -.015em;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  font-size: 22px; font-weight: 300; color: var(--muted-2);
  transition: transform .2s var(--ease);
  flex-shrink: 0;
}
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list .answer { padding: 0 0 22px; color: var(--muted); font-size: 15.5px; line-height: 1.68; max-width: 780px; }

/* ---------- article ---------- */

.crumb-bar { padding: 18px 0 0; background: #fff; }
.crumb-bar .breadcrumbs { font-size: 12.5px; }

.article-hero { aspect-ratio: 16 / 8; border-radius: var(--radius); overflow: hidden; background: var(--night-2); }
.article-hero img { width: 100%; height: 100%; object-fit: cover; }

.article-wrap { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 60px; align-items: start; max-width: 1010px; margin-inline: auto; }
.article-aside { position: sticky; top: 96px; }
.article-aside .kicker { margin-bottom: 12px; }
.article-aside dl { font-size: 13.5px; color: var(--muted); display: grid; gap: 12px; }
.article-aside dt { font-size: 11px; text-transform: uppercase; letter-spacing: .09em; color: var(--muted-2); }
.article-aside dd { margin: 2px 0 0; color: var(--ink); font-weight: 520; }
.article-body { max-width: 720px; }
.article-body > p { font-size: 19px; line-height: 1.7; color: var(--ink-2); margin-bottom: 22px; }
.article-body h2 { font-size: clamp(22px, 2.4vw, 30px); line-height: 1.25; letter-spacing: -.03em; font-weight: 640; margin: 42px 0 14px; }
.article-body p { font-size: 17.5px; line-height: 1.75; color: var(--muted); margin-bottom: 18px; }
.article-body strong { color: var(--ink); font-weight: 620; }
.article-lead { font-size: 21px !important; line-height: 1.6 !important; color: var(--ink-2) !important; margin-bottom: 32px !important; }

/* ---------- resources ---------- */

.dl-group + .dl-group { margin-top: 54px; }
.dl-group > h2 { font-size: 24px; letter-spacing: -.028em; font-weight: 640; margin-bottom: 20px; }
.dl-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 18px; }
.dl-card {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  padding: 24px 24px 22px;
  background: #fff;
  display: flex;
  flex-direction: column;
}
.dl-card h3 { font-size: 17.5px; line-height: 1.35; letter-spacing: -.02em; font-weight: 620; margin-bottom: 8px; }
.dl-card p { font-size: 14px; color: var(--muted); line-height: 1.6; margin-bottom: 16px; }
.dl-meta { font-size: 12px; color: var(--muted-2); margin-bottom: 16px; margin-top: auto; }
.dl-tag {
  display: inline-block;
  font-size: 10.5px; font-weight: 620; letter-spacing: .06em; text-transform: uppercase;
  color: var(--blue); background: var(--blue-tint);
  padding: 3px 8px; border-radius: 5px; margin-bottom: 12px;
  width: fit-content;
}

/* ---------- contact ---------- */

.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 64px; align-items: start; }
.contact-points { display: grid; gap: 26px; margin-top: 34px; }
.contact-point { border-top: 1px solid var(--line-soft); padding-top: 18px; }
.contact-point dt { font-size: 11.5px; text-transform: uppercase; letter-spacing: .09em; color: var(--muted-2); font-weight: 600; }
.contact-point dd { margin: 6px 0 0; font-size: 16px; color: var(--ink); line-height: 1.55; }
.contact-point dd a:hover { color: var(--blue); }

.form-card {
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: 0 18px 50px rgba(0,0,0,.05);
}
.form-card h2 { font-size: 24px; letter-spacing: -.028em; font-weight: 640; margin-bottom: 6px; }
.form-card > p { font-size: 14px; color: var(--muted); margin-bottom: 24px; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13px; font-weight: 560; color: var(--ink-2); }
.field label .req { color: #d13b3b; }
.field input, .field select, .field textarea {
  font: inherit;
  font-size: 15px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  min-height: 46px;
  transition: border-color .18s;
  width: 100%;
}
.field textarea { min-height: 108px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(0,113,227,.12); }
.form-note { font-size: 12.5px; color: var(--muted-2); line-height: 1.6; margin-top: 14px; }
.form-card button[type="submit"] { width: 100%; margin-top: 20px; padding: 15px; font-size: 15.5px; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ---------- footer ---------- */

.footer { background: var(--paper); color: var(--muted); padding: 68px 0 26px; border-top: 1px solid var(--line-soft); }
.footer-top { display: grid; grid-template-columns: 1.5fr .75fr .75fr 1.1fr; gap: 46px; }
.footer-brand .brand-lock { align-items: flex-start; gap: 6px; }
.footer-brand .brand-lock img { height: 44px; }
.footer-brand .brand-word { font-size: 12px; letter-spacing: .34em; text-indent: .34em; }
.footer-intro p { font-size: 14px; line-height: 1.65; color: var(--muted); max-width: 330px; margin-top: 14px; }
.footer-contact { margin-top: 20px; display: grid; gap: 6px; font-size: 13.5px; }
.footer-contact strong { color: var(--ink); font-weight: 620; font-size: 14px; }
.footer-contact a:hover { color: var(--blue); }
.footer h3 { font-size: 12px; text-transform: uppercase; letter-spacing: .1em; color: var(--ink); font-weight: 640; margin-bottom: 16px; }
.footer-links a { display: block; font-size: 14px; color: var(--muted); padding: 5px 0; }
.footer-links a:hover { color: var(--blue); }
.footer-cta { border-left: 1px solid var(--line); padding-left: 32px; }
.footer-cta span { font-size: 12px; color: var(--muted-2); text-transform: uppercase; letter-spacing: .08em; }
.footer-cta a.strong { display: block; font-size: 18px; line-height: 1.35; letter-spacing: -.02em; font-weight: 620; color: var(--ink); margin-top: 10px; }
.footer-cta a.strong:hover { color: var(--blue); }
.footer-cta .btn { margin-top: 16px; }
.footer-bottom {
  border-top: 1px solid var(--line);
  margin-top: 46px;
  padding-top: 18px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 12.5px;
  color: var(--muted-2);
  flex-wrap: wrap;
}
.footer-bottom div { display: flex; gap: 18px; }
.footer-bottom a:hover { color: var(--blue); }

/* ---------- mobile nav panel ---------- */

@media (max-width: 1040px) {
  .nav-actions { margin-left: auto; }
  .main-nav {
    position: fixed;
    inset: 68px 0 auto 0;
    background: #fff;
    border-bottom: 1px solid var(--line-soft);
    box-shadow: 0 24px 40px rgba(0,0,0,.1);
    flex-direction: column;    align-items: stretch;
    padding: 12px 20px 22px;
    gap: 0;
    display: none;
    max-height: calc(100dvh - 68px);
    overflow-y: auto;
    margin: 0;
  }
  .main-nav.open { display: flex; }
  .main-nav > a, .nav-parent > a {
    padding: 14px 4px;
    font-size: 16px;
    border-bottom: 1px solid var(--line-soft);
    border-radius: 0;
    justify-content: space-between;
  }
  .nav-parent { width: 100%; }
  .nav-parent > a { width: 100%; }
  .mega {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 0;
    display: none;
    padding: 0;
  }
  .nav-parent.open .mega { display: block; }
  .mega-inner { grid-template-columns: 1fr; gap: 0; padding: 4px 0 12px; width: 100%; }
  .mega-lead { display: none; }
  .mega-list { grid-template-columns: 1fr; gap: 0; }
  .mega-list a { padding: 11px 4px; border-bottom: 1px solid #f0f0f2; border-radius: 0; }
  .mega-list span { display: none; }
  .menu-button { display: flex; }
  .nav-phone { display: none; }
  .lineup { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .value-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .process { grid-template-columns: 1fr 1fr; }
  .process-step:nth-child(2) { border-right: 0; }
  .process-step:nth-child(1), .process-step:nth-child(2) { border-bottom: 1px solid var(--line-soft); }
  .insight-grid { grid-template-columns: 1fr 1fr; }
  .insight.featured { grid-column: 1 / -1; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer-cta { grid-column: 1 / -1; border-left: 0; padding-left: 0; border-top: 1px solid var(--line); padding-top: 26px; }
  .article-wrap { grid-template-columns: 1fr; gap: 30px; }
  .article-aside { position: static; border-bottom: 1px solid var(--line-soft); padding-bottom: 20px; }
  .article-aside dl { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .section { padding: 68px 0; }
  .section-head { display: block; }
  .section-head p { margin-top: 16px; max-width: 100%; }
  .showcase { grid-template-columns: 1fr; gap: 34px; }
  .showcase-figure { aspect-ratio: 16 / 10; }
  .cat-intro { grid-template-columns: 1fr; gap: 32px; }
  .detail-grid { grid-template-columns: 1fr; gap: 32px; }
  .detail-media { position: static; aspect-ratio: 16 / 11; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .app-grid { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; align-items: flex-start; gap: 26px; }
  .hero { padding-top: 20px; }
  .hero-figure { aspect-ratio: 16 / 10; margin-top: 0; background: #eef0f4; }
  .hero-figure img { object-fit: contain; }
  .hero-copy { padding: 40px 0 52px; }
  .spec-2col { grid-template-columns: 1fr; }
  .use-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  body { font-size: 16px; }
  .shell { width: calc(100% - 32px); }
  .nav-shell { width: calc(100% - 28px); gap: 10px; }
  .brand-sub { display: none; }
  .brand-lock img { height: 32px; }
  .brand-word { font-size: 8.5px; letter-spacing: .26em; text-indent: .26em; }
  .brand-lock.is-hero img { height: 58px; }
  .brand-lock.is-hero .brand-word { font-size: 10.5px; }
  .brand-lock.is-about img { height: 44px; }
  .nav-cta { padding: 9px 14px; font-size: 13px; }
  .hero { padding-top: 14px; }
  .display { font-size: 36px; line-height: 1.1; }
  .hero-actions { gap: 12px; flex-direction: column; align-items: stretch; max-width: 300px; margin-inline: auto; }
  .hero-actions .btn { width: 100%; }
  .hero-figure { border-radius: 16px; aspect-ratio: 3 / 2; }
  .slider-arrow { display: none; }
  .slider-dots button { width: 6px; height: 6px; }
  .slider-dots button.is-active { width: 18px; }
  .hero-copy { padding: 34px 0 44px; }
  .lineup { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .value-grid { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .process-step { border-right: 0; border-bottom: 1px solid var(--line-soft); padding-right: 0; }
  .process-step:last-child { border-bottom: 0; }
  .insight-grid { grid-template-columns: 1fr; }
  .insight.featured { grid-column: auto; }
  .use-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 10px; }
  .page-hero { padding: 38px 0 40px; }
  .field-grid { grid-template-columns: 1fr; }
  .form-card { padding: 22px; }
  .app-list { grid-template-columns: 1fr; }
  .cat-highlights { grid-template-columns: 1fr 1fr; }
  .spec-table td:first-child { width: 48%; }
  .spec-table th, .spec-table td { padding: 12px 14px; }
  .article-body > p { font-size: 17.5px; }
  .article-body p { font-size: 16.5px; }
  .detail-actions .btn { width: 100%; }
  .ticker-track { font-size: 11px; gap: 26px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ---------- print ---------- */
@media print {
  .site-header, .footer, .cta-band, .floating, .ticker { display: none; }
  body { font-size: 12pt; }
}