.shihe-page {
  --shihe-canvas: #fffaf2;
  --shihe-purple: #6f43f3;
  --shihe-purple-dark: #17103f;
  --shihe-pink: #ff4fa3;
  --shihe-yellow: #ffd43b;
  --shihe-mint: #55d6ae;
  --shihe-blue: #4f7cff;
  background:
    linear-gradient(135deg, rgba(111, 67, 243, 0.035) 0 25%, transparent 25% 50%, rgba(255, 79, 163, 0.035) 50% 75%, transparent 75%),
    var(--shihe-canvas);
  background-size: 28px 28px;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 14px;
  color: #fff;
  background: var(--shihe-purple-dark);
  border-radius: 8px;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.shihe-page a:focus-visible {
  outline: 3px solid var(--shihe-yellow);
  outline-offset: 3px;
}

.shihe-header {
  padding-top: 13px;
  padding-bottom: 13px;
}

.shihe-header .nav {
  margin-left: auto;
  gap: 20px;
}

.header-back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 15px;
  color: var(--brand-dark);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 800;
}

.header-back:hover {
  color: var(--brand);
  border-color: rgba(91, 53, 230, 0.28);
}

.shihe-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(400px, 0.98fr);
  gap: clamp(34px, 5vw, 76px);
  align-items: center;
  min-height: min(770px, calc(100vh - 72px));
  padding: 72px clamp(20px, 6vw, 96px) 64px;
  overflow: hidden;
  isolation: isolate;
  background:
    linear-gradient(135deg, rgba(255, 212, 59, 0.14) 0 12%, transparent 12% 100%),
    linear-gradient(rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(135deg, #10091f 0%, #191351 50%, #501b67 100%);
  background-size: auto, 34px 34px, 34px 34px, auto;
}

.shihe-hero::after {
  position: absolute;
  right: clamp(18px, 5vw, 88px);
  bottom: 42px;
  z-index: -1;
  width: min(48vw, 640px);
  height: 176px;
  border: 2px solid rgba(255, 212, 59, 0.3);
  border-radius: 8px;
  transform: rotate(-4deg);
  content: "";
}

.shihe-hero-copy {
  min-width: 0;
}

.shihe-hero .eyebrow {
  display: inline-flex;
  padding: 6px 10px;
  color: #211a55;
  background: var(--shihe-yellow);
  border-radius: 8px;
  box-shadow: 7px 7px 0 rgba(255, 79, 163, 0.22);
}

.product-name {
  margin: 22px 0 6px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.shihe-hero h1 {
  max-width: 780px;
  margin-bottom: 24px;
  color: #fff;
  font-size: clamp(46px, 5.45vw, 70px);
}

.shihe-hero h1 span {
  display: block;
  white-space: nowrap;
}

.shihe-hero .lead {
  max-width: 680px;
  color: rgba(238, 240, 255, 0.82);
}

.release-note {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-top: 24px;
  color: rgba(238, 240, 255, 0.7);
  font-size: 14px;
}

.release-dot {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  background: var(--shihe-yellow);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(255, 212, 59, 0.12);
}

.product-stage {
  position: relative;
  min-width: 0;
  padding: clamp(20px, 3vw, 34px);
  background: rgba(9, 13, 33, 0.62);
  border: 2px solid rgba(255, 79, 163, 0.34);
  border-radius: 8px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  transform: rotate(1.4deg);
}

.logo-card {
  display: grid;
  grid-template-columns: minmax(170px, 0.85fr) minmax(180px, 1fr);
  align-items: center;
  gap: 12px;
  min-height: 320px;
  padding: 20px;
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
}

.logo-card > img {
  display: block;
  width: min(100%, 310px);
  margin: auto;
  filter: drop-shadow(0 20px 24px rgba(65, 28, 137, 0.18));
}

.logo-card strong,
.logo-card span {
  display: block;
}

.logo-card strong {
  margin-bottom: 8px;
  color: var(--shihe-purple-dark);
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.2;
}

.logo-card span {
  color: var(--muted);
  font-size: 15px;
}

.hero-mini-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.hero-mini-grid div {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  padding: 10px 12px;
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
}

.hero-mini-grid img {
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  object-fit: contain;
}

.shihe-intro {
  background:
    linear-gradient(135deg, rgba(255, 212, 59, 0.15) 0 18%, transparent 18%),
    linear-gradient(180deg, #fff 0%, #fffaf2 100%);
}

.shihe-intro .section-title,
.feature-section .section-title {
  max-width: 820px;
}

.section-title > p:last-child {
  color: var(--muted);
  font-size: 17px;
}

.deadline-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.deadline-strip article {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  min-height: 210px;
  padding: 24px;
  background: #fff;
  border: 2px solid rgba(91, 53, 230, 0.09);
  border-radius: 8px;
  box-shadow: 9px 9px 0 rgba(91, 53, 230, 0.055), 0 14px 34px rgba(38, 44, 112, 0.06);
}

.deadline-strip article:nth-child(1) {
  background: #effcf6;
}

.deadline-strip article:nth-child(2) {
  background: #eef7ff;
}

.deadline-strip article:nth-child(3) {
  background: #fff1f7;
}

.deadline-strip img {
  width: 112px;
  height: 112px;
  object-fit: contain;
}

.card-kicker {
  margin-bottom: 5px;
  color: var(--brand);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.deadline-strip h3 {
  font-size: 19px;
}

.deadline-strip article > div > p:last-child {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.feature-section {
  background: #fff;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  position: relative;
  min-height: 340px;
  padding: 26px;
  overflow: hidden;
  background: var(--soft-purple);
  border: 2px solid rgba(91, 53, 230, 0.09);
  border-radius: 8px;
  box-shadow: 8px 8px 0 rgba(91, 53, 230, 0.05), 0 12px 34px rgba(38, 44, 112, 0.06);
}

.feature-card:nth-child(2) {
  background: #eef7ff;
  transform: translateY(18px);
}

.feature-card:nth-child(3) {
  background: #fff1f7;
  transform: translateY(-10px);
}

.feature-card:nth-child(4) {
  background: #effcf6;
}

.feature-card img {
  display: block;
  width: 112px;
  height: 112px;
  margin-bottom: 20px;
  object-fit: contain;
}

.feature-card > span {
  position: absolute;
  top: 22px;
  right: 22px;
  color: rgba(33, 26, 85, 0.28);
  font-size: 30px;
  font-weight: 950;
}

.feature-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 15px;
}

.how-section {
  background:
    linear-gradient(135deg, rgba(111, 67, 243, 0.07) 0 24%, transparent 24%),
    linear-gradient(135deg, #fff7fd, #fff);
}

.step-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.step-list li {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  min-height: 150px;
  padding: 24px;
  background: #fff;
  border: 2px solid rgba(91, 53, 230, 0.08);
  border-radius: 8px;
  box-shadow: 8px 8px 0 rgba(235, 91, 189, 0.07);
}

.step-list li > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  color: #fff;
  background: var(--shihe-purple);
  border-radius: 8px;
  font-size: 22px;
  font-weight: 900;
}

.step-list li:nth-child(2) > span {
  background: var(--shihe-pink);
}

.step-list li:nth-child(3) > span {
  color: var(--shihe-purple-dark);
  background: var(--shihe-yellow);
}

.step-list strong {
  display: block;
  margin-bottom: 7px;
  color: var(--brand-dark);
  font-size: 19px;
}

.step-list p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 15px;
}

.privacy-section {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(500px, 1.22fr);
  gap: clamp(34px, 6vw, 86px);
  align-items: center;
  color: #fff;
  background:
    radial-gradient(circle at 82% 24%, rgba(255, 79, 163, 0.3), transparent 30%),
    radial-gradient(circle at 18% 78%, rgba(111, 67, 243, 0.38), transparent 34%),
    linear-gradient(135deg, #10091f, #211a55 58%, #42195d);
}

.privacy-copy h2,
.privacy-copy .eyebrow {
  color: #fff;
}

.privacy-copy > p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.75);
  font-size: 17px;
}

.privacy-copy .button {
  margin-top: 8px;
}

.privacy-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.privacy-grid article {
  min-height: 190px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 8px;
  backdrop-filter: blur(10px);
}

.privacy-grid img {
  display: block;
  width: 70px;
  height: 70px;
  margin-bottom: 10px;
  object-fit: contain;
}

.privacy-grid strong,
.privacy-grid span {
  display: block;
}

.privacy-grid strong {
  margin-bottom: 6px;
  color: #fff;
  font-size: 17px;
}

.privacy-grid span {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
}

.release-section {
  background: #fff;
}

.release-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(330px, 0.7fr);
  gap: 30px;
  align-items: start;
  padding: clamp(28px, 5vw, 54px);
  background:
    linear-gradient(135deg, rgba(255, 212, 59, 0.2), transparent 42%),
    var(--soft-blue);
  border: 2px solid rgba(91, 53, 230, 0.09);
  border-radius: 8px;
  box-shadow: 12px 12px 0 rgba(91, 53, 230, 0.055);
}

.release-panel > div:first-child > p:last-child {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 17px;
}

.release-facts {
  padding: 10px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.release-facts div {
  padding: 15px;
  border-bottom: 1px solid var(--line);
}

.release-facts div:last-child {
  border-bottom: 0;
}

.release-facts span,
.release-facts strong {
  display: block;
}

.release-facts span {
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 12px;
}

.release-facts strong {
  color: var(--brand-dark);
}

.shihe-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  color: #fff;
  background:
    linear-gradient(rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(135deg, #10091f, #211a55 58%, #42195d);
  background-size: 40px 40px, 40px 40px, auto;
}

.shihe-contact h2,
.shihe-contact .eyebrow {
  color: #fff;
}

.shihe-contact p:last-child {
  max-width: 760px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.75);
}

.shihe-contact .contact-actions {
  justify-content: flex-end;
}

.shihe-footer {
  background: #fff;
}

.shihe-mobile-cta {
  display: none;
}

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

  .deadline-strip article {
    grid-template-columns: 88px minmax(0, 1fr);
    padding: 20px;
  }

  .deadline-strip img {
    width: 88px;
    height: 88px;
  }

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

  .feature-card:nth-child(2),
  .feature-card:nth-child(3) {
    transform: none;
  }
}

@media (max-width: 900px) {
  .shihe-hero,
  .privacy-section,
  .release-panel,
  .shihe-contact {
    grid-template-columns: 1fr;
  }

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

  .product-stage {
    max-width: 680px;
    margin: 0 auto;
  }

  .deadline-strip,
  .step-list {
    grid-template-columns: 1fr;
  }

  .deadline-strip article {
    grid-template-columns: 112px minmax(0, 1fr);
    min-height: auto;
  }

  .deadline-strip img {
    width: 112px;
    height: 112px;
  }

  .shihe-contact .contact-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 720px) {
  .shihe-page {
    padding-bottom: 70px;
  }

  .shihe-header {
    padding: 12px 18px;
  }

  .header-back {
    min-height: 34px;
    padding: 0 11px;
    font-size: 12px;
  }

  .shihe-hero {
    display: flex;
    flex-direction: column;
    padding: 34px 18px 28px;
  }

  .shihe-hero-copy {
    display: contents;
  }

  .shihe-hero .eyebrow {
    order: 2;
    align-self: flex-start;
    margin-top: 4px;
  }

  .product-name {
    order: 3;
    margin: 16px 0 3px;
    font-size: 13px;
  }

  .shihe-hero h1 {
    order: 4;
    margin-bottom: 16px;
    font-size: 34px;
    line-height: 1.16;
  }

  .shihe-hero h1 span {
    white-space: normal;
  }

  .shihe-hero .lead {
    order: 5;
    margin-bottom: 18px;
    font-size: 16px;
  }

  .shihe-hero .hero-actions {
    order: 6;
  }

  .shihe-hero .hero-actions .secondary {
    display: none;
  }

  .release-note {
    order: 7;
    margin-top: 18px;
    font-size: 12px;
  }

  .product-stage {
    order: 1;
    width: 100%;
    padding: 14px;
    transform: none;
  }

  .logo-card {
    grid-template-columns: 132px minmax(0, 1fr);
    min-height: 180px;
    padding: 12px;
  }

  .logo-card strong {
    font-size: 22px;
  }

  .logo-card span {
    font-size: 13px;
  }

  .hero-mini-grid {
    display: none;
  }

  .section-title > p:last-child,
  .privacy-copy > p:not(.eyebrow),
  .release-panel > div:first-child > p:last-child {
    font-size: 15px;
  }

  .deadline-strip article {
    grid-template-columns: 86px minmax(0, 1fr);
    gap: 10px;
    padding: 16px;
  }

  .deadline-strip img {
    width: 86px;
    height: 86px;
  }

  .deadline-strip h3 {
    margin-bottom: 6px;
    font-size: 17px;
  }

  .deadline-strip article > div > p:last-child {
    font-size: 13px;
  }

  .feature-grid,
  .privacy-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: auto;
    padding: 20px;
  }

  .feature-card img {
    width: 92px;
    height: 92px;
  }

  .step-list li {
    min-height: auto;
    padding: 18px;
  }

  .privacy-section {
    gap: 28px;
  }

  .privacy-grid article {
    min-height: auto;
  }

  .release-panel {
    padding: 20px;
  }

  .shihe-contact {
    padding-bottom: 92px;
  }

  .shihe-mobile-cta {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 30;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
    background: rgba(255, 255, 255, 0.91);
    border-top: 1px solid var(--line);
    backdrop-filter: blur(14px);
  }

  .shihe-mobile-cta a {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    color: #fff;
    background: linear-gradient(135deg, var(--blue), var(--violet), var(--pink));
    border-radius: 8px;
    font-weight: 800;
  }

  .shihe-mobile-cta a + a {
    color: var(--brand-dark);
    background: #fff;
    border: 1px solid var(--line);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .button {
    transition: none;
  }
}