/* ==========================================================================
   SUPER OPC — technical / swiss-grid system
   paper #eeeeea · ink #12120f · accent red #ff2b1c · hairlines #d7d6d0
   ========================================================================== */

:root {
  --paper: #eeeeea;
  --paper-2: #f5f5f1;
  --paper-3: #e7e7e2;
  --ink: #12120f;
  --ink-2: #4b4b45;
  --mute: #8c8c84;
  --line: #d7d6d0;
  --line-2: #c8c7c0;
  --red: #ff2b1c;
  --red-dk: #d81c0e;
  --sans: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB",
          "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas,
          "Liberation Mono", "Noto Sans Mono CJK SC", monospace;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --gutter: clamp(18px, 4vw, 44px);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 70px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

main section[id] { scroll-margin-top: 68px; }

h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
svg { display: block; }
button { font: inherit; }
:focus-visible { outline: 1px solid var(--red); outline-offset: 3px; }

::selection { background: var(--red); color: #fff; }

/* paper grain */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ==========================================================================
   micro-typography primitives
   ========================================================================== */

.label,
.tag,
.clock,
.svc-tag,
.role,
.crow-k,
.copy,
.ftr-h,
.ftr-bar,
.hero-meta,
.hero-foot {
  font-family: var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
}

/* ==========================================================================
   boot overlay
   ========================================================================== */

.boot {
  position: fixed;
  inset: 0;
  z-index: 400;
  display: grid;
  place-items: center;
  background: #080807;
  transition: opacity .55s ease, visibility .55s ease;
}
.boot.is-done { opacity: 0; visibility: hidden; }
.boot-in { width: min(340px, 68vw); }
.boot-row {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .18em;
  color: rgba(244, 244, 240, .5);
  padding-bottom: 10px;
}
.boot-row-2 { padding: 10px 0 0; }
.boot-bar { height: 1px; background: rgba(244, 244, 240, .18); overflow: hidden; }
.boot-bar i {
  display: block;
  height: 100%;
  width: 0;
  background: var(--red);
  animation: bootFill .95s var(--ease) forwards;
}
@keyframes bootFill { to { width: 100%; } }

/* ==========================================================================
   custom cursor
   ========================================================================== */

.cur {
  position: fixed;
  left: 0; top: 0;
  width: 0; height: 0;
  z-index: 300;
  pointer-events: none;
  display: none;
  opacity: 0;
  transition: opacity .3s ease;
  will-change: transform;
}
.cur::before,
.cur::after {
  content: "";
  position: absolute;
  left: 0; top: 0;
  border-radius: 50%;
  pointer-events: none;
  transition: background .3s ease, border-color .3s ease;
}
.cur::before {
  width: 6px; height: 6px;
  margin: -3px 0 0 -3px;
  background: var(--ink);
}
.cur::after {
  width: 28px; height: 28px;
  margin: -14px 0 0 -14px;
  border: 1.5px solid rgba(18, 18, 15, .55);
  transition: width .32s var(--ease), height .32s var(--ease), margin .32s var(--ease),
              border-color .3s ease;
}
.cur.is-on { opacity: 1; }
.cur.is-link::after { width: 44px; height: 44px; margin: -22px 0 0 -22px; }

/* cursor over the light plasma hero */
.cur.is-light::before { background: var(--ink); }
.cur.is-light::after { border-color: rgba(18, 18, 15, .55); }
.cur-tag { color: #ff7a5c; }
.cur-tag {
  position: absolute;
  left: 22px; top: 16px;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: .2em;
  color: var(--red);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity .25s ease, transform .25s var(--ease);
}
.cur.is-link .cur-tag { opacity: 1; transform: none; }

@media (hover: hover) and (pointer: fine) {
  .cur { display: block; }
  body.has-cur,
  body.has-cur a,
  body.has-cur button { cursor: none; }
}

/* ==========================================================================
   technical rails (left halftone / right dieline)
   ========================================================================== */

.rails { position: fixed; inset: 0; z-index: 40; pointer-events: none; }
.rail { position: absolute; top: 0; bottom: 0; width: 74px; }
.rail-l { left: 0; border-right: 1px solid var(--line); }
.rail-r { right: 0; border-left: 1px solid var(--line); }

.halftone {
  position: absolute;
  left: 6px;
  width: 44px;
  background-image: radial-gradient(circle at center, rgba(18, 18, 15, .85) 1px, transparent 1.15px);
  background-size: 5px 5px;
  opacity: .62;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 22%, #000 78%, transparent),
                      linear-gradient(to right, #000 40%, transparent);
  -webkit-mask-composite: source-in;
  mask-image: linear-gradient(to bottom, transparent, #000 22%, #000 78%, transparent),
              linear-gradient(to right, #000 40%, transparent);
  mask-composite: intersect;
  animation: halftoneDrift 9s linear infinite;
}
.halftone-a { top: 14vh; height: 34vh; }
.halftone-b { top: 58vh; height: 26vh; opacity: .34; animation-delay: -3s; }
@keyframes halftoneDrift {
  from { background-position: 0 0; }
  to   { background-position: 0 5px; }
}

.dieline {
  position: absolute;
  left: 14px;
  top: 8vh;
  width: 46px;
  height: 84vh;
  color: var(--line-2);
}
.draw-path {
  stroke-dasharray: 1200;
  stroke-dashoffset: 1200;
  animation: drawLine 2.6s var(--ease) .35s forwards;
}
@keyframes drawLine { to { stroke-dashoffset: 0; } }

.rail-note {
  position: absolute;
  top: 76px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: .22em;
  color: var(--mute);
  white-space: nowrap;
  writing-mode: vertical-rl;
}

/* ==========================================================================
   header
   ========================================================================== */

.hdr {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(238, 238, 234, .86);
  backdrop-filter: blur(14px) saturate(1.1);
  -webkit-backdrop-filter: blur(14px) saturate(1.1);
  border-bottom: 1px solid transparent;
  transition: border-color .4s ease, background .4s ease;
}
.hdr.is-scrolled { border-bottom-color: var(--line); background: rgba(238, 238, 234, .94); }

.hdr-progress {
  position: absolute;
  left: 0; bottom: -1px;
  width: 100%; height: 1px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: 0 50%;
  will-change: transform;
}

.hdr-in {
  height: 62px;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  transition: height .4s var(--ease);
}
.hdr.is-scrolled .hdr-in { height: 54px; }

.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark {
  position: relative;
  height: 30px;
  width: auto;
  flex: none;
  display: block;
  transition: transform .55s var(--ease);
}
.brand-mark img { display: block; height: 100%; width: auto; }
.brand-mark .mark-light { display: none; }
.brand:hover .brand-mark { transform: translateY(-1px) scale(1.04); }
.brand-txt { display: flex; flex-direction: column; line-height: 1.15; }
.brand-txt strong {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .2em;
}
.brand-txt em {
  font-style: normal;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .24em;
  color: var(--mute);
  margin-top: 2px;
}

.nav { display: flex; align-items: center; gap: 4px; }
.nav-foot { display: none; }
.nav a {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  padding: 8px 11px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--ink-2);
  transition: color .3s ease;
}
.nav a i {
  font-family: var(--mono);
  font-style: normal;
  font-size: 8.5px;
  letter-spacing: .08em;
  color: var(--mute);
  transition: color .3s ease;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 11px; right: 11px; bottom: 3px;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .45s var(--ease), background .3s ease;
}
.nav a:hover { color: var(--ink); }
.nav a:hover i { color: var(--red); }
.nav a:hover::after { transform: scaleX(1); }
.nav a.is-active { color: var(--ink); }
.nav a.is-active i { color: var(--red); }
.nav a.is-active::after { transform: scaleX(1); background: var(--red); }

.hdr-right { display: flex; align-items: center; gap: 16px; }
.clock { font-size: 9.5px; color: var(--mute); }
.live {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--red);
  position: relative;
  flex: none;
}
.live::after {
  content: "";
  position: absolute;
  inset: -3px;
  border: 1px solid var(--red);
  border-radius: 50%;
  opacity: 0;
  animation: livePulse 2.6s ease-out infinite;
}
@keyframes livePulse {
  0%   { transform: scale(.6); opacity: .9; }
  70%  { transform: scale(1.9); opacity: 0; }
  100% { transform: scale(1.9); opacity: 0; }
}

.hdr-cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 13px;
  border: 1px solid var(--line-2);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink);
  background: transparent;
  transition: background .35s ease, color .35s ease, border-color .35s ease;
}
.hdr-cta .arr { color: var(--red); transition: transform .4s var(--ease); }
.hdr-cta:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.hdr-cta:active { transform: translateY(1px); }
.hdr-cta:hover .arr { transform: translate(2px, 2px); color: var(--red); }

.menu-btn {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line-2);
  border-radius: 2px;
  background: transparent;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink);
}
.menu-btn b { display: block; width: 14px; height: 1px; background: var(--ink); position: relative; }
.menu-btn b::before,
.menu-btn b::after {
  content: "";
  position: absolute;
  left: 0;
  width: 14px;
  height: 1px;
  background: var(--ink);
  transition: transform .3s var(--ease);
}
.menu-btn b::before { top: -4px; }
.menu-btn b::after { top: 4px; }
.menu-btn.is-open b { background: transparent; }
.menu-btn.is-open b::before { transform: translateY(4px) rotate(45deg); }
.menu-btn.is-open b::after { transform: translateY(-4px) rotate(-45deg); }

/* ---------- header over the light plasma hero ---------- */
.hdr.is-dark {
  background: rgba(238, 238, 234, .38);
  border-bottom-color: rgba(18, 18, 15, .06);
}
.hdr.is-dark.is-scrolled {
  background: rgba(238, 238, 234, .94);
  border-bottom-color: var(--line);
}
.hdr.is-dark:has(.nav.is-open) {
  background: var(--paper);
  border-bottom-color: var(--line);
}
.hdr.is-dark .brand-txt strong { color: var(--ink); }
.hdr.is-dark .brand-txt em { color: var(--mute); }
.hdr.is-dark .brand-mark .mark-dark { display: block; }
.hdr.is-dark .brand-mark .mark-light { display: none; }
.hdr.is-dark .nav a { color: var(--ink-2); }
.hdr.is-dark .nav a i { color: var(--mute); }
.hdr.is-dark .nav a:hover,
.hdr.is-dark .nav a.is-active { color: var(--ink); }
.hdr.is-dark .nav a::after { background: var(--ink); }
.hdr.is-dark .nav a.is-active::after { background: var(--red); }
.hdr.is-dark .nav a:hover i,
.hdr.is-dark .nav a.is-active i { color: var(--red); }
.hdr.is-dark .clock { color: var(--mute); }
.hdr.is-dark .hdr-cta { color: var(--ink); border-color: var(--line-2); }
.hdr.is-dark .hdr-cta:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.hdr.is-dark .menu-btn { color: var(--ink); border-color: var(--line-2); }
.hdr.is-dark .menu-btn b,
.hdr.is-dark .menu-btn b::before,
.hdr.is-dark .menu-btn b::after { background: var(--ink); }
.hdr.is-dark .menu-btn.is-open b { background: transparent; }
.hdr.is-dark .menu-btn.is-open b::before,
.hdr.is-dark .menu-btn.is-open b::after { background: var(--ink); }

/* ==========================================================================
   hero
   ========================================================================== */

.hero {
  position: relative;
  padding: 118px 0 0;
  overflow: hidden;
  /* 静态纸面：顶部略亮、底部收暗，保留极淡的暖纸渐变层次 */
  background:
    radial-gradient(128% 96% at 50% 4%, #f7f5f0 0%, #f1efe9 46%, #e9e6df 100%);
  color: var(--ink);
}
.hero > .container { position: relative; z-index: 3; }
.hero-grid {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(18, 18, 15, .07) 1px, transparent 1px) 0 0 / 25% 100%;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 22%, #000 78%, transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 22%, #000 78%, transparent);
}
.dots {
  position: absolute;
  inset: -10% -5%;
  background-image: radial-gradient(circle, rgba(18, 18, 15, .17) 1px, transparent 1.1px);
  background-size: 24px 24px;
  -webkit-mask-image: radial-gradient(120% 90% at 50% 40%, #000 40%, transparent 82%);
  mask-image: radial-gradient(120% 90% at 50% 40%, #000 40%, transparent 82%);
  transform: translate3d(var(--dx, 0), var(--dy, 0), 0);
  transition: transform 1.2s var(--ease);
  pointer-events: none;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 9.5px;
  color: rgba(18, 18, 15, .66);
  text-shadow: 0 1px 14px rgba(250, 248, 243, .9);
}
.hero-meta .hair { flex: 1; height: 1px; background: rgba(18, 18, 15, .18); }

.hero-core { padding: 52px 0 0; text-align: center; }

.tag {
  font-size: 10px;
  color: rgba(18, 18, 15, .74);
  margin-bottom: 26px;
  text-shadow: 0 1px 16px rgba(250, 248, 243, .9);
}

.display {
  font-size: clamp(32px, 6.4vw, 86px);
  line-height: 1.04;
  letter-spacing: -.025em;
  font-weight: 700;
  margin: 0 0 30px;
  color: #12120f;
  text-shadow: 0 1px 2px rgba(250, 248, 243, .7), 0 10px 44px rgba(250, 248, 243, .8);
}
.dl { display: block; }
.dl .dot { font-weight: 300; margin: 0 .08em; font-size: .62em; vertical-align: .08em; }
.w-1, .w-2 { font-weight: 500; }
.dl-red { color: var(--red); text-shadow: 0 1px 2px rgba(250, 248, 243, .65), 0 10px 40px rgba(250, 248, 243, .7); }
.dl-red .w-3 { font-weight: 800; }
.dl-red .dot { font-weight: 500; }

.hero-lead {
  max-width: 662px;
  margin: 0 auto 36px;
  font-size: 15px;
  line-height: 2;
  color: rgba(18, 18, 15, .84);
  text-shadow: 0 1px 18px rgba(250, 248, 243, .95), 0 1px 2px rgba(250, 248, 243, .6);
}

.hero-act {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}

.btn-mag {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  border-radius: 3px;
  background: var(--red);
  color: #fff;
  font-size: 13.5px;
  letter-spacing: .06em;
  box-shadow: 0 12px 26px rgba(255, 43, 28, .22);
  transition: box-shadow .4s ease;
  will-change: transform;
}
.btn-mag::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(120px 60px at var(--mx, 50%) var(--my, 50%), rgba(255, 255, 255, .3), transparent 70%);
  opacity: 0;
  transition: opacity .4s ease;
  pointer-events: none;
}
.btn-mag:hover { box-shadow: 0 16px 34px rgba(255, 43, 28, .3); }
.btn-mag:hover::after { opacity: 1; }
.btn-mag-txt, .btn-mag-arr { position: relative; z-index: 2; }
.btn-mag-arr { transition: transform .45s var(--ease); }
.btn-mag:hover .btn-mag-arr { transform: translateX(5px); }

.btn-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 2px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 1px solid rgba(18, 18, 15, .3);
  transition: border-color .35s ease, color .35s ease;
}
.btn-line .arr { transition: transform .45s var(--ease); }
.btn-line:hover { border-color: var(--ink); color: var(--red); }
.btn-line:hover .arr { transform: translate(3px, 3px); }

.cue {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-top: 40px;
}
.cue-line {
  display: block;
  width: 1px;
  height: 34px;
  background: linear-gradient(to bottom, rgba(18, 18, 15, .36), rgba(18, 18, 15, .04));
  position: relative;
  overflow: hidden;
}
.cue-line::after {
  content: "";
  position: absolute;
  left: 0; top: -14px;
  width: 1px; height: 14px;
  background: var(--red);
  animation: cueDrop 2.4s cubic-bezier(.6, 0, .4, 1) infinite;
}
@keyframes cueDrop {
  0%   { transform: translateY(0); opacity: 0; }
  25%  { opacity: 1; }
  75%  { opacity: 1; }
  100% { transform: translateY(48px); opacity: 0; }
}
.cue-tx {
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: .24em;
  color: rgba(18, 18, 15, .58);
}

.hero-foot {
  margin-top: 40px;
  padding: 14px 0 20px;
  border-top: 1px solid rgba(18, 18, 15, .18);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 9.5px;
  color: rgba(18, 18, 15, .66);
  text-shadow: 0 1px 14px rgba(250, 248, 243, .9);
}
.hero-foot-mid { color: rgba(18, 18, 15, .8); letter-spacing: .1em; }
.hero-foot-link { color: var(--ink); transition: color .3s ease; }
.hero-foot-link:hover { color: var(--red); }

/* ==========================================================================
   ticker
   ========================================================================== */

.ticker {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper-2);
  overflow: hidden;
  padding: 11px 0;
}
.ticker-track {
  display: flex;
  align-items: center;
  gap: 30px;
  width: max-content;
  animation: marquee 46s linear infinite;
}
.ticker:hover .ticker-track { animation-play-state: paused; }
.ticker-track span {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-2);
  white-space: nowrap;
}
.ticker-track b { color: var(--red); font-size: 9px; font-weight: 400; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ==========================================================================
   section shell
   ========================================================================== */

.sec { padding: clamp(64px, 8.5vw, 112px) 0; position: relative; }
.sec-alt {
  background: var(--paper-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.sec-head { max-width: 840px; margin-bottom: clamp(36px, 4.4vw, 56px); }
.label { font-size: 9.5px; color: var(--red); }
.sec-title {
  margin: 14px 0 14px;
  font-size: clamp(25px, 3.5vw, 42px);
  font-weight: 700;
  letter-spacing: -.022em;
  line-height: 1.2;
}
.sec-title em { font-style: normal; color: var(--red); }
.sec-sub { font-size: 14.5px; color: var(--ink-2); max-width: 62ch; }

/* ==========================================================================
   01 · services
   ========================================================================== */

.svc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}
.svc {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 32px 28px 26px;
  border-right: 1px solid var(--line);
  transition: background .45s ease;
}
.svc:last-child { border-right: 0; }
.svc::after {
  content: "";
  position: absolute;
  top: -1px; left: 0;
  width: 100%; height: 1px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .65s var(--ease);
}
.svc:hover { background: var(--paper-2); }
.sec-alt .svc:hover { background: #fff; }
.svc:hover::after { transform: scaleX(1); }

.svc-top { display: flex; align-items: center; justify-content: space-between; }
.svc-n {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--ink);
  transition: color .35s ease;
}
.svc:hover .svc-n { color: var(--red); }
.svc-tag { font-size: 9px; color: var(--mute); }
.svc h3 {
  margin: 26px 0 12px;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -.01em;
}
.svc p { font-size: 13.8px; line-height: 1.95; color: var(--ink-2); }

.mono-list { margin-top: 18px; }
.mono-list li {
  position: relative;
  padding-left: 15px;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 2;
  color: var(--ink-2);
}
.mono-list li::before {
  content: "+";
  position: absolute;
  left: 0;
  color: var(--red);
  transition: transform .35s var(--ease);
}
.mono-list li:hover::before { transform: rotate(90deg); }

.svc-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mute);
}
.svc-arr {
  position: static;
  font-size: 15px;
  color: var(--red);
  opacity: 0;
  transform: translate(-4px, 4px);
  transition: opacity .4s ease, transform .5s var(--ease);
}
.svc:hover .svc-arr { opacity: 1; transform: none; }
.svc .mono-list { margin-bottom: 24px; }
.svc .mono-list li { transition: transform .45s var(--ease), color .35s ease, padding-left .35s var(--ease); }
.svc:hover .mono-list li { transform: translateX(2px); color: var(--ink); }
.svc:hover .mono-list li:nth-child(2) { transition-delay: .04s; }
.svc:hover .mono-list li:nth-child(3) { transition-delay: .08s; }

/* ==========================================================================
   02 · about + stats
   ========================================================================== */

.about {
  display: grid;
  grid-template-columns: 1.12fr .88fr;
  gap: clamp(32px, 4.4vw, 60px);
  align-items: start;
}
.about-copy p {
  font-size: 14.5px;
  line-height: 2;
  color: var(--ink-2);
  margin-bottom: 18px;
}
.about-copy p:last-child { margin-bottom: 0; }
.about-copy strong {
  color: var(--ink);
  font-weight: 600;
  box-shadow: inset 0 -1px 0 rgba(255, 43, 28, .55);
}

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  background: var(--paper);
}
.sec-alt .stats { background: var(--paper); }
.stat {
  padding: 24px 22px 22px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background .4s ease;
}
.stat:hover { background: var(--paper-3); }
.stat-num {
  display: block;
  font-family: var(--mono);
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--ink);
  transition: color .4s ease;
}
.stat:hover .stat-num { color: var(--red); }
.stat-k {
  display: block;
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .14em;
  color: var(--mute);
}

/* ==========================================================================
   03 · team
   ========================================================================== */

.team-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.profile {
  position: relative;
  padding: 32px 30px 38px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background .45s ease;
}
.profile:hover { background: var(--paper-2); }

.p-head { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.avatar {
  position: relative;
  width: 66px; height: 66px;
  flex: none;
  display: grid;
  place-items: center;
  background: var(--paper);
  border: 1px solid var(--line-2);
  transition: transform .6s var(--ease), border-color .4s ease;
}
.avatar::before,
.avatar::after {
  content: "";
  position: absolute;
  background: rgba(18, 18, 15, .12);
}
.avatar::before { left: 50%; top: 7px; bottom: 7px; width: 1px; }
.avatar::after { top: 50%; left: 7px; right: 7px; height: 1px; }
.profile:hover .avatar { transform: rotate(-2deg); border-color: var(--red); }
.av-txt {
  position: relative;
  z-index: 2;
  font-size: 23px;
  font-weight: 700;
  letter-spacing: .02em;
  background: var(--paper);
  padding: 0 4px;
  line-height: 1.1;
}
.av-tr, .av-bl {
  position: absolute;
  width: 7px; height: 7px;
  border: 1px solid var(--red);
  opacity: 0;
  transition: opacity .4s ease, transform .5s var(--ease);
}
.av-tr { top: -1px; right: -1px; border-width: 1px 1px 0 0; transform: translate(-3px, 3px); }
.av-bl { bottom: -1px; left: -1px; border-width: 0 0 1px 1px; transform: translate(3px, -3px); }
.profile:hover .av-tr,
.profile:hover .av-bl { opacity: 1; transform: none; }

.p-id h3 { font-size: 24px; font-weight: 700; letter-spacing: -.01em; }
.role { font-size: 9px; color: var(--red); margin-top: 6px; }
.p-bio { font-size: 13.8px; line-height: 2; color: var(--ink-2); margin-bottom: 16px; }

.note {
  margin-top: 26px;
  padding: 22px 26px;
  background: var(--paper-2);
  border-left: 2px solid var(--red);
  font-size: 13.8px;
  line-height: 1.95;
  color: var(--ink-2);
}
.sec-alt .note { background: var(--paper); }

/* ==========================================================================
   04 · process
   ========================================================================== */

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
}
.step {
  position: relative;
  padding: 28px 24px 34px;
  border-right: 1px solid var(--line);
  transition: background .45s ease;
}
.step:last-child { border-right: 0; }
.step:hover { background: var(--paper-2); }
.step::before {
  content: "";
  position: absolute;
  top: -1px; left: 0;
  width: 100%; height: 1px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .6s var(--ease);
}
.step:hover::before { transform: scaleX(1); }
.step-n {
  display: inline-block;
  font-family: var(--mono);
  font-size: 44px;
  line-height: 1;
  letter-spacing: -.04em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(18, 18, 15, .3);
  transition: -webkit-text-stroke-color .45s ease, transform .5s var(--ease);
}
.step:hover .step-n { -webkit-text-stroke-color: var(--red); transform: translateY(-2px); }
.step h3 { margin: 20px 0 9px; font-size: 17px; font-weight: 700; }
.step p { font-size: 13.5px; line-height: 1.9; color: var(--ink-2); }

/* ---------- animated grid rules ---------- */
.svc-grid, .team-grid, .steps, .crows { border-top: 0; position: relative; }
.svc-grid::before, .team-grid::before, .steps::before, .crows::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 1px;
  background: var(--line-2);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 1.3s var(--ease);
}
.svc-grid.is-in::before, .team-grid.is-in::before,
.steps.is-in::before, .crows.is-in::before { transform: scaleX(1); }

/* ==========================================================================
   statement band
   ========================================================================== */

.statement {
  position: relative;
  overflow: hidden;
  padding: clamp(60px, 8vw, 104px) 0;
  background: var(--paper-2);
  color: var(--ink);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: center;
}
/* 动态流光已移除；首屏为静态纸面底 */
.plasma { display: none; }
.band-grid {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px) 0 0 / 25% 100%,
    linear-gradient(0deg, rgba(255,255,255,.04) 1px, transparent 1px) 0 0 / 100% 96px;
  -webkit-mask-image: radial-gradient(80% 80% at 50% 50%, #000 30%, transparent 78%);
  mask-image: radial-gradient(80% 80% at 50% 50%, #000 30%, transparent 78%);
}

.band-meta {
  position: absolute;
  z-index: 3;
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: .2em;
  color: rgba(18, 18, 15, .55);
  text-transform: uppercase;
  text-shadow: 0 1px 12px rgba(250, 248, 243, .9);
}
.band-meta-tl { top: 76px; left: var(--gutter); z-index: 4; }
.band-meta-br { bottom: 52px; right: var(--gutter); z-index: 4; }
.statement-inner { position: relative; z-index: 2; }
.flow-hint {
  display: block;
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: .16em;
  color: rgba(18, 18, 15, .5);
  text-shadow: 0 1px 12px rgba(250, 248, 243, .9);
  white-space: nowrap;
  transition: opacity .8s ease;
}
.flow-hint.is-off { opacity: 0; }
.hint-m { display: none; }
@media (prefers-reduced-motion: reduce) { .flow-hint { display: none; } }
.flow-hint.is-off { opacity: 0; }
.st-label { font-family: var(--mono); font-size: 9.5px; letter-spacing: .2em; color: var(--red); text-transform: uppercase; }
.st-text {
  margin: 22px auto 0;
  max-width: 22ch;
  line-break: strict;
  word-break: keep-all;
  font-size: clamp(24px, 4.2vw, 46px);
  font-weight: 700;
  line-height: 1.42;
  letter-spacing: -.02em;
}
.st-line { display: block; }
.st-w {
  display: inline-block;
  opacity: 0;
  transform: translateY(.45em);
  transition: opacity .8s var(--ease), transform .9s var(--ease);
}
.st-text.is-in .st-line { display: block; }
.st-w { opacity: 1; transform: none; }
.st-line:first-child .st-w:nth-child(1) { transition-delay: .04s; }
.st-line:first-child .st-w:nth-child(2) { transition-delay: .1s; }
.st-line:first-child .st-w:nth-child(3) { transition-delay: .16s; }
.st-line:first-child .st-w:nth-child(4) { transition-delay: .22s; }
.st-line:first-child .st-w:nth-child(5) { transition-delay: .28s; }
.st-line:last-child .st-w:nth-child(1) { transition-delay: .36s; }
.st-line:last-child .st-w:nth-child(2) { transition-delay: .42s; }
.st-line:last-child .st-w:nth-child(3) { transition-delay: .48s; }
.st-em { color: var(--red); }
.st-foot {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 36px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .22em;
  color: var(--mute);
}
.st-dash { display: block; width: 42px; height: 1px; background: var(--line-2); }

/* ==========================================================================
   05 · contact
   ========================================================================== */

.crows { border-top: 1px solid var(--line); }
.crow {
  position: relative;
  display: grid;
  grid-template-columns: 168px 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 19px 18px;
  border-bottom: 1px solid var(--line);
  transition: background .4s ease, padding-left .4s var(--ease);
}
.crow::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--red);
  transform: scaleY(0);
  transform-origin: 50% 0;
  transition: transform .5s var(--ease);
}
.crow:hover { background: var(--paper-2); padding-left: 24px; }
.crow:hover::before { transform: scaleY(1); }
.crow-k { font-size: 9px; color: var(--mute); transition: color .35s ease; }
.crow:hover .crow-k { color: var(--red); }
.crow-v { font-size: 17px; font-weight: 500; letter-spacing: -.01em; }
.crow-v-mail {
  font-family: var(--mono);
  font-size: 15.5px;
  letter-spacing: .01em;
}
a.crow-v { transition: color .3s ease; }
a.crow-v:hover { color: var(--red); }

.copy {
  font-size: 9px;
  padding: 7px 11px;
  border: 1px solid var(--line-2);
  border-radius: 2px;
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
  transition: background .3s ease, color .3s ease, border-color .3s ease;
}
.copy:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.copy.is-done { background: var(--red); border-color: var(--red); color: #fff; }

/* ==========================================================================
   footer
   ========================================================================== */

.ftr {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--line);
  background: var(--paper-2);
}
.ftr-grid {
  display: grid;
  grid-template-columns: 1.55fr 1fr 1fr 1.25fr;
  gap: 30px;
  padding: 46px 0 44px;
  border-bottom: 1px solid var(--line);
}
.brand-lg .brand-mark { height: 40px; }
.brand-lg .brand-txt strong { font-size: 15px; letter-spacing: .18em; }
.brand-lg .brand-txt em { font-size: 10px; }
.ftr-desc {
  margin-top: 18px;
  font-size: 13px;
  line-height: 1.95;
  color: var(--ink-2);
  max-width: 36ch;
}
.ftr-h { font-size: 9px; color: var(--red); margin-bottom: 14px; }
.ftr-col a {
  display: block;
  padding: 5px 0;
  font-size: 13px;
  color: var(--ink-2);
  transition: color .3s ease, transform .4s var(--ease);
}
.ftr-col a:hover { color: var(--ink); transform: translateX(4px); }
.ftr-addr {
  display: block;
  margin-top: 12px;
  font-size: 11.5px;
  line-height: 1.9;
  color: var(--mute);
  max-width: 26ch;
}

.ftr-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 0;
  font-size: 9px;
  color: var(--mute);
}
.ftr-bar-mid { color: var(--line-2); letter-spacing: .2em; }
.beian {
  color: var(--ink-2);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .02em;
  padding-left: 12px;
  border-left: 1px solid var(--line-2);
  transition: color .3s ease;
  white-space: nowrap;
}
.beian:hover { color: var(--red); }
.beian:hover { color: var(--ink); }
.ftr-bar-ic { display: inline-flex; align-items: center; gap: 12px; }
.ftr-bar .ic {
  display: inline-grid;
  place-items: center;
  width: 22px; height: 22px;
  border: 1px solid var(--line-2);
  color: var(--ink-2);
  transition: background .3s ease, color .3s ease;
}
.ftr-bar .ic:hover { background: var(--ink); color: var(--paper); }

.wordmark {
  margin: 6px 0 -1.6vw;
  text-align: center;
  font-size: clamp(52px, 16vw, 240px);
  line-height: .95;
  font-weight: 800;
  letter-spacing: -.05em;
  white-space: nowrap;
  color: transparent;
  -webkit-text-stroke: 1px rgba(18, 18, 15, .18);
  background-image: repeating-linear-gradient(45deg, rgba(18, 18, 15, .2) 0 1px, transparent 1px 7px);
  -webkit-background-clip: text;
  background-clip: text;
  user-select: none;
  transform: translateY(var(--wm, 0px)) scale(1.02);
  transform-origin: 50% 100%;
  overflow: visible;
  transition: transform 1.1s var(--ease);
}
.wordmark span {
  display: inline-block;
  transition: transform .6s var(--ease), color .4s ease;
}
.wordmark span:hover { transform: translateY(-14px); color: rgba(255, 43, 28, .55); }

/* ==========================================================================
   toast
   ========================================================================== */

.toast {
  position: fixed;
  left: 50%;
  bottom: 30px;
  z-index: 250;
  padding: 11px 18px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
  border-radius: 2px;
  opacity: 0;
  transform: translate(-50%, 14px);
  transition: opacity .35s ease, transform .45s var(--ease);
  pointer-events: none;
}
.toast.is-on { opacity: 1; transform: translate(-50%, 0); }

/* ==========================================================================
   reveal system
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  transition-delay: var(--d, 0s);
}
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .boot { display: none; }
}

/* ==========================================================================
   responsive
   ========================================================================== */

@media (max-width: 1180px) {
  .rails { display: none; }
}

@media (max-width: 1080px) {
  .clock { display: none; }
  .live { display: none; }
}

@media (max-width: 980px) {
  .menu-btn { display: inline-flex; }
  .nav {
    position: absolute;
    top: 100%; left: 0; right: 0;
    height: calc(100vh - 62px);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px var(--gutter) 24px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    overflow-y: auto;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .35s ease, transform .45s var(--ease), visibility .35s;
  }
  .nav.is-open { opacity: 1; transform: none; visibility: visible; }
  .hdr.is-dark .nav.is-open {
    background: var(--paper);
    border-bottom-color: var(--line);
  }
  .hdr.is-dark .nav a { color: var(--ink-2); border-bottom-color: var(--line); }
  .hdr.is-dark .nf-h { color: var(--red); }
  .hdr.is-dark .nav .nf-mail { color: var(--ink); }
  .hdr.is-dark .nav .nf-addr { color: var(--mute); }
  .nav a { padding: 14px 4px; border-bottom: 1px solid var(--line); font-size: 14px; }
  .nav a::after { display: none; }
  .nav-foot { display: block; margin-top: auto; padding: 26px 4px 8px; }
  .nf-h {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--mute);
    margin-bottom: 12px;
  }
  .nav .nf-mail {
    display: block;
    font-family: var(--mono);
    font-size: 13px;
    letter-spacing: .02em;
    padding: 7px 0;
    color: var(--ink);
    border: 0;
  }
  .nav .nf-mail:hover { color: var(--red); }
  .nav .nf-addr { font-size: 12px; color: var(--mute); margin-top: 12px; line-height: 1.8; }

  .about { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .svc-grid { grid-template-columns: 1fr; }
  .svc { border-right: 0; border-bottom: 1px solid var(--line); }
  .svc:last-child { border-bottom: 0; }
  .steps { grid-template-columns: 1fr 1fr; }
  .step:nth-child(2) { border-right: 0; }
  .step:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .ftr-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
}

@media (max-width: 720px) {
  body { font-size: 14.5px; }
  .hdr-cta { display: none; }
  .live { display: none; }
  .hero { padding-top: 104px; }
  .hero-core { padding-top: 44px; }
  .hero-meta { font-size: 8.5px; gap: 10px; }
  .hero-meta .hm-mid { display: none; }
  .hero-meta .hair:nth-of-type(2) { display: none; }
  .display { font-size: clamp(28px, 8.4vw, 46px); }
  .hero-lead { font-size: 14px; line-height: 1.95; }
  .hero-foot { margin-top: 40px; padding-top: 12px; flex-wrap: wrap; gap: 8px; }
  .cue { margin-top: 26px; }
  .hero-act { gap: 12px; }
  .hero-lead { margin-bottom: 28px; }
  .btn-line { border-bottom: 0; }
  .statement { padding: 60px 0 64px; }
  .statement .st-text { font-size: clamp(20px, 6.2vw, 30px); }
  .band-meta { font-size: 7.5px; letter-spacing: .16em; }
  .band-meta-tl { top: 66px; font-size: 7.5px; }
  .band-meta-br { display: none; }
  .flow-hint { font-size: 7.5px; letter-spacing: .12em; }
  .flow-hint { bottom: 16px; font-size: 8px; }
  .st-foot { margin-top: 26px; gap: 10px; font-size: 8.5px; }
  .st-dash { width: 24px; }
  .brand-mark { height: 26px; }
  .brand-lg .brand-mark { height: 34px; }
  .hero-foot-mid { width: 100%; order: 3; }
  .btn-mag { width: 100%; justify-content: center; }
  .btn-line { width: auto; }

  .crow { grid-template-columns: 1fr; gap: 8px; padding: 16px 14px; }
  .crow:hover { padding-left: 18px; }
  .crow-v { font-size: 15.5px; }
  .copy { justify-self: start; }
  .steps { grid-template-columns: 1fr; }
  .step { border-right: 0; border-bottom: 1px solid var(--line); }
  .step:last-child { border-bottom: 0; }
  .ftr-grid { grid-template-columns: 1fr 1fr; gap: 26px 20px; }
  .ftr-brand { grid-column: 1 / -1; }
  .ftr-desc { max-width: none; }
  .ftr-col:nth-child(4) { grid-column: 1 / -1; }
  .ftr-bar {
    flex-wrap: wrap;
    gap: 8px 10px;
    padding: 14px 0 16px;
  }
  .ftr-bar > span:first-child { width: 100%; }
  .ftr-bar-mid { display: none; }
  .ftr-bar-ic { width: 100%; justify-content: space-between; }
  .beian { border-left: 0; padding-left: 0; font-size: 10.5px; }
  .wordmark { margin-bottom: -0.4vw; }
  .hint-d { display: none; }
  .hint-m { display: inline; }
  .band-meta-br { display: none; }
  .stats { grid-template-columns: 1fr 1fr; }
}

/* ==========================================================================
   multi-page system: home entries · subpage hero · product & case modules
   ========================================================================== */

/* ---------- home: two compact hero entries ---------- */
.entry { padding: clamp(44px, 5.6vw, 78px) 0 clamp(10px, 1.6vw, 18px); }
.entry-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(14px, 1.8vw, 22px);
}
.entry-c {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: clamp(240px, 24vw, 308px);
  padding: clamp(24px, 2.8vw, 34px);
  border: 1px solid var(--line-2);
  background: radial-gradient(124% 120% at 18% 0%, #f8f6f1 0%, #f1efe9 58%, #e9e6df 100%);
  overflow: hidden;
  transition: border-color .45s ease, transform .6s var(--ease), background .45s ease;
}
.entry-c::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(18, 18, 15, .06) 1px, transparent 1px) 0 0 / 25% 100%;
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 82%);
  mask-image: linear-gradient(to bottom, #000, transparent 82%);
}
.entry-c::after {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 1px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .7s var(--ease);
}
.entry-c > * { position: relative; z-index: 2; }
.entry-c:hover { border-color: var(--ink); transform: translateY(-2px); }
.entry-c:hover::after { transform: scaleX(1); }
.entry-c .label { font-size: 9px; }
.entry-c h2 {
  margin: 16px 0 7px;
  font-size: clamp(22px, 2.7vw, 35px);
  font-weight: 700;
  letter-spacing: -.022em;
  line-height: 1.15;
}
.entry-c h2 em { font-style: normal; color: var(--red); }
.entry-en {
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mute);
}
.entry-desc {
  margin: 16px 0 20px;
  font-size: 13.4px;
  line-height: 1.9;
  color: var(--ink-2);
  max-width: 46ch;
}
.entry-go {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink);
  transition: color .35s ease;
}
.entry-go i { font-style: normal; color: var(--red); transition: transform .45s var(--ease); }
.entry-c:hover .entry-go i { transform: translateX(6px); }

/* ---------- subpage hero ---------- */
.hero-sub { padding-top: 104px; }
.hero-sub .hero-core { padding-top: 40px; }
.hero-sub .display { font-size: clamp(28px, 5.1vw, 64px); }
.hero-sub .display .w-1 { font-weight: 700; }
.hero-sub .hero-lead { max-width: 704px; margin-bottom: 30px; }
.hero-sub .hero-foot { margin-top: clamp(30px, 3.6vw, 44px); }
.hero-facts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 26px;
  margin-top: 28px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.hero-facts span::before { content: "+"; color: var(--red); margin-right: 7px; }

/* ---------- product: spec grid ---------- */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  background: var(--paper);
}
.spec {
  padding: 24px 22px 26px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background .4s ease;
}
.spec:hover { background: var(--paper-3); }
.spec-k {
  display: block;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--red);
}
.spec h3 {
  margin: 13px 0 8px;
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: -.012em;
}
.spec p { font-size: 13px; line-height: 1.9; color: var(--ink-2); }

/* ---------- chips ---------- */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(28px, 3.4vw, 40px);
}
.chip {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .04em;
  padding: 7px 12px;
  border: 1px solid var(--line-2);
  color: var(--ink-2);
  background: var(--paper);
  transition: border-color .35s ease, color .35s ease, background .35s ease;
}
.chip:hover { border-color: var(--red); color: var(--ink); background: #fff; }

/* ---------- about side panel ---------- */
.about-side {
  border-top: 1px solid var(--line-2);
  border-left: 1px solid var(--line-2);
  background: var(--paper-2);
}
.as-h {
  padding: 16px 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--red);
}
.about-side li {
  padding: 12px 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.7;
  color: var(--ink-2);
  transition: background .35s ease, color .35s ease;
}
.about-side li:hover { background: var(--paper-3); color: var(--ink); }

/* ---------- steps: 3 columns ---------- */
.steps-3 { grid-template-columns: repeat(3, 1fr); }

/* ---------- promise strip ---------- */
.promise {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  margin-top: clamp(28px, 3.6vw, 44px);
  border-top: 1px solid var(--line-2);
  border-left: 1px solid var(--line-2);
}
.promise li {
  padding: 20px 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.promise b {
  display: block;
  margin-bottom: 9px;
  font-family: var(--mono);
  font-size: 8.5px;
  font-weight: 400;
  letter-spacing: .16em;
  color: var(--red);
}
.promise span { font-size: 13.5px; font-weight: 600; letter-spacing: -.01em; }

/* ---------- case grid ---------- */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(14px, 1.8vw, 22px);
}
.case {
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: var(--paper-2);
  transition: border-color .45s ease, background .45s ease;
}
.case:hover { border-color: var(--line-2); background: #fff; }
.case-fig {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.case-fig img {
  display: block;
  width: 100%;
  height: auto;
  mix-blend-mode: multiply;
  transition: transform .9s var(--ease);
}
.case:hover .case-fig img { transform: scale(1.035); }
.case-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 20px 20px 22px;
}
.case-top { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.case-kind {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .13em;
  color: var(--red);
  text-transform: uppercase;
}
.case-n { font-family: var(--mono); font-size: 9px; letter-spacing: .13em; color: var(--mute); }
.case h3 { margin: 9px 0 12px; font-size: 18px; font-weight: 700; letter-spacing: -.012em; }
.case ul { margin-top: auto; }
.case li {
  position: relative;
  padding-left: 14px;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.95;
  color: var(--ink-2);
  transition: color .35s ease;
}
.case li::before { content: "+"; position: absolute; left: 0; color: var(--red); }
.case:hover li { color: var(--ink); }

@media (max-width: 1080px) {
  .spec-grid { grid-template-columns: 1fr 1fr; }
  .promise { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 980px) {
  .entry-grid { grid-template-columns: 1fr; }
  .entry-c { min-height: 0; }
  .case-grid { grid-template-columns: 1fr 1fr; }
  .steps-3 { grid-template-columns: 1fr; }
  .steps-3 .step { border-right: 0; border-bottom: 1px solid var(--line); }
  .steps-3 .step:last-child { border-bottom: 0; }
  .about-side { margin-top: 4px; }
}

@media (max-width: 720px) {
  .entry { padding: 34px 0 6px; }
  .entry-c h2 { font-size: 25px; }
  .entry-desc { font-size: 13px; }
  .hero-sub { padding-top: 96px; }
  .hero-sub .display { font-size: clamp(25px, 7.4vw, 38px); }
  .hero-sub .hero-core { padding-top: 32px; }
  .hero-facts { font-size: 8.5px; gap: 6px 16px; margin-top: 22px; }
  .spec-grid { grid-template-columns: 1fr; }
  .promise { grid-template-columns: 1fr 1fr; }
  .promise li { padding: 16px 14px; }
  .case-grid { grid-template-columns: 1fr; }
  .case-body { padding: 18px 18px 20px; }
  .about-side li { font-size: 11px; }
}

/* ==========================================================================
   cases: devices & software (after the 15 scenes)
   ========================================================================== */

.dev-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(14px, 1.8vw, 22px);
}
.dev {
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: var(--paper);
  transition: border-color .45s ease, background .45s ease;
}
.dev:hover { border-color: var(--line-2); background: #fff; }
.dev-fig { position: relative; border-bottom: 1px solid var(--line); }
.dev-fig img {
  display: block;
  width: 100%;
  height: auto;
  mix-blend-mode: multiply;
  transition: transform .9s var(--ease);
}
.dev:hover .dev-fig img { transform: scale(1.03); }
.dev-body { padding: 20px 20px 22px; }
.dev-k {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--red);
}
.dev h3 { margin: 8px 0 12px; font-size: 18px; font-weight: 700; letter-spacing: -.012em; }
.dev ul li {
  position: relative;
  padding-left: 14px;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.95;
  color: var(--ink-2);
  transition: color .35s ease;
}
.dev ul li::before { content: "+"; position: absolute; left: 0; color: var(--red); }
.dev:hover ul li { color: var(--ink); }

.dev-note {
  margin: clamp(14px, 1.8vw, 20px) 0 clamp(30px, 4vw, 46px);
  padding: 16px 18px;
  border-left: 2px solid var(--red);
  background: var(--paper);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.9;
  letter-spacing: .02em;
  color: var(--ink-2);
}

.promise-4 { grid-template-columns: repeat(4, 1fr); margin-top: clamp(32px, 4vw, 48px); }

.dev-deploy {
  margin-top: 16px;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--ink-2);
}
.dev-deploy strong { color: var(--ink); font-weight: 600; box-shadow: inset 0 -1px 0 rgba(255, 43, 28, .55); }

@media (max-width: 1080px) {
  .dev-grid { grid-template-columns: 1fr 1fr; }
  .promise-4 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .dev-grid { grid-template-columns: 1fr; }
  .dev-body { padding: 18px 18px 20px; }
  .dev-note { font-size: 10.5px; }
  .promise-4 { grid-template-columns: 1fr 1fr; }
}

/* ==========================================================================
   cases: headline figures band
   ========================================================================== */

.databand {
  padding: clamp(30px, 3.6vw, 48px) 0 clamp(8px, 1.4vw, 14px);
}
.stats-4 {
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  background: var(--paper);
}
.stats-4 .stat { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stats-4 .stat-num { font-size: clamp(26px, 2.9vw, 36px); }

@media (max-width: 980px) {
  .stats-4 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .stats-4 { grid-template-columns: 1fr 1fr; }
  .stats-4 .stat { padding: 18px 16px; }
  .stats-4 .stat-num { font-size: 26px; }
  .stats-4 .stat-k { font-size: 8.5px; margin-top: 9px; }
}