:root {
  --bg: #08090c;
  --bg-soft: #11141a;
  --surface: #ffffff;
  --surface-soft: #f5f7fb;
  --text: #111318;
  --muted: #5b6372;
  --line: #e6e9ef;
  --accent: #ff3b3f;
  --accent-2: #ff9f12;
  --accent-dark: #d9272c;
  --shadow: 0 24px 60px rgba(21, 25, 35, .14);
  --radius: 8px;
  --container: 1180px;
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: #fff;
  font-size: 16px;
  line-height: 1.75;
}

body.modal-open {
  overflow: hidden;
}

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

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

.skip-link {
  position: absolute;
  left: 16px;
  top: -44px;
  z-index: 100;
  padding: 8px 12px;
  background: #fff;
  color: #000;
  border-radius: 6px;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(8, 9, 12, .92);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(100% - 40px, var(--container));
  min-height: 74px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-weight: 800;
  font-size: 24px;
  line-height: 1;
}

.brand img {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
}

.nav-links a {
  color: rgba(255, 255, 255, .82);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: #fff;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 8px;
  background: transparent;
  color: #fff;
  cursor: pointer;
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: currentColor;
  content: "";
}

.menu-toggle span::before {
  transform: translateY(-7px);
}

.menu-toggle span::after {
  transform: translateY(5px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 14px 34px rgba(255, 95, 37, .32);
}

.btn-primary .icon {
  color: currentColor;
}

.btn-primary:hover {
  box-shadow: 0 18px 42px rgba(255, 95, 37, .42);
}

.btn-secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, .22);
  background: rgba(255, 255, 255, .04);
}

.btn-secondary:hover {
  border-color: rgba(255, 255, 255, .45);
}

.btn-light {
  color: var(--accent-dark);
  background: #fff;
}

.hero {
  color: #fff;
  background:
    radial-gradient(circle at 82% 16%, rgba(255, 93, 30, .24), transparent 34%),
    linear-gradient(180deg, #050608 0%, #0b0d12 72%, #0c0e13 100%);
  overflow: hidden;
}

.hero-inner {
  width: min(100% - 40px, var(--container));
  min-height: 720px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, .84fr) minmax(560px, 1.16fr);
  align-items: center;
  gap: 52px;
  padding: 76px 0 68px;
}

.hero h1,
.page-hero h1 {
  margin: 0;
  font-size: 58px;
  line-height: 1.08;
  letter-spacing: 0;
}

.gradient-text {
  color: var(--accent);
  background: linear-gradient(135deg, #ff2f56 0%, #ff7a20 72%, #ffb21a 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  margin: 22px 0 0;
  max-width: 560px;
  color: rgba(255, 255, 255, .78);
  font-size: 19px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.hero-points {
  display: grid;
  grid-template-columns: repeat(4, max-content);
  gap: 20px;
  margin-top: 36px;
  color: rgba(255, 255, 255, .76);
  font-size: 14px;
  font-weight: 700;
}

.hero-points span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.icon {
  width: 20px;
  height: 20px;
  color: var(--accent-2);
  flex: none;
}

.product-frame {
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(255, 255, 255, .11), rgba(255, 255, 255, .035));
  box-shadow: 0 40px 80px rgba(0, 0, 0, .36);
  overflow: hidden;
}

.mock-window {
  min-height: 462px;
  background: #10131a;
}

.mock-top {
  height: 52px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.mock-title {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 800;
}

.mock-title img {
  width: 24px;
  height: 24px;
}

.mock-search {
  width: 34%;
  min-width: 190px;
  height: 32px;
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 6px;
  color: rgba(255, 255, 255, .45);
  background: rgba(255, 255, 255, .06);
  font-size: 12px;
  display: flex;
  align-items: center;
  padding: 0 12px;
}

.mock-body {
  display: grid;
  grid-template-columns: 168px 1fr;
  min-height: 410px;
}

.mock-side {
  padding: 18px 14px;
  border-right: 1px solid rgba(255, 255, 255, .08);
}

.mock-side div {
  height: 34px;
  margin-bottom: 7px;
  padding: 7px 10px;
  border-radius: 6px;
  color: rgba(255, 255, 255, .68);
  font-size: 12px;
}

.mock-side div:first-child {
  color: #fff;
  background: rgba(255, 255, 255, .12);
}

.mock-grid {
  padding: 20px;
}

.mock-grid h2 {
  margin: 0 0 16px;
  color: #fff;
  font-size: 18px;
  line-height: 1.3;
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.game-card {
  min-height: 160px;
  border-radius: 7px;
  background: linear-gradient(145deg, #20242d, #151922);
  overflow: hidden;
}

.game-cover {
  display: block;
  width: 100%;
  height: 114px;
  object-fit: cover;
}

.game-info {
  padding: 8px 9px;
  color: rgba(255, 255, 255, .78);
  font-size: 11px;
  line-height: 1.45;
}

.game-info strong {
  display: block;
  color: #fff;
  font-size: 12px;
}

.section {
  padding: 86px 0;
}

.section.compact {
  padding: 62px 0;
}

.band {
  background: var(--surface-soft);
}

.dark-band {
  color: #fff;
  background: #0c0f15;
}

.container {
  width: min(100% - 40px, var(--container));
  margin: 0 auto;
}

.section-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-head h2 {
  margin: 0;
  font-size: 34px;
  line-height: 1.22;
  letter-spacing: 0;
}

.section-head p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.dark-band .section-head p,
.dark-band .muted {
  color: rgba(255, 255, 255, .68);
}

.scenario-grid,
.feature-grid,
.download-grid,
.faq-grid,
.steps-grid {
  display: grid;
  gap: 22px;
}

.scenario-grid {
  grid-template-columns: repeat(4, 1fr);
}

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

.download-grid {
  grid-template-columns: 1fr;
  align-items: start;
}

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

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

.card,
.review-card,
.download-panel,
.faq-item,
.step-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 16px 42px rgba(18, 24, 35, .06);
}

.card {
  min-height: 218px;
  padding: 28px;
}

.card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 8px;
  display: grid;
  place-items: center;
}

.card-icon .icon {
  color: currentColor;
}

.card h3,
.review-card h3,
.download-panel h3,
.faq-item h3,
.step-card h3 {
  margin: 0 0 10px;
  font-size: 20px;
  line-height: 1.35;
}

.card p,
.review-card p,
.download-panel p,
.faq-item p,
.step-card p {
  margin: 0;
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: .96fr 1.04fr;
  gap: 56px;
  align-items: center;
}

.reviews {
  display: grid;
  gap: 18px;
}

.review-card {
  padding: 24px;
}

.stars {
  color: #ff9f12;
  font-size: 18px;
  letter-spacing: 0;
}

.review-meta {
  margin-top: 12px;
  color: #7b8494;
  font-size: 14px;
}

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

.feature-row {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.feature-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.feature-row .icon {
  width: 26px;
  height: 26px;
}

.feature-row h3 {
  margin: 0 0 4px;
  font-size: 19px;
}

.feature-row p {
  margin: 0;
  color: rgba(255, 255, 255, .68);
}

.page-hero {
  color: #fff;
  background:
    radial-gradient(circle at 78% 8%, rgba(255, 136, 20, .2), transparent 32%),
    linear-gradient(180deg, #07080b 0%, #10131a 100%);
}

.page-hero .container {
  min-height: 350px;
  padding: 72px 0;
  display: grid;
  align-items: center;
}

.page-hero p {
  max-width: 720px;
  margin: 20px 0 0;
  color: rgba(255, 255, 255, .72);
  font-size: 19px;
}

.text-block {
  max-width: 820px;
}

.text-block h2 {
  margin: 0 0 16px;
  font-size: 32px;
  line-height: 1.25;
}

.text-block p {
  color: var(--muted);
}

.download-panel {
  padding: 30px;
}

.download-panel.primary {
  border-color: rgba(255, 70, 54, .26);
  box-shadow: 0 24px 60px rgba(255, 91, 37, .12);
}

.download-meta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 22px 0;
}

.meta-box {
  padding: 14px;
  border-radius: 8px;
  background: var(--surface-soft);
}

.meta-box span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.meta-box strong {
  display: block;
  margin-top: 2px;
  font-size: 16px;
}

.link-list {
  padding: 0;
  margin: 18px 0 0;
  list-style: none;
}

.link-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.link-list li:last-child {
  border-bottom: 0;
}

.link-list a {
  color: var(--accent-dark);
  font-weight: 800;
}

.release-timeline {
  display: grid;
  gap: 16px;
  scroll-margin-top: 96px;
}

.release-item {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 22px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 16px 42px rgba(18, 24, 35, .06);
}

.release-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 2px;
}

.release-meta strong {
  color: var(--accent-dark);
  font-size: 26px;
  line-height: 1;
}

.release-meta span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.release-body h3 {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.35;
}

.release-body p {
  margin: 0;
  color: var(--muted);
}

.release-body a {
  display: inline-flex;
  margin-top: 12px;
  color: var(--accent-dark);
  font-weight: 800;
}

.step-card {
  padding: 26px;
}

.step-number {
  width: 38px;
  height: 38px;
  margin-bottom: 18px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font-weight: 900;
}

.faq-item {
  padding: 26px;
}

.cta-band {
  color: #fff;
  background: linear-gradient(135deg, #151820 0%, #10131a 46%, #4a1214 100%);
}

.cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
}

.cta-inner h2 {
  margin: 0;
  font-size: 34px;
  line-height: 1.25;
}

.cta-inner p {
  margin: 10px 0 0;
  color: rgba(255, 255, 255, .7);
}

.site-footer {
  color: rgba(255, 255, 255, .68);
  background: #08090c;
  border-top: 1px solid rgba(255, 255, 255, .08);
}

.footer-inner {
  width: min(100% - 40px, var(--container));
  margin: 0 auto;
  padding: 38px 0;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer-links a {
  color: #fff;
  font-weight: 700;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, .68);
}

.modal-backdrop[aria-hidden="false"] {
  display: flex;
}

.download-modal {
  width: min(100%, 760px);
  max-height: calc(100vh - 48px);
  overflow: auto;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 34px 90px rgba(0, 0, 0, .45);
}

.modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 30px 10px;
}

.modal-head h2 {
  margin: 0;
  font-size: 28px;
  line-height: 1.25;
}

.modal-head p {
  margin: 8px 0 0;
  color: var(--muted);
}

.modal-close {
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: #111;
  cursor: pointer;
  font-size: 24px;
  line-height: 1;
}

.qr-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  padding: 22px 30px 30px;
}

.qr-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: center;
  background: var(--surface-soft);
}

.qr-card img {
  width: 180px;
  height: 180px;
  margin: 0 auto 14px;
  border-radius: 6px;
  background: #fff;
}

.qr-card h3 {
  margin: 0 0 6px;
  font-size: 18px;
}

.qr-card p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 14px;
}

.source-note {
  margin-top: 28px;
  padding: 18px;
  border-left: 4px solid var(--accent);
  background: #fff7f4;
  color: #5d2a20;
}

.source-note a {
  color: var(--accent-dark);
  font-weight: 800;
}

.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;
}

@media (max-width: 980px) {
  .nav {
    min-height: 66px;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
  }

  .nav-links {
    position: absolute;
    left: 20px;
    right: 20px;
    top: 66px;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: 8px;
    background: #10131a;
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    width: 100%;
    padding: 14px;
  }

  .nav-actions .btn {
    display: none;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 64px 0 52px;
  }

  .hero h1,
  .page-hero h1 {
    font-size: 46px;
  }

  .hero-points {
    grid-template-columns: repeat(2, max-content);
  }

  .mock-body {
    grid-template-columns: 130px 1fr;
  }

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

  .scenario-grid,
  .feature-grid,
  .download-grid,
  .faq-grid,
  .steps-grid,
  .release-item,
  .split,
  .cta-inner,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    align-items: start;
  }
}

@media (max-width: 640px) {
  .container,
  .footer-inner,
  .nav,
  .hero-inner {
    width: min(100% - 28px, var(--container));
  }

  .brand {
    font-size: 21px;
  }

  .brand img {
    width: 38px;
    height: 38px;
  }

  .hero h1,
  .page-hero h1 {
    font-size: 36px;
  }

  .hero-subtitle,
  .page-hero p {
    font-size: 17px;
  }

  .hero-points {
    grid-template-columns: 1fr;
  }

  .hero-actions,
  .cta-inner .btn,
  .hero-actions .btn {
    width: 100%;
  }

  .mock-window {
    min-height: auto;
  }

  .mock-search,
  .mock-side {
    display: none;
  }

  .mock-body {
    grid-template-columns: 1fr;
  }

  .game-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px;
  }

  .game-card {
    min-height: 140px;
  }

  .game-cover {
    height: 92px;
  }

  .section {
    padding: 62px 0;
  }

  .section-head h2,
  .text-block h2,
  .cta-inner h2 {
    font-size: 28px;
  }

  .download-meta,
  .qr-grid {
    grid-template-columns: 1fr;
  }

  .modal-head,
  .qr-grid {
    padding-left: 20px;
    padding-right: 20px;
  }
}