:root {
  --red: #e21a1a;
  --red-dark: #b90f13;
  --black: #111111;
  --ink: #171717;
  --muted: #626262;
  --line: #d9d9d9;
  --soft: #f2f2f2;
  --white: #ffffff;
  --shadow: 0 18px 45px rgb(17 17 17 / 14%);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Arial", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  letter-spacing: 0;
}

body::before {
  position: fixed;
  inset: 0 auto 0 0;
  width: min(48vw, 680px);
  pointer-events: none;
  content: "";
  opacity: .42;
  background:
    linear-gradient(128deg, transparent 0 36%, rgb(242 242 242 / 70%) 36% 41%, transparent 41%),
    linear-gradient(128deg, transparent 0 52%, rgb(242 242 242 / 48%) 52% 57%, transparent 57%);
  z-index: -1;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 28px;
  min-height: 78px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgb(255 255 255 / 92%);
  border-bottom: 1px solid rgb(217 217 217 / 72%);
  backdrop-filter: blur(14px);
}

.site-header.is-scrolled {
  box-shadow: 0 10px 30px rgb(17 17 17 / 9%);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 210px;
}

.brand img {
  width: 144px;
  height: auto;
}

.brand span {
  color: var(--black);
  font-size: 15px;
  font-weight: 800;
  white-space: nowrap;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(18px, 3vw, 38px);
  flex: 1;
  color: #333;
  font-size: 14px;
  font-weight: 700;
}

.nav a {
  position: relative;
  padding: 8px 0;
}

.nav a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s ease;
  content: "";
}

.nav a:hover::after,
.nav a:focus-visible::after {
  transform: scaleX(1);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid var(--black);
  border-radius: 0;
  font-size: 14px;
  font-weight: 900;
  line-height: 1;
  white-space: nowrap;
  transition: transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}

.header-cta,
.button.primary {
  color: var(--white);
  background: var(--red);
  border-color: var(--red);
}

.button.secondary {
  color: var(--black);
  background: var(--white);
}

.button.dark {
  color: var(--white);
  background: var(--black);
  border-color: var(--black);
}

.header-cta:hover,
.button:hover {
  transform: translateY(-2px);
}

.hero {
  position: relative;
  min-height: calc(100vh - 78px);
  overflow: hidden;
  padding: clamp(52px, 7vw, 92px) clamp(18px, 4vw, 56px) 44px;
}

.hero::after {
  position: absolute;
  top: 0;
  right: -12vw;
  width: min(44vw, 570px);
  height: 100%;
  background: linear-gradient(160deg, var(--red) 0%, #f21d1d 52%, var(--red-dark) 100%);
  clip-path: polygon(22% 0, 100% 0, 100% 100%, 0 100%);
  content: "";
  z-index: -1;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, .72fr);
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
  max-width: var(--max);
  min-height: calc(100vh - 214px);
  margin: 0 auto;
}

.hero-copy {
  max-width: 760px;
}

.hero-logo {
  width: min(520px, 78vw);
  margin-bottom: clamp(28px, 5vw, 52px);
}

.hero-kicker {
  margin: 0 0 12px;
  color: var(--black);
  font-size: clamp(26px, 4vw, 48px);
  font-weight: 950;
  line-height: 1.05;
}

.hero-kicker::before,
.section-heading::before {
  display: block;
  width: 96px;
  height: 8px;
  margin-bottom: 24px;
  background: var(--red);
  content: "";
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 28px;
  color: var(--black);
  font-size: clamp(48px, 8vw, 92px);
  font-weight: 950;
  line-height: 1.05;
}

h1 span,
.hero-kicker,
.section-number,
.business-index {
  color: var(--red);
}

.hero-lead {
  max-width: 690px;
  margin-bottom: 34px;
  color: #333;
  font-size: clamp(17px, 1.55vw, 21px);
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.performance-panel {
  position: relative;
  min-height: 560px;
  padding: 42px 34px;
  color: var(--white);
  background:
    linear-gradient(155deg, rgb(17 17 17 / 0%) 0 19%, rgb(17 17 17 / 16%) 19% 20%, transparent 20%),
    linear-gradient(150deg, #1a1a1a 0%, #0e0e0e 58%, #e21a1a 58%, #f01818 100%);
  box-shadow: var(--shadow);
  clip-path: polygon(16% 0, 100% 0, 100% 100%, 0 100%, 0 12%);
  overflow: hidden;
}

.performance-panel::after {
  position: absolute;
  right: -70px;
  bottom: -70px;
  width: 220px;
  height: 220px;
  border: 26px solid rgb(255 255 255 / 18%);
  transform: rotate(45deg);
  content: "";
}

.speed-lines {
  width: 124px;
  height: 48px;
  margin-left: auto;
  background: repeating-linear-gradient(110deg, transparent 0 11px, var(--white) 11px 15px, transparent 15px 23px);
}

.panel-title {
  margin-top: 28px;
  text-align: right;
  font-size: 16px;
  font-weight: 900;
  line-height: 1.8;
}

.panel-track {
  position: absolute;
  bottom: 188px;
  left: 34px;
  display: grid;
  gap: 14px;
  font-size: clamp(26px, 3.1vw, 42px);
  font-weight: 950;
  line-height: 1;
  text-transform: uppercase;
}

.panel-track span {
  display: block;
  padding-left: 18px;
  border-left: 6px solid var(--red);
}

.panel-metrics {
  position: absolute;
  right: 34px;
  bottom: 34px;
  left: 34px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid rgb(255 255 255 / 28%);
  background: rgb(255 255 255 / 9%);
  backdrop-filter: blur(8px);
}

.panel-metrics div {
  min-width: 0;
  padding: 18px 14px;
  border-right: 1px solid rgb(255 255 255 / 24%);
}

.panel-metrics div:last-child {
  border-right: 0;
}

.panel-metrics strong,
.panel-metrics span {
  display: block;
}

.panel-metrics strong {
  font-size: 25px;
  font-weight: 950;
  line-height: 1.15;
}

.panel-metrics span {
  margin-top: 4px;
  color: rgb(255 255 255 / 78%);
  font-size: 13px;
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(72px, 9vw, 122px) clamp(18px, 4vw, 56px);
}

.section-heading {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr);
  align-items: start;
  gap: clamp(18px, 4vw, 52px);
  margin-bottom: clamp(34px, 6vw, 70px);
}

.section-heading::before {
  grid-column: 1 / -1;
  margin-bottom: 0;
}

.section-heading.compact {
  margin-bottom: 34px;
}

.section-number {
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 950;
  line-height: .9;
}

h2 {
  max-width: 880px;
  color: var(--black);
  font-size: clamp(34px, 5vw, 62px);
  font-weight: 950;
  line-height: 1.13;
}

.intro-layout {
  display: grid;
  grid-template-columns: minmax(280px, .86fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 72px);
}

.statement {
  position: relative;
  margin: 0;
  padding: 34px 36px 34px 0;
  border-top: 2px solid var(--black);
  border-bottom: 2px solid var(--black);
  color: var(--black);
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 900;
  line-height: 1.55;
}

.statement::after {
  position: absolute;
  top: -2px;
  right: 0;
  bottom: -2px;
  width: 7px;
  background: var(--red);
  content: "";
}

.intro-copy p,
.business-list p,
.matrix-intro,
.belief-copy p,
.position-grid p,
.contact-panel p {
  color: var(--muted);
  font-size: 17px;
}

.intro-copy strong {
  color: var(--black);
}

.position {
  padding-top: 24px;
}

.position-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  background: var(--white);
}

.position-grid article {
  min-width: 0;
  padding: 28px 24px;
  border-right: 1px solid var(--line);
}

.position-grid article:last-child {
  border-right: 0;
}

.position-grid span {
  color: var(--red);
  font-size: 24px;
  font-weight: 950;
}

h3 {
  margin-bottom: 10px;
  color: var(--black);
  font-size: 24px;
  font-weight: 950;
  line-height: 1.35;
}

.business {
  padding-top: 48px;
}

.business-list {
  display: grid;
  gap: 0;
  border-top: 2px solid var(--black);
}

.business-list article {
  display: grid;
  grid-template-columns: 118px minmax(0, 1fr);
  gap: clamp(18px, 4vw, 50px);
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
}

.business-index {
  font-size: clamp(34px, 5vw, 58px);
  font-weight: 950;
  line-height: 1;
}

.belief {
  position: relative;
  overflow: hidden;
  color: var(--white);
  background: var(--black);
}

.belief::before {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(126deg, transparent 0 59%, var(--red) 59% 100%),
    repeating-linear-gradient(110deg, transparent 0 24px, rgb(255 255 255 / 5%) 24px 36px, transparent 36px 60px);
  content: "";
}

.belief-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(280px, .9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 6vw, 74px);
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(78px, 10vw, 132px) clamp(18px, 4vw, 56px);
}

.belief h2,
.belief h3 {
  color: var(--white);
}

.belief-copy p {
  color: rgb(255 255 255 / 82%);
  font-size: clamp(18px, 2vw, 24px);
}

.values {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 18px;
  border: 1px solid rgb(255 255 255 / 22%);
  background: rgb(255 255 255 / 8%);
}

.values article {
  min-width: 0;
  padding: 28px 24px;
  border-right: 1px solid rgb(255 255 255 / 18%);
}

.values article:last-child {
  border-right: 0;
}

.values h3::after {
  display: block;
  width: 34px;
  height: 4px;
  margin-top: 12px;
  background: var(--red);
  content: "";
}

.values p {
  color: rgb(255 255 255 / 76%);
}

.matrix-intro {
  max-width: 820px;
  margin: -24px 0 42px 152px;
}

.matrix-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.matrix-grid article {
  min-height: 220px;
  padding: 26px 24px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--white), #f7f7f7);
}

.matrix-grid .featured {
  grid-column: span 2;
  color: var(--white);
  background:
    linear-gradient(130deg, rgb(17 17 17 / 70%), rgb(17 17 17 / 20)),
    linear-gradient(145deg, var(--red) 0%, var(--red) 42%, var(--black) 42%, var(--black) 100%);
  border-color: var(--black);
}

.matrix-grid .featured h3,
.matrix-grid .featured p {
  color: var(--white);
}

.contact {
  padding-top: 40px;
}

.contact-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: clamp(32px, 5vw, 54px);
  color: var(--white);
  background:
    linear-gradient(132deg, rgb(255 255 255 / 10%) 0 15%, transparent 15%),
    linear-gradient(115deg, var(--red) 0 58%, var(--black) 58% 100%);
}

.contact-panel h2,
.contact-panel p {
  color: var(--white);
}

.contact-panel h2 {
  margin-bottom: 14px;
  font-size: clamp(32px, 5vw, 58px);
}

.contact-panel p {
  max-width: 680px;
  margin-bottom: 0;
}

.contact-note {
  min-width: min(360px, 100%);
  padding: 20px 24px;
  border: 1px solid rgb(255 255 255 / 34%);
  background: rgb(17 17 17 / 22%);
}

.contact-note strong,
.contact-note span {
  display: block;
}

.contact-note strong {
  color: var(--white);
  font-size: 18px;
  line-height: 1.5;
}

.contact-note span {
  margin-top: 6px;
  color: rgb(255 255 255 / 78%);
  font-size: 14px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 30px clamp(18px, 4vw, 56px);
  color: #555;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.site-footer > div:first-child strong,
.site-footer > div:first-child span {
  display: block;
}

.site-footer > div:first-child strong {
  color: var(--black);
  font-size: 16px;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.footer-links a {
  color: #555;
}

.footer-links a:hover {
  color: var(--red);
}

@media (max-width: 960px) {
  .site-header {
    flex-wrap: wrap;
    gap: 12px;
  }

  .brand {
    flex: 1;
  }

  .nav {
    order: 3;
    flex-basis: 100%;
    justify-content: flex-start;
    gap: 22px;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero {
    min-height: auto;
  }

  .hero::after {
    width: 54vw;
    opacity: .22;
  }

  .hero-grid,
  .intro-layout,
  .belief-inner {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    min-height: auto;
  }

  .performance-panel {
    min-height: 430px;
  }

  .position-grid,
  .values,
  .matrix-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .position-grid article:nth-child(2n),
  .values article:nth-child(2n) {
    border-right: 0;
  }

  .position-grid article:nth-child(-n + 2),
  .values article:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .values article:nth-child(-n + 2) {
    border-bottom-color: rgb(255 255 255 / 18%);
  }

  .matrix-intro {
    margin-left: 0;
  }

  .contact-panel {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .site-header {
    position: static;
    min-height: 0;
  }

  .brand img {
    width: 118px;
  }

  .brand span,
  .header-cta {
    font-size: 13px;
  }

  .header-cta {
    min-height: 40px;
    padding: 0 14px;
  }

  .nav {
    gap: 16px;
    font-size: 13px;
  }

  .hero {
    padding-top: 42px;
  }

  .hero-logo {
    width: min(420px, 94vw);
    margin-bottom: 28px;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .performance-panel {
    min-height: 390px;
    padding: 30px 22px;
  }

  .panel-track {
    bottom: 158px;
    left: 22px;
    font-size: 24px;
  }

  .panel-metrics {
    right: 22px;
    bottom: 22px;
    left: 22px;
  }

  .panel-metrics div {
    padding: 14px 10px;
  }

  .panel-metrics strong {
    font-size: 20px;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .statement {
    padding-right: 24px;
  }

  .position-grid,
  .values,
  .matrix-grid {
    grid-template-columns: 1fr;
  }

  .position-grid article,
  .values article {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .values article {
    border-bottom-color: rgb(255 255 255 / 18%);
  }

  .position-grid article:last-child,
  .values article:last-child {
    border-bottom: 0;
  }

  .business-list article {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .matrix-grid .featured {
    grid-column: auto;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

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