/* =========================================================
   创辛智启 · 设计系统
   极简 / 纸白 + 墨黑 / 信号青 / 大字排版 / 细线分隔
   ========================================================= */

:root {
  --paper: #F6F6F3;
  --paper-2: #EFEFEA;
  --ink: #0F1110;
  --ink-2: #171A18;
  --muted: #6E7370;
  --line: rgba(15, 17, 16, .12);
  --line-strong: rgba(15, 17, 16, .22);
  --signal: #00D08A;
  --signal-ink: #00A46C;
  --max: 1200px;
  --gutter: 80px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  --font-sans: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", ui-monospace, Consolas, "Courier New", monospace;
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
.nowrap { white-space: nowrap; }
ul, ol, dl, dd { margin: 0; padding: 0; }
li { list-style: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }

h1, h2, h3, h4 { margin: 0; font-weight: 600; }

::selection { background: var(--signal); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--signal-ink);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 12px 20px;
  background: var(--ink);
  color: var(--paper);
  z-index: 100;
  font-size: 13px;
}
.skip:focus { left: 12px; top: 12px; }

.wrap {
  width: 100%;
  max-width: calc(var(--max) + var(--gutter) * 2);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ---------------- typography roles ---------------- */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}
.eyebrow__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal);
  flex: none;
}
.eyebrow--light { color: rgba(246, 246, 243, .55); }

.h2 {
  font-size: clamp(30px, 3.4vw, 48px);
  line-height: 1.18;
  letter-spacing: -.025em;
  font-weight: 600;
}

.sec__note {
  margin: 20px 0 0;
  max-width: 30ch;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

/* ---------------- nav ---------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  color: var(--ink);
  transition: background-color .4s var(--ease), color .4s var(--ease), box-shadow .4s var(--ease);
}
.nav__inner {
  position: relative;
  z-index: 2;
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

body[data-nav="on-dark"] .nav:not(.is-solid):not(.is-open) { color: var(--paper); }
body[data-nav="on-dark"] .nav:not(.is-solid):not(.is-open) .nav__cta:hover { color: var(--signal); border-color: var(--signal); }

.nav.is-solid {
  background: rgba(246, 246, 243, .86);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  color: var(--ink);
  box-shadow: 0 1px 0 var(--line);
}
.nav.is-open {
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 1px 0 var(--line);
}

.brand { position: relative; z-index: 3; display: flex; align-items: center; gap: 12px; }
.brand__mark {
  width: 24px;
  height: 24px;
  flex: none;
  overflow: visible;
}
.brand__frame {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: square;
  stroke-linejoin: miter;
}
.brand__dot {
  fill: var(--signal);
  transform-box: fill-box;
  transform-origin: center;
  transition: transform .45s var(--ease);
}
.brand:hover .brand__dot { transform: translateX(1.5px); }

.brand__name {
  display: flex;
  flex-direction: column;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -.01em;
  line-height: 1.1;
}
.brand__en {
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 400;
  letter-spacing: .14em;
  opacity: .55;
  margin-top: 3px;
}

.nav__menu { display: flex; align-items: center; gap: 36px; }
.nav__menu a {
  position: relative;
  font-size: 14px;
  opacity: .72;
  transition: opacity .25s var(--ease);
}
.nav__menu a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 1px;
  background: var(--signal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}
.nav__menu a:hover { opacity: 1; }
.nav__menu a:hover::after { transform: scaleX(1); }
.nav__menu a[aria-current="page"] { opacity: 1; }
.nav__menu a[aria-current="page"]::after { transform: scaleX(1); }

.nav__cta {
  height: 40px;
  padding: 0 20px;
  border: 1px solid currentColor;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}
.nav__cta:hover { color: var(--signal-ink); border-color: var(--signal-ink); }

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  border: 0;
  color: currentColor;
  cursor: pointer;
}
.nav__bar {
  display: block;
  width: 22px;
  height: 1.5px;
  background: currentColor;
  transition: transform .3s var(--ease);
}
.nav__toggle[aria-expanded="true"] .nav__bar:first-child { transform: translateY(3.75px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] .nav__bar:last-child { transform: translateY(-3.75px) rotate(-45deg); }

/* ---------------- buttons / links ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 52px;
  padding: 0 30px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 14px;
  letter-spacing: .01em;
  cursor: pointer;
  transition: background-color .3s var(--ease), color .3s var(--ease), transform .3s var(--ease);
}
.btn--solid {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.btn--solid:hover {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--ink);
  transform: translateY(-1px);
}
.btn--ghost {
  height: 44px;
  padding: 0 22px;
  border: 1px solid var(--line-strong);
  font-size: 13px;
  background: transparent;
}
.btn--ghost:hover { border-color: var(--signal-ink); color: var(--signal-ink); }

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--line-strong);
  transition: color .25s var(--ease), border-color .25s var(--ease);
}
.link-more span { transition: transform .3s var(--ease); }
.link-more:hover { color: var(--signal-ink); border-color: var(--signal-ink); }
.link-more:hover span { transform: translateX(4px); }
.link-more--light { border-color: rgba(246, 246, 243, .3); }
.link-more--light:hover { color: var(--signal); border-color: var(--signal); }

.tick { color: var(--signal); }

/* ---------------- hero ---------------- */
.hero {
  position: relative;
  min-height: 100svh;
  background: var(--ink);
  color: var(--paper);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 124px 0 0;
  overflow: hidden;
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(246, 246, 243, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(246, 246, 243, .07) 1px, transparent 1px);
  background-size: 84px 84px;
  -webkit-mask-image: radial-gradient(circle at 55% 42%, #000 0%, transparent 72%);
  mask-image: radial-gradient(circle at 55% 42%, #000 0%, transparent 72%);
  pointer-events: none;
}
.hero__glow {
  position: absolute;
  top: 0;
  left: 0;
  width: 760px;
  height: 760px;
  margin: -380px 0 0 -380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 208, 138, .22) 0%, rgba(0, 208, 138, 0) 65%);
  transform: translate3d(60vw, 40vh, 0);
  pointer-events: none;
  will-change: transform;
}
.hero__inner {
  flex: 1;
  display: grid;
  grid-template-columns: 1.12fr .88fr;
  align-items: center;
  gap: 48px;
  padding-top: 32px;
}
.hero__copy { position: relative; z-index: 1; }
.hero__title {
  margin: 26px 0 0;
  font-size: clamp(42px, 6.1vw, 88px);
  line-height: 1.1;
  letter-spacing: -.035em;
  font-weight: 600;
}
.hero__lede {
  margin: 30px 0 0;
  max-width: 34ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(246, 246, 243, .62);
}
.hero__actions {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-top: 44px;
  flex-wrap: wrap;
}
.hero .btn--solid {
  background: var(--paper);
  border-color: var(--paper);
  color: var(--ink);
}
.hero .btn--solid:hover {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--ink);
}
.hero__visual {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* 首屏线框球体 + HUD */
.globe-frame {
  position: relative;
  width: min(100%, 460px);
  aspect-ratio: 1;
  transition: transform .4s var(--ease);
}
.globe-canvas {
  display: block;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity .9s var(--ease);
  will-change: transform;
}
.globe-canvas.is-ready { opacity: 1; }

.hud {
  position: absolute;
  inset: -10px;
  pointer-events: none;
}
.hud__corner {
  position: absolute;
  width: 16px;
  height: 16px;
  border: 0 solid rgba(246, 246, 243, .28);
}
.hud__corner--tl { top: 0; left: 0; border-top-width: 1px; border-left-width: 1px; }
.hud__corner--tr { top: 0; right: 0; border-top-width: 1px; border-right-width: 1px; }
.hud__corner--bl { bottom: 0; left: 0; border-bottom-width: 1px; border-left-width: 1px; }
.hud__corner--br { bottom: 0; right: 0; border-bottom-width: 1px; border-right-width: 1px; }
.hud__label {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: rgba(246, 246, 243, .38);
  white-space: nowrap;
}
.hud__label--top { top: -24px; left: 0; }
.hud__label--bottom { bottom: -26px; right: 0; text-align: right; }
.hud__label--side {
  top: 50%;
  right: -34px;
  transform: rotate(90deg) translateY(-50%);
  transform-origin: right center;
}

/* 首屏扫描线 */
.hero__scan {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  z-index: 0;
  background: linear-gradient(90deg, transparent, rgba(0, 208, 138, .5), transparent);
  opacity: 0;
  pointer-events: none;
  animation: hero-scan 11s linear infinite;
}
@keyframes hero-scan {
  0% { transform: translateY(0); opacity: 0; }
  8% { opacity: .55; }
  92% { opacity: .55; }
  100% { transform: translateY(100svh); opacity: 0; }
}

/* 首屏入场：逐行遮罩 + 文案上浮 */
html.js .hero__title .line { display: block; overflow: hidden; }
html.js .hero__title .line > span {
  display: block;
  transform: translateY(112%);
  animation: hero-line 1s var(--ease) forwards;
}
html.js .hero__title .line:nth-child(1) > span { animation-delay: .18s; }
html.js .hero__title .line:nth-child(2) > span { animation-delay: .3s; }
@keyframes hero-line { to { transform: translateY(0); } }

html.js .hero .eyebrow,
html.js .hero__lede,
html.js .hero__actions,
html.js .hero__meta li {
  opacity: 0;
  animation: hero-fade .8s var(--ease) forwards;
}
html.js .hero .eyebrow { animation-delay: .1s; }
html.js .hero__lede { animation-delay: .58s; }
html.js .hero__actions { animation-delay: .7s; }
html.js .hero__meta li:nth-child(1) { animation-delay: .82s; }
html.js .hero__meta li:nth-child(2) { animation-delay: .88s; }
html.js .hero__meta li:nth-child(3) { animation-delay: .94s; }
html.js .hero__meta li:nth-child(4) { animation-delay: 1s; }
@keyframes hero-fade {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}

.caret {
  display: inline-block;
  width: .09em;
  height: .7em;
  margin-left: .1em;
  background: var(--signal);
  vertical-align: -.02em;
  animation: caret-blink 1.15s steps(1, end) infinite;
}
@keyframes caret-blink { 50% { opacity: 0; } }

.hero__meta {
  display: flex;
  gap: 44px;
  margin: 0;
  padding: 26px 0;
  border-top: 1px solid rgba(246, 246, 243, .14);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(246, 246, 243, .45);
}

/* ---------------- sections ---------------- */
.sec { padding: 120px 0; border-top: 1px solid var(--line); scroll-margin-top: 96px; }
.sec--flush { border-top: 0; padding-top: 72px; }

.sec__head { margin-bottom: 56px; }
.sec__head-main {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-top: 28px;
  flex-wrap: wrap;
}

/* ---------------- capabilities ---------------- */
.caps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}
.cap {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 240px;
  padding: 36px 32px 40px;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  transition: background-color .35s var(--ease);
}
.cap:nth-child(3n) { border-right: 0; }
.cap:hover { background: rgba(15, 17, 16, .025); }
.cap__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--muted);
}
.cap h3 {
  margin: 28px 0 12px;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -.015em;
}
.cap p {
  margin: 0;
  max-width: 30ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}
.cap__arrow {
  margin-top: auto;
  align-self: flex-end;
  font-size: 18px;
  line-height: 1;
  color: var(--signal-ink);
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity .35s var(--ease), transform .35s var(--ease);
}
.cap:hover .cap__arrow { opacity: 1; transform: none; }
.cap--more { justify-content: space-between; }
.cap__more-text {
  margin-top: 28px;
  font-size: 20px;
  line-height: 1.45;
  letter-spacing: -.015em;
}
.cap::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: var(--signal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .45s var(--ease);
}
.cap:hover::after { transform: scaleX(1); }
.cap__num { transition: color .35s var(--ease); }
.cap:hover .cap__num { color: var(--signal-ink); }

/* ---------------- services accordion ---------------- */
.services {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 72px;
  align-items: start;
}
.services__aside { position: sticky; top: 116px; }
.services__list { border-top: 1px solid var(--line); }
.acc { border-bottom: 1px solid var(--line); }
.acc__h { font-weight: inherit; }
.acc__head {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 26px 0;
  background: none;
  border: 0;
  color: inherit;
  text-align: left;
  cursor: pointer;
}
.acc__num {
  width: 32px;
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--muted);
}
.acc__title {
  flex: 1;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -.015em;
  transition: color .3s var(--ease);
}
.acc__head:hover .acc__title { color: var(--signal-ink); }
.acc__icon {
  position: relative;
  width: 14px;
  height: 14px;
  flex: none;
  color: var(--muted);
}
.acc__icon::before,
.acc__icon::after {
  content: "";
  position: absolute;
  background: currentColor;
}
.acc__icon::before { left: 0; top: 6.25px; width: 14px; height: 1.5px; }
.acc__icon::after { left: 6.25px; top: 0; width: 1.5px; height: 14px; transition: transform .3s var(--ease); }
.acc.is-open .acc__icon::after { transform: scaleY(0); }

.acc__body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .4s var(--ease);
}
.acc.is-open .acc__body { grid-template-rows: 1fr; }
.acc__inner {
  overflow: hidden;
  min-height: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding-left: 56px;
}
.acc__col { padding-bottom: 36px; font-size: 14px; line-height: 1.8; color: var(--muted); }
.acc__col p { margin: 0 0 12px; }
.acc__lead { color: var(--ink); font-size: 15px; }
.acc__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}
.acc__list { display: flex; flex-direction: column; gap: 9px; margin-bottom: 20px; }
.acc__list li { position: relative; padding-left: 16px; color: var(--ink); font-size: 14px; }
.acc__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 5px;
  height: 1px;
  background: var(--signal-ink);
}
.acc__stack {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------------- process ---------------- */
.steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
}
.steps__bar {
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--signal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s linear;
}
.step { position: relative; padding: 40px 32px 0 0; }
.step:not(:first-child) { padding-left: 32px; border-left: 1px solid var(--line); }
.step::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--paper);
  transition: background-color .4s var(--ease), border-color .4s var(--ease);
}
.step.is-active::before { background: var(--signal); border-color: var(--signal); }
.step__num {
  font-family: var(--font-mono);
  font-size: 26px;
  letter-spacing: .04em;
  color: var(--muted);
  transition: color .4s var(--ease);
}
.step.is-active .step__num { color: var(--signal-ink); }
.step h3 {
  margin: 22px 0 8px;
  font-size: 18px;
  font-weight: 500;
}
.step p { margin: 0; max-width: 26ch; font-size: 14px; line-height: 1.75; color: var(--muted); }

/* ---------------- marquee ---------------- */
.marquee {
  overflow: hidden;
  background: var(--ink);
  padding: 26px 0;
}
.marquee__track {
  display: flex;
  align-items: center;
  gap: 0;
  width: max-content;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: rgba(246, 246, 243, .4);
  white-space: nowrap;
  animation: marquee 38s linear infinite;
}
.marquee__track span { display: inline-flex; align-items: center; }
.marquee__track span::after {
  content: "";
  width: 4px;
  height: 4px;
  margin: 0 32px;
  border-radius: 50%;
  background: var(--signal);
  opacity: .55;
}
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------------- news ---------------- */
.news-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  border-top: 1px solid var(--line);
}
.post {
  position: relative;
  display: block;
  padding: 44px 48px 44px 0;
  border-bottom: 1px solid var(--line);
  transition: background-color .35s var(--ease);
}
.post--lead {
  grid-row: span 2;
  display: flex;
  flex-direction: column;
  padding-left: 40px;
  margin-left: -40px;
  border-right: 1px solid var(--line);
}
.post:not(.post--lead) { padding-left: 48px; }
.post:hover { background: rgba(15, 17, 16, .02); }
.post__meta {
  display: flex;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}
.post__title {
  margin: 22px 0 14px;
  font-size: 21px;
  line-height: 1.45;
  letter-spacing: -.015em;
  font-weight: 500;
  max-width: 34ch;
}
.post--lead .post__title {
  margin-top: 26px;
  font-size: clamp(26px, 2.6vw, 36px);
  line-height: 1.32;
  max-width: 17ch;
}
.post__sum {
  margin: 0;
  max-width: 48ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}
.post--lead .post__sum { max-width: 34ch; }
.post__arrow {
  position: absolute;
  top: 46px;
  right: 40px;
  font-size: 18px;
  color: var(--signal-ink);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity .3s var(--ease), transform .3s var(--ease);
}
.post:hover .post__arrow { opacity: 1; transform: none; }
.post:hover .post__title { text-decoration: underline; text-underline-offset: 6px; text-decoration-thickness: 1px; }

/* ---------------- cta ---------------- */
.cta { padding: 160px 0; border-top: 1px solid var(--line); }
.cta__inner { text-align: center; }
.cta__title {
  margin: 0 0 48px;
  font-size: clamp(30px, 4.2vw, 58px);
  line-height: 1.22;
  letter-spacing: -.03em;
  font-weight: 600;
}
.cta__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

/* ---------------- footer ---------------- */
.footer {
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
  padding-top: 80px;
}
.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1.3fr;
  gap: 48px;
  padding-bottom: 64px;
  border-bottom: 1px solid rgba(246, 246, 243, .14);
}
.footer__logo {
  display: block;
  margin-bottom: 20px;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -.02em;
}
.footer__brand p {
  margin: 0;
  font-size: 13px;
  line-height: 1.85;
  color: rgba(246, 246, 243, .5);
}
.footer__nav { display: flex; flex-direction: column; gap: 12px; font-size: 14px; }
.footer__nav a { color: rgba(246, 246, 243, .55); transition: color .25s var(--ease); }
.footer__nav a:hover { color: var(--signal); }
.footer__label {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  color: rgba(246, 246, 243, .38);
}
.footer__contact a { font-size: 15px; }
.footer__contact p {
  margin: 12px 0 0;
  max-width: 30ch;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(246, 246, 243, .5);
}
.footer__wordmark {
  padding: 48px var(--gutter) 0;
  font-size: clamp(64px, 14vw, 190px);
  line-height: .86;
  letter-spacing: -.055em;
  font-weight: 600;
  color: rgba(246, 246, 243, .08);
  white-space: nowrap;
  user-select: none;
}
.footer__legal {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding-top: 32px;
  padding-bottom: 44px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .08em;
  color: rgba(246, 246, 243, .36);
}

/* ---------------- inner page ---------------- */
.page-hero {
  padding: 168px 0 76px;
  border-bottom: 1px solid var(--line);
}
.page-title {
  margin: 26px 0 24px;
  font-size: clamp(38px, 5vw, 76px);
  line-height: 1.08;
  letter-spacing: -.035em;
  font-weight: 600;
}
.page-lede {
  margin: 0;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}
.page-hero--dark {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  border-bottom: 0;
}
.page-hero--dark .page-lede { color: rgba(246, 246, 243, .58); }
.page-hero--dark .eyebrow { color: rgba(246, 246, 243, .5); }
.page-hero--dark::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(246, 246, 243, .06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(246, 246, 243, .06) 1px, transparent 1px);
  background-size: 84px 84px;
  -webkit-mask-image: radial-gradient(circle at 82% 46%, #000 0%, transparent 68%);
  mask-image: radial-gradient(circle at 82% 46%, #000 0%, transparent 68%);
  pointer-events: none;
}
.page-hero--dark::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 208, 138, .45), transparent);
  opacity: 0;
  animation: page-scan 10s linear infinite;
  pointer-events: none;
}
@keyframes page-scan {
  0% { top: 0; opacity: 0; }
  12% { opacity: .5; }
  88% { opacity: .5; }
  100% { top: 100%; opacity: 0; }
}
.page-hero .wrap { position: relative; z-index: 1; }

/* 内页点睛装饰 */
.deco {
  position: absolute;
  right: calc(var(--gutter) + 8px);
  top: 50%;
  width: 300px;
  height: 300px;
  margin-top: -150px;
  z-index: 0;
  opacity: .82;
  pointer-events: none;
}
.deco__line { fill: none; stroke: rgba(246, 246, 243, .2); stroke-width: 1; }
.deco__line--strong { stroke: rgba(246, 246, 243, .36); }
.deco__dot { fill: rgba(246, 246, 243, .45); }
.deco__dot--signal { fill: var(--signal); }
.deco__draw {
  fill: none;
  stroke: rgba(246, 246, 243, .48);
  stroke-width: 1;
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  animation: deco-draw 2.8s var(--ease) forwards .3s;
}
@keyframes deco-draw { to { stroke-dashoffset: 0; } }
.deco__wave {
  fill: none;
  stroke: rgba(246, 246, 243, .32);
  stroke-width: 1;
  stroke-dasharray: 30 70;
  animation: deco-wave 8s linear infinite;
}
@keyframes deco-wave { to { stroke-dashoffset: -100; } }
.deco__rings { transform-origin: 50% 50%; animation: deco-spin 44s linear infinite; }
.deco__rings--reverse { animation-duration: 68s; animation-direction: reverse; }
@keyframes deco-spin { to { transform: rotate(360deg); } }
.deco__halo {
  transform-box: fill-box;
  transform-origin: center;
  animation: deco-halo 3s var(--ease) infinite;
}
@keyframes deco-halo {
  0% { transform: scale(.5); opacity: .75; }
  70%, 100% { transform: scale(1.9); opacity: 0; }
}

.prose-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}
.prose-2 p { margin: 0 0 18px; }
.prose-2 p:first-child { color: var(--ink); font-size: 18px; line-height: 1.75; }

.values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}
.value { padding: 36px 32px 44px 0; border-bottom: 1px solid var(--line); }
.value:not(:first-child) { padding-left: 32px; border-left: 1px solid var(--line); }
.value__num { font-family: var(--font-mono); font-size: 11px; letter-spacing: .14em; color: var(--muted); }
.value h3 { margin: 26px 0 10px; font-size: 19px; font-weight: 500; letter-spacing: -.015em; }
.value p { margin: 0; max-width: 28ch; font-size: 14px; line-height: 1.8; color: var(--muted); }

.license-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.license-list { border-top: 1px solid var(--line); }
.license-list li {
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  display: flex;
  gap: 16px;
}
.license-list li::before {
  content: "";
  flex: none;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--signal);
  margin-top: .62em;
}
.company-card {
  border: 1px solid var(--line);
  padding: 36px;
}
.company-card h3 { font-size: 15px; font-weight: 500; letter-spacing: .01em; }
.company-card p { margin: 16px 0 0; font-size: 14px; line-height: 1.85; color: var(--muted); }
.company-card .mono { font-family: var(--font-mono); font-size: 10px; letter-spacing: .14em; color: var(--muted); text-transform: uppercase; }

/* ---------------- services page ---------------- */
.svc {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 48px;
  padding: 72px 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 96px;
}
.svc__num { font-family: var(--font-mono); font-size: 11px; letter-spacing: .14em; color: var(--muted); }
.svc__title { margin: 0 0 14px; font-size: clamp(26px, 2.6vw, 34px); letter-spacing: -.02em; font-weight: 600; }
.svc__lead { margin: 0 0 24px; font-size: 16px; line-height: 1.7; }
.svc__body { margin: 0; max-width: 62ch; font-size: 14px; line-height: 1.9; color: var(--muted); }
.svc__cols { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 40px; }
.svc__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}
.svc__list li { padding: 8px 0; font-size: 14px; color: var(--muted); border-bottom: 1px solid var(--line); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
  transition: border-color .25s var(--ease), color .25s var(--ease);
}
.chip:hover { border-color: var(--signal-ink); color: var(--signal-ink); }

.table { width: 100%; border-collapse: collapse; margin-top: 32px; font-size: 14px; }
.table th {
  text-align: left;
  padding: 14px 16px 14px 0;
  border-bottom: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}
.table td {
  padding: 16px 16px 16px 0;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  line-height: 1.7;
  color: var(--muted);
}
.table td:first-child { color: var(--ink); white-space: nowrap; }

/* ---------------- news pages ---------------- */
.filters { display: flex; gap: 8px; flex-wrap: wrap; }
.filter {
  padding: 9px 16px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: none;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
  transition: background-color .25s var(--ease), color .25s var(--ease);
}
.filter:hover { color: var(--ink); }
.filter[aria-pressed="true"] { background: var(--ink); color: var(--paper); }

.posts { margin: 40px -20px 0; border-top: 1px solid var(--line); }
.post-row {
  display: grid;
  grid-template-columns: 132px 1fr 28px;
  gap: 24px;
  align-items: start;
  padding: 34px 20px;
  border-bottom: 1px solid var(--line);
  transition: background-color .3s var(--ease);
}
.post-row:hover { background: rgba(15, 17, 16, .02); }
.post-row__date { font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em; color: var(--muted); padding-top: 4px; }
.post-row__title { margin: 0 0 8px; font-size: 21px; line-height: 1.45; font-weight: 500; letter-spacing: -.015em; }
.post-row:hover .post-row__title { text-decoration: underline; text-underline-offset: 6px; text-decoration-thickness: 1px; }
.post-row__sum { margin: 0; max-width: 66ch; font-size: 14px; line-height: 1.75; color: var(--muted); }
.post-row__arrow { color: var(--signal-ink); font-size: 16px; padding-top: 4px; }
.empty { padding: 64px 0; color: var(--muted); font-size: 14px; }
.empty a { color: var(--ink); border-bottom: 1px solid var(--signal); }

.filters__meta {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--muted);
}

.pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.pager__step {
  font-size: 13px;
  color: var(--ink);
  transition: color .2s var(--ease);
}
.pager__step:hover { color: var(--signal-ink); }
.pager__step--disabled { color: var(--muted); opacity: .45; cursor: default; }

.pager__pages { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; }

.pager__page {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--line);
  transition: background-color .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}
.pager__page:hover { color: var(--ink); border-color: var(--ink); }
.pager__page--current { background: var(--ink); border-color: var(--ink); color: var(--paper); }

/* 文章页：深色标题带 + 阅读进度 */
.article-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  padding: 168px 0 80px;
}
.article-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(246, 246, 243, .06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(246, 246, 243, .06) 1px, transparent 1px);
  background-size: 84px 84px;
  -webkit-mask-image: radial-gradient(circle at 78% 50%, #000 0%, transparent 70%);
  mask-image: radial-gradient(circle at 78% 50%, #000 0%, transparent 70%);
  pointer-events: none;
}
.article-hero .wrap { position: relative; z-index: 1; }
.article-hero .article__meta { color: rgba(246, 246, 243, .5); }
.article-hero__coord {
  margin: 40px 0 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(246, 246, 243, .35);
}

.read-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 70;
  pointer-events: none;
}
.read-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--signal);
  transform: scaleX(0);
  transform-origin: left;
}

.article { padding: 88px 0 96px; }
.article__head { max-width: 860px; margin: 0 auto 48px; }
.article__meta {
  display: flex;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}
.article__title {
  margin: 24px 0 0;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.22;
  letter-spacing: -.03em;
  font-weight: 600;
}
.article__body { max-width: 720px; margin: 0 auto; font-size: 17px; line-height: 1.9; color: rgba(15, 17, 16, .82); }
.article__body p { margin: 0 0 26px; }
.article__body p:first-of-type { font-size: 18px; color: var(--ink); }
.article__body p:first-of-type::first-letter {
  float: left;
  margin: .04em .14em 0 0;
  font-size: 3.2em;
  line-height: .92;
  font-weight: 600;
  color: var(--ink);
}

.markdown-body h2 {
  margin: 54px 0 18px;
  font-size: 24px;
  line-height: 1.35;
  letter-spacing: -.02em;
  font-weight: 600;
  color: var(--ink);
}
.markdown-body h3 {
  margin: 40px 0 14px;
  font-size: 19px;
  line-height: 1.4;
  font-weight: 600;
  color: var(--ink);
}
.markdown-body h4 {
  margin: 32px 0 12px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}
.markdown-body ul,
.markdown-body ol {
  margin: 0 0 26px;
  padding-left: 1.4em;
}
.markdown-body li { margin: 0 0 10px; }
.markdown-body blockquote {
  margin: 0 0 28px;
  padding: 2px 0 2px 20px;
  border-left: 2px solid var(--signal);
  color: var(--muted);
}
.markdown-body code {
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(15, 17, 16, .06);
  font-family: var(--font-mono);
  font-size: .88em;
}
.markdown-body pre {
  margin: 0 0 28px;
  padding: 18px 20px;
  overflow-x: auto;
  border-radius: 8px;
  background: var(--ink);
  color: var(--paper);
}
.markdown-body pre code {
  padding: 0;
  background: none;
  color: inherit;
  font-size: 13px;
  line-height: 1.7;
}
.markdown-body a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.markdown-body a:hover { color: var(--signal); }
.markdown-body img {
  max-width: 100%;
  height: auto;
  margin: 8px 0 28px;
  border-radius: 6px;
}
.markdown-body table {
  width: 100%;
  margin: 0 0 28px;
  border-collapse: collapse;
  font-size: 15px;
}
.markdown-body th,
.markdown-body td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}
.markdown-body th { font-weight: 600; color: var(--ink); }
.markdown-body hr {
  margin: 40px 0;
  border: 0;
  border-top: 1px solid var(--line);
}
.markdown-body strong { color: var(--ink); }
.article__foot {
  max-width: 720px;
  margin: 56px auto 0;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--muted);
}
.copy-btn {
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: none;
  font-size: 12px;
  color: var(--muted);
  cursor: pointer;
  transition: border-color .25s var(--ease), color .25s var(--ease);
}
.copy-btn:hover { border-color: var(--signal-ink); color: var(--signal-ink); }

.related { border-top: 1px solid var(--line); }
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}
.related-card { padding: 32px 32px 36px 0; border-bottom: 1px solid var(--line); }
.related-card:not(:first-child) { padding-left: 32px; border-left: 1px solid var(--line); }
.related-card time { font-family: var(--font-mono); font-size: 10px; letter-spacing: .12em; color: var(--muted); }
.related-card h3 { margin: 14px 0 0; font-size: 16px; line-height: 1.6; font-weight: 500; }
.related-card:hover h3 { text-decoration: underline; text-underline-offset: 5px; text-decoration-thickness: 1px; }

/* ---------------- contact ---------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr .9fr;
  gap: 72px;
  align-items: start;
}
.info-list { border-top: 1px solid var(--line); }
.info-row {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.info-row dt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 3px;
}
.info-row dd { margin: 0; font-size: 15px; line-height: 1.7; }
.info-row dd a { border-bottom: 1px solid var(--line); transition: border-color .25s var(--ease); }
.info-row dd a:hover { border-color: var(--signal-ink); color: var(--signal-ink); }

.map-card {
  position: relative;
  min-height: 340px;
  border: 1px solid var(--line);
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 40px;
  background-image:
    linear-gradient(to right, rgba(15, 17, 16, .06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 17, 16, .06) 1px, transparent 1px);
  background-size: 40px 40px;
  background-color: var(--paper-2);
}
.map-card__tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}
.map-card__addr { font-size: 20px; line-height: 1.6; letter-spacing: -.01em; max-width: 20ch; text-wrap: balance; }
.map-card__link { font-size: 13px; border-bottom: 1px solid var(--line-strong); align-self: flex-start; padding-bottom: 3px; position: relative; z-index: 1; }
.map-card__link:hover { color: var(--signal-ink); border-color: var(--signal-ink); }

.radar {
  position: absolute;
  right: 28px;
  bottom: 28px;
  width: 148px;
  height: 148px;
  border-radius: 50%;
  pointer-events: none;
  border: 1px solid rgba(15, 17, 16, .1);
  background: repeating-radial-gradient(circle at center, rgba(15, 17, 16, .09) 0 1px, transparent 1px 30px);
  overflow: hidden;
}
.radar::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(0, 208, 138, .16), rgba(0, 208, 138, 0) 26%, transparent 100%);
  animation: radar-spin 4.6s linear infinite;
}
.radar::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 7px;
  height: 7px;
  margin: -3.5px 0 0 -3.5px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 0 rgba(0, 208, 138, .5);
  animation: radar-ping 2.4s var(--ease) infinite;
}
@keyframes radar-spin { to { transform: rotate(360deg); } }
@keyframes radar-ping {
  0% { box-shadow: 0 0 0 0 rgba(0, 208, 138, .45); }
  70%, 100% { box-shadow: 0 0 0 14px rgba(0, 208, 138, 0); }
}

/* ---------------- error ---------------- */
.error {
  position: relative;
  overflow: hidden;
  padding: 200px 0 160px;
  background: var(--ink);
  color: var(--paper);
}
.error::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(246, 246, 243, .06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(246, 246, 243, .06) 1px, transparent 1px);
  background-size: 84px 84px;
  -webkit-mask-image: radial-gradient(circle at 50% 55%, #000 0%, transparent 65%);
  mask-image: radial-gradient(circle at 50% 55%, #000 0%, transparent 65%);
  pointer-events: none;
}
.error .wrap { position: relative; z-index: 1; }
.error .eyebrow { color: rgba(246, 246, 243, .5); }
.error__code {
  position: relative;
  font-family: var(--font-mono);
  font-size: clamp(64px, 12vw, 160px);
  line-height: 1;
  letter-spacing: -.04em;
  color: var(--paper);
}
.error__code::before,
.error__code::after {
  content: attr(data-text);
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  overflow: hidden;
}
.error__code::before {
  color: var(--signal);
  clip-path: inset(0 0 58% 0);
  animation: glitch-a 3.6s steps(2, end) infinite;
}
.error__code::after {
  color: rgba(246, 246, 243, .3);
  clip-path: inset(52% 0 0 0);
  animation: glitch-b 2.9s steps(2, end) infinite;
}
@keyframes glitch-a {
  0%, 86%, 100% { transform: none; opacity: 0; }
  88% { transform: translate(-3px, -2px); opacity: .8; }
  92% { transform: translate(2px, 1px); opacity: .6; }
  96% { transform: translate(-1px, 0); opacity: .8; }
}
@keyframes glitch-b {
  0%, 90%, 100% { transform: none; opacity: 0; }
  93% { transform: translate(3px, 2px); opacity: .7; }
  97% { transform: translate(-2px, -1px); opacity: .5; }
}
.error .btn--solid {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--paper);
}
.error__text { margin: 24px 0 40px; color: rgba(246, 246, 243, .55); font-size: 15px; }

/* ---------------- reveal ---------------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
html.js [data-reveal].is-in { opacity: 1; transform: none; }

/* ---------------- responsive ---------------- */
@media (max-width: 1080px) {
  :root { --gutter: 48px; }
  .deco { display: none; }
  .services { grid-template-columns: 1fr; gap: 40px; }
  .services__aside { position: static; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step:nth-child(3) { border-left: 0; padding-left: 0; }
  .step:nth-child(3)::before { left: 0; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .license-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer__top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  :root { --gutter: 24px; }
  .nav__menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 100vh;
    height: 100dvh;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 4px;
    padding: 108px var(--gutter) 48px;
    overflow-y: auto;
    background: var(--paper);
    color: var(--ink);
    transform: translateY(-100%);
    transition: transform .45s var(--ease);
  }
  .nav__menu.is-open { transform: translateY(0); }
  .nav__menu a { font-size: 30px; letter-spacing: -.02em; padding: 12px 0; }
  .nav__cta { display: none; }
  .nav__toggle { display: flex; position: relative; z-index: 3; }

  .hero { padding-top: 100px; min-height: auto; }
  .hero__inner { grid-template-columns: 1fr; padding-top: 24px; padding-bottom: 40px; }
  .hero__visual { display: none; }
  .hero__title { margin-top: 22px; }
  .hero__meta { gap: 24px; flex-wrap: wrap; }

  .sec { padding: 72px 0; }
  .sec__head { margin-bottom: 36px; }
  .sec__head-main { align-items: flex-start; flex-direction: column; gap: 24px; }

  .caps { grid-template-columns: 1fr 1fr; }
  .cap { min-height: 200px; padding: 28px 24px 32px; }
  .cap:nth-child(3n) { border-right: 1px solid var(--line); }
  .cap:nth-child(2n) { border-right: 0; }
  .cap h3 { font-size: 18px; margin-top: 20px; }
  .cap p { font-size: 13px; }
  .cap__more-text { font-size: 18px; }

  .acc__inner { grid-template-columns: 1fr; gap: 0; padding-left: 0; }
  .acc__col { padding-bottom: 24px; }
  .acc__title { font-size: 18px; }

  .news-grid { grid-template-columns: 1fr; }
  .post--lead { grid-row: auto; border-right: 0; }
  .post { padding: 28px 16px; margin: 0 -16px; }
  .post:not(.post--lead) { padding-left: 16px; }
  .post__arrow { top: 30px; right: 22px; }

  .cta { padding: 88px 0; }
  .cta__actions { flex-direction: column; gap: 24px; }

  .page-hero { padding: 120px 0 56px; }

  .prose-2 { grid-template-columns: 1fr; gap: 0; }
  .values { grid-template-columns: 1fr; }
  .value:not(:first-child) { padding-left: 0; border-left: 0; }

  .svc { grid-template-columns: 1fr; gap: 20px; padding: 48px 0; }
  .svc__cols { grid-template-columns: 1fr; gap: 28px; }

  .posts { margin-left: -12px; margin-right: -12px; }
  .post-row { grid-template-columns: 1fr; gap: 10px; padding: 28px 12px; }
  .post-row__arrow { display: none; }

  .pager { flex-wrap: wrap; justify-content: center; gap: 14px; }
  .pager__pages { order: -1; flex-basis: 100%; }

  .article-hero { padding: 128px 0 56px; }
  .read-progress { height: 2px; }
  .radar { width: 118px; height: 118px; right: 20px; bottom: 20px; }
  .error { padding: 150px 0 110px; }
  .error__code { font-size: clamp(56px, 18vw, 96px); }

  .related-grid { grid-template-columns: 1fr; }
  .related-card:not(:first-child) { padding-left: 0; border-left: 0; }

  .footer { padding-top: 56px; }
  .footer__top { grid-template-columns: 1fr; gap: 32px; }
  .footer__wordmark { padding-top: 40px; }
  .footer__legal { flex-direction: column; gap: 8px; }

  .article__body { font-size: 16px; }
}

@media (max-width: 520px) {
  .hero__title { font-size: clamp(34px, 10vw, 52px); }
  .caps { grid-template-columns: 1fr; }
  .cap { border-right: 0 !important; }
  .steps { grid-template-columns: 1fr; }
  .step, .step:not(:first-child) { border-left: 0; padding-left: 0; }
  .info-row { grid-template-columns: 84px 1fr; }
}

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