:root {
  --ink: #111315;
  --muted: #706b63;
  --paper: #f4efe7;
  --card: rgba(255, 250, 242, 0.9);
  --line: rgba(59, 51, 39, 0.14);
  --orange: #ff741f;
  --orange-2: #ff9f4c;
  --shadow: 0 24px 60px rgba(37, 30, 20, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at 12% 12%, rgba(255, 116, 31, 0.1), transparent 22rem),
    linear-gradient(180deg, #fbf7f0 0%, #f4efe7 48%, #f0eadf 100%);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

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

button,
input,
select {
  font: inherit;
}

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

.section-shell,
.hero-shell,
.footer-shell {
  width: min(1200px, calc(100% - 64px));
  margin: 0 auto;
}

.hero {
  --hero-sweep: 0%;
  --hero-feather: 12%;
  position: relative;
  overflow: hidden;
  color: #fff;
  background: #060708;
}

.hero-visual {
  position: relative;
}

.hero-poster {
  width: 100%;
  height: auto;
}

.hero-poster--base {
  position: relative;
  z-index: 0;
}

.hero-poster--incoming {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  opacity: 0;
  -webkit-mask-image: linear-gradient(
    90deg,
    rgba(0, 0, 0, 1) 0,
    rgba(0, 0, 0, 1) calc(var(--hero-sweep) - var(--hero-feather)),
    rgba(0, 0, 0, 0.72) var(--hero-sweep),
    transparent calc(var(--hero-sweep) + var(--hero-feather)),
    transparent 100%
  );
  mask-image: linear-gradient(
    90deg,
    rgba(0, 0, 0, 1) 0,
    rgba(0, 0, 0, 1) calc(var(--hero-sweep) - var(--hero-feather)),
    rgba(0, 0, 0, 0.72) var(--hero-sweep),
    transparent calc(var(--hero-sweep) + var(--hero-feather)),
    transparent 100%
  );
}

.hero.is-transitioning .hero-poster--incoming {
  opacity: 1;
}

.hero-shell {
  position: absolute;
  inset: 0;
  width: 100%;
  z-index: 3;
  pointer-events: none;
}

.hero-hotspot {
  position: absolute;
  top: 74.2%;
  display: block;
  border-radius: 12px;
  outline: none;
  pointer-events: auto;
}

.quote-band a,
.submit-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 0 28px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 800;
  border: 0;
  color: #fff;
  background: linear-gradient(135deg, var(--orange), #ff8f30);
  box-shadow: 0 16px 36px rgba(255, 116, 31, 0.28);
}

.hero-hotspot--contact {
  left: 8.6%;
  width: 19.4%;
  height: 8.1%;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.hero-hotspot--cases {
  left: 28.1%;
  width: 16.7%;
  height: 8.1%;
}

.quote-band a::after,
.submit-button::after {
  content: "›";
  display: grid;
  width: 24px;
  height: 24px;
  margin-left: 10px;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.94);
  color: var(--orange);
}

main {
  padding: 44px 0 0;
}

.section {
  padding: 44px 0 0;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 28px;
  text-align: center;
}

.section-title--left {
  justify-content: flex-start;
  margin-bottom: 18px;
  text-align: left;
}

.section-title span {
  width: 56px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 116, 31, 0.9), transparent);
}

.section-title h2 {
  margin: 0;
  color: #2e2d2a;
  font-size: 34px;
  font-weight: 800;
  line-height: 1.2;
}

.section-title em {
  color: var(--muted);
  font-style: normal;
  font-weight: 500;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.service-card,
.advantage-grid article,
.brief-card,
.about-panel,
.case-card,
.client-wall {
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: var(--shadow);
}

.service-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  padding: 12px 12px 18px;
  border-radius: 20px;
}

.visual {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 14px;
  background: #101113;
}

.visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-card h3 {
  margin: 18px 0 10px;
  font-size: 22px;
  font-weight: 800;
}

.service-card p {
  margin: 0;
  color: #4e4b45;
  font-size: 15px;
  line-height: 1.8;
}

.service-custom-card {
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(135deg, rgba(255, 116, 31, 0.12), rgba(255, 255, 255, 0.72)),
    rgba(255, 250, 242, 0.9);
}

.service-custom-card span {
  display: grid;
  width: 100%;
  height: 100%;
  min-height: 100%;
  place-items: center;
  border: 1px dashed rgba(255, 116, 31, 0.58);
  border-radius: 16px;
  color: var(--orange);
  font-size: 28px;
  font-weight: 900;
  line-height: 1.4;
}

.quote-band {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  background: #0d0f10;
  box-shadow: var(--shadow);
}

.quote-band__visual {
  width: 100%;
  height: auto;
}

.quote-band a {
  position: absolute;
  left: 7.8%;
  bottom: 10.8%;
}

.about-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(420px, 0.95fr);
  gap: 34px;
  align-items: center;
  padding: 32px;
  border-radius: 24px;
}

.about-title {
  margin: 0 0 18px;
  color: #2e2d2a;
  font-size: 34px;
  font-weight: 800;
  line-height: 1.2;
}

.about-copy p {
  color: #4d4941;
  font-size: 17px;
  line-height: 1.95;
}

.about-photo {
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: 20px;
  object-fit: cover;
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.advantage-grid article {
  min-height: 224px;
  padding: 24px 22px 20px;
  border-radius: 20px;
  text-align: center;
}

.advantage-grid h3 {
  margin-bottom: 0;
  font-size: 23px;
  font-weight: 800;
  line-height: 1.35;
}

.advantage-grid h3::after {
  content: "";
  display: block;
  width: 28px;
  height: 2px;
  margin: 14px auto 18px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255, 116, 31, 0.92), rgba(255, 155, 61, 0.86));
}

.advantage-grid p {
  margin: 0;
  color: #54514b;
  font-size: 15px;
  line-height: 1.85;
  text-align: left;
}

.case-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.case-card {
  display: block;
  overflow: hidden;
  padding: 0;
  border-radius: 18px;
  color: inherit;
  text-align: left;
}

.case-cover {
  position: relative;
  display: block;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #131414;
}

.case-cover::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: rgba(8, 8, 8, 0.36);
  backdrop-filter: blur(8px);
  transform: translate(-50%, -50%);
}

.case-cover::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 1;
  width: 0;
  height: 0;
  border-top: 11px solid transparent;
  border-bottom: 11px solid transparent;
  border-left: 17px solid rgba(255, 255, 255, 0.9);
  transform: translate(-32%, -50%);
}

.case-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-meta {
  display: block;
  padding: 16px 18px 18px 25px;
}

.case-meta h3 {
  margin: 0;
  font-size: 16px;
  line-height: 1.5;
}

.brief-card {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(0, 1.1fr);
  gap: 28px;
  padding: 32px;
  border-radius: 24px;
}

.brief-points {
  padding: 10px 6px 10px 0;
}

.brief-eyebrow {
  margin-bottom: 12px;
  color: var(--orange);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.brief-points h3 {
  margin-bottom: 14px;
  font-size: 34px;
  line-height: 1.3;
}

.brief-points p,
.brief-points li {
  color: #4f4a42;
  font-size: 16px;
  line-height: 1.8;
}

.brief-points ul {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.brief-points li::before {
  content: "✓";
  display: inline-grid;
  width: 18px;
  height: 18px;
  margin-right: 8px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--orange);
  font-size: 12px;
}

.lead-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
}

.lead-form label {
  display: grid;
  gap: 10px;
}

.lead-form label span {
  color: #3d382f;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.3;
}

.lead-form input,
.lead-form select {
  width: 100%;
  min-height: 52px;
  padding: 0 16px;
  border: 1px solid rgba(74, 63, 51, 0.18);
  border-radius: 12px;
  color: #2c2925;
  background: rgba(255, 255, 255, 0.78);
  outline: 0;
}

.lead-form input:focus,
.lead-form select:focus {
  border-color: rgba(255, 116, 31, 0.72);
  box-shadow: 0 0 0 4px rgba(255, 116, 31, 0.1);
}

.code-field {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
}

.code-field span,
.code-field input {
  grid-column: 1;
}

.code-field button {
  min-height: 52px;
  padding: 0 16px;
  border: 1px solid rgba(255, 116, 31, 0.68);
  border-radius: 12px;
  color: var(--orange);
  background: #fff8ef;
  font-size: 14px;
  font-weight: 800;
}

.code-field button:disabled,
.submit-button:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.submit-button,
.form-note {
  grid-column: 1 / -1;
}

.submit-button {
  margin-top: 4px;
  width: 100%;
}

.submit-button.is-complete {
  min-height: 72px;
  padding: 10px 18px;
  font-size: 20px;
  line-height: 1.35;
  white-space: normal;
}

.form-note {
  margin: 0;
  color: #66725b;
  font-size: 13px;
  text-align: center;
}

.form-note:empty {
  display: none;
}

.form-note.is-error {
  color: #b42318;
}

.form-note.is-success {
  color: #336f3b;
}

.section-clients {
  padding-bottom: 54px;
}

.clients-copy {
  max-width: 760px;
  margin: 0 auto 22px;
  color: #5d574d;
  font-size: 16px;
  line-height: 1.8;
  text-align: center;
}

.client-wall {
  width: 100%;
  border-radius: 24px;
}

.video-modal[hidden] {
  display: none;
}

.video-modal {
  position: fixed;
  inset: 0;
  z-index: 50;
}

.video-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.74);
  backdrop-filter: blur(12px);
}

.video-modal__dialog {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(calc(100% - 48px), 1040px);
  padding: 20px;
  border-radius: 28px;
  background: #0f1012;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.42);
  transform: translate(-50%, -50%);
}

.video-modal__close {
  position: absolute;
  top: 20px;
  right: 20px;
  min-width: 62px;
  min-height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.06);
  font-size: 14px;
  font-weight: 800;
}

.video-modal__title {
  margin: 0 76px 14px 0;
  color: #fff;
  font-size: 22px;
  line-height: 1.35;
}

.video-modal__player {
  width: 100%;
  max-height: min(72vh, 720px);
  border-radius: 18px;
  background: #000;
}

.contact-modal[hidden] {
  display: none;
}

.contact-modal {
  position: fixed;
  inset: 0;
  z-index: 60;
}

.contact-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.54);
  backdrop-filter: blur(10px);
}

.contact-modal__dialog {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(calc(100% - 40px), 420px);
  padding: 26px 24px 24px;
  border-radius: 24px;
  background: #0f1012;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.42);
  transform: translate(-50%, -50%);
}

.contact-modal__close {
  position: absolute;
  top: 18px;
  right: 18px;
  min-width: 62px;
  min-height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.06);
  font-size: 14px;
  font-weight: 800;
}

.contact-modal__title {
  margin: 0 76px 18px 0;
  color: #fff;
  font-size: 28px;
  line-height: 1.25;
}

.contact-modal__list {
  display: grid;
  gap: 14px;
}

.contact-modal__item {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
}

.contact-modal__item span {
  color: rgba(255, 255, 255, 0.62);
  font-size: 14px;
  font-weight: 700;
}

.contact-modal__item strong {
  color: #fff;
  font-size: 24px;
  line-height: 1.25;
}

.site-footer {
  color: rgba(255, 255, 255, 0.84);
  background: #060708;
}

.footer-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  grid-template-areas:
    "topline topline"
    "copy brand";
  column-gap: 74px;
  row-gap: 28px;
  align-items: start;
  padding: 42px 0 36px;
}

.footer-topline {
  grid-area: topline;
}

.footer-quote {
  margin: 0;
  color: rgba(255, 255, 255, 0.92);
  font-size: 24px;
  line-height: 1.6;
}

.footer-divider {
  height: 1px;
  margin: 22px 0 0;
  background: rgba(255, 255, 255, 0.12);
}

.footer-copy {
  grid-area: copy;
}

.footer-contact-list {
  display: grid;
  gap: 16px;
}

.footer-contact-item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
}

.footer-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1.5px solid rgba(255, 177, 90, 0.9);
  border-radius: 50%;
  color: var(--orange-2);
  font-size: 16px;
  font-weight: 900;
}

.footer-icon svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.footer-contact-item p,
.footer-contact-item a {
  margin: 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 17px;
  line-height: 1.35;
}

.footer-brand {
  grid-area: brand;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  padding-top: 8px;
  transform: translateY(-50px);
}

.footer-logo {
  width: 206px;
  height: auto;
  align-self: center;
  transform: translateY(20px);
}

.footer-copyright {
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
}

.footer-record-bar {
  margin: 0;
  min-height: 42px;
  padding: 10px 24px 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.35);
  background: #fff;
  text-align: center;
}

.footer-record-bar a {
  color: #5a5a5a;
  font-size: 11px;
  line-height: 1.35;
  text-decoration: none;
}

.footer-qr {
  display: grid;
  gap: 8px;
  justify-items: center;
}

.footer-qr__image {
  width: 112px;
  height: 112px;
  border-radius: 4px;
  background: #fff;
}

.footer-qr__caption {
  margin: 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 11px;
  line-height: 1.5;
  text-align: center;
}

@media (max-width: 1180px) {
  .service-grid,
  .case-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .advantage-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .brief-card,
  .about-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .section-shell,
  .hero-shell,
  .footer-shell {
    width: min(100% - 32px, 100%);
  }

  .service-grid,
  .case-strip,
  .lead-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-hotspot {
    top: 72.8%;
  }

  .hero-hotspot--contact {
    left: 7%;
    width: 22%;
  }

  .hero-hotspot--cases {
    left: 29.7%;
    width: 18.8%;
  }

  .footer-shell {
    grid-template-columns: 1fr;
  }

  .footer-shell {
    grid-template-columns: 1fr;
    grid-template-areas:
      "topline"
      "copy"
      "brand";
    row-gap: 24px;
  }

  .footer-brand {
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .service-grid,
  .advantage-grid,
  .case-strip,
  .lead-form {
    grid-template-columns: 1fr;
  }

  .hero-hotspot {
    top: auto;
    bottom: 6.5%;
    height: 8.8%;
  }

  .hero-hotspot--contact {
    left: 5%;
    width: 40%;
  }

  .hero-hotspot--cases {
    left: 46.5%;
    width: 35%;
  }

  .video-modal__dialog {
    width: min(calc(100% - 20px), 1040px);
    padding: 14px;
    border-radius: 20px;
  }
}