:root {
  --blue-950: #18345f;
  --blue-900: #214675;
  --blue-700: #3d6fc4;
  --blue-600: #5689df;
  --blue-400: #8fb8f1;
  --blue-100: #eaf4ff;
  --red-600: #e9626b;
  --red-400: #f28c91;
  --red-100: #fff0f0;
  --gold-600: #c99546;
  --gold-400: #e3bd76;
  --gold-100: #fff7e6;
  --teal-600: #3f9c9c;
  --teal-100: #e8f8f7;
  --ink: #263a5b;
  --muted: #6f7d95;
  --line: rgba(55, 84, 128, 0.12);
  --paper: #fffdf9;
  --paper-blue: #f6fbff;
  --white: #fff;
  --shadow-sm: 0 12px 30px rgba(44, 71, 111, 0.08);
  --shadow-md: 0 24px 70px rgba(43, 72, 116, 0.14);
  --radius-lg: 32px;
  --radius-md: 22px;
  --radius-sm: 14px;
  --container: 1180px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei UI", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

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

.section-pad {
  padding: 112px 0;
}

.skip-link {
  position: fixed;
  z-index: 9999;
  top: 10px;
  left: 12px;
  transform: translateY(-150%);
  padding: 9px 14px;
  color: var(--white);
  background: var(--blue-900);
  border-radius: 8px;
}

.skip-link:focus {
  transform: none;
}

.site-header {
  position: fixed;
  z-index: 1000;
  top: 0;
  left: 0;
  width: 100%;
  border-bottom: 1px solid transparent;
  transition: background 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.site-header.is-scrolled {
  background: rgba(255, 253, 249, 0.9);
  border-color: var(--line);
  box-shadow: 0 8px 30px rgba(38, 58, 91, 0.06);
  backdrop-filter: blur(16px);
}

.nav-wrap {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.brand img {
  border: 1px solid rgba(184, 164, 137, 0.35);
  border-radius: 50%;
  filter: drop-shadow(0 7px 12px rgba(61, 111, 196, 0.2));
  object-fit: cover;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-copy strong {
  font-size: 17px;
  letter-spacing: 0.04em;
}

.brand-copy small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #53647e;
  font-size: 14px;
  font-weight: 700;
}

.site-nav a {
  position: relative;
  transition: color 0.2s ease;
}

.site-nav a:not(.nav-cta)::after {
  position: absolute;
  bottom: -8px;
  left: 50%;
  width: 0;
  height: 2px;
  content: "";
  background: var(--red-600);
  border-radius: 2px;
  transition: width 0.2s ease, left 0.2s ease;
}

.site-nav a:hover,
.site-nav a.is-current {
  color: var(--blue-900);
}

.site-nav a:hover::after,
.site-nav a.is-current::after {
  left: 0;
  width: 100%;
}

.site-nav .nav-cta {
  padding: 11px 20px;
  color: var(--white);
  background: var(--blue-700);
  border-radius: 999px;
  box-shadow: 0 8px 22px rgba(61, 111, 196, 0.24);
}

.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 0;
  background: transparent;
  border-radius: 13px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 23px;
  height: 2px;
  margin: 5px auto;
  background: var(--blue-900);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.hero {
  position: relative;
  min-height: 820px;
  padding: 170px 0 118px;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 31%, rgba(108, 165, 236, 0.2), transparent 28%),
    radial-gradient(circle at 15% 72%, rgba(243, 158, 162, 0.13), transparent 24%),
    linear-gradient(135deg, #fbfdff 0%, #f3f9ff 52%, #fff9f5 100%);
}

.hero::before {
  position: absolute;
  top: -250px;
  right: -180px;
  width: 650px;
  height: 650px;
  content: "";
  border: 1px solid rgba(89, 139, 214, 0.13);
  border-radius: 50%;
  box-shadow: 0 0 0 70px rgba(89, 139, 214, 0.025), 0 0 0 140px rgba(89, 139, 214, 0.018);
}

.hero::after {
  position: absolute;
  bottom: 105px;
  left: -100px;
  width: 300px;
  height: 300px;
  content: "";
  background-image: radial-gradient(rgba(232, 98, 107, 0.26) 1px, transparent 1px);
  background-size: 19px 19px;
  opacity: 0.55;
  mask-image: radial-gradient(circle, #000 0%, transparent 70%);
}

.hero-stars {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 7% 26%, rgba(82, 135, 214, 0.5) 0 2px, transparent 2.5px),
    radial-gradient(circle at 22% 13%, rgba(225, 174, 96, 0.7) 0 2px, transparent 2.5px),
    radial-gradient(circle at 62% 18%, rgba(82, 135, 214, 0.42) 0 2px, transparent 2.5px),
    radial-gradient(circle at 91% 18%, rgba(232, 98, 107, 0.42) 0 2px, transparent 2.5px),
    radial-gradient(circle at 86% 72%, rgba(225, 174, 96, 0.7) 0 2px, transparent 2.5px),
    radial-gradient(circle at 36% 80%, rgba(82, 135, 214, 0.45) 0 2px, transparent 2.5px);
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(550px, 1.1fr);
  align-items: center;
  gap: 70px;
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--red-600);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.eyebrow i {
  width: 22px;
  height: 1px;
  background: currentColor;
}

.hero h1 {
  margin: 20px 0 24px;
  color: var(--blue-950);
  font-size: clamp(45px, 5vw, 70px);
  line-height: 1.16;
  letter-spacing: -0.045em;
}

.hero h1 em {
  position: relative;
  color: var(--blue-700);
  font-style: normal;
  white-space: nowrap;
}

.hero h1 em::after {
  position: absolute;
  z-index: -1;
  bottom: 5px;
  left: 0;
  width: 100%;
  height: 13px;
  content: "";
  background: rgba(242, 140, 145, 0.22);
  border-radius: 50%;
  transform: rotate(-1deg);
}

.hero-lead {
  max-width: 590px;
  margin: 0;
  color: #63738b;
  font-size: 18px;
  line-height: 1.9;
}

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

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 800;
  line-height: 1;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.button svg {
  width: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.button-primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--blue-700), var(--blue-600));
  box-shadow: 0 14px 32px rgba(61, 111, 196, 0.25);
}

.button-primary:hover {
  box-shadow: 0 18px 38px rgba(61, 111, 196, 0.32);
}

.button-ghost {
  color: var(--blue-900);
  background: rgba(255, 255, 255, 0.76);
  border-color: rgba(61, 111, 196, 0.2);
}

.hero-stats {
  display: flex;
  gap: 35px;
  margin-top: 44px;
}

.hero-stats div {
  display: flex;
  flex-direction: column;
}

.hero-stats strong {
  color: var(--blue-950);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 31px;
  line-height: 1;
}

.hero-stats sup {
  color: var(--red-600);
  font-size: 16px;
}

.hero-stats span {
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
}

.hero-visual {
  position: relative;
  min-height: 790px;
}

.promo-full-card {
  position: absolute;
  z-index: 5;
  top: 0;
  right: 4px;
  width: 380px;
  aspect-ratio: 1;
  margin: 0;
  padding: 8px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.98);
  border-radius: 28px;
  box-shadow: 0 24px 60px rgba(38, 65, 104, 0.2);
  transform: none;
}

.promo-full-card img {
  width: 100%;
  height: 100%;
  border-radius: 20px;
  object-fit: contain;
}

.visual-window {
  position: absolute;
  z-index: 3;
  top: 398px;
  left: 0;
  width: min(545px, 96%);
  padding: 11px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.92);
  border-radius: 25px;
  box-shadow: 0 30px 80px rgba(36, 67, 111, 0.23);
  transform: rotate(-1.5deg);
  backdrop-filter: blur(16px);
}

.window-bar {
  height: 35px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 9px;
  color: #8390a3;
}

.window-bar span {
  width: 8px;
  height: 8px;
  background: #cbd7e6;
  border-radius: 50%;
}

.window-bar span:first-child { background: #f18a8f; }
.window-bar span:nth-child(2) { background: #e9bd68; }
.window-bar span:nth-child(3) { background: #70b9aa; }

.window-bar b {
  margin-left: auto;
  font-size: 10px;
  font-weight: 700;
}

.visual-window > img {
  width: 100%;
  border-radius: 16px;
}

.window-status {
  position: absolute;
  right: 22px;
  bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  color: var(--blue-900);
  background: rgba(255, 255, 255, 0.92);
  border-radius: 999px;
  box-shadow: 0 6px 20px rgba(37, 61, 99, 0.14);
  font-size: 10px;
  font-weight: 800;
}

.window-status i {
  width: 7px;
  height: 7px;
  background: #5bc18f;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(91, 193, 143, 0.14);
}

.magic-orbit {
  position: absolute;
  border: 1px solid rgba(76, 128, 204, 0.15);
  border-radius: 50%;
}

.magic-orbit::before,
.magic-orbit::after {
  position: absolute;
  width: 7px;
  height: 7px;
  content: "";
  background: var(--gold-400);
  border-radius: 50%;
  box-shadow: 0 0 16px var(--gold-400);
}

.orbit-one {
  top: 16px;
  left: 27px;
  width: 510px;
  height: 510px;
  animation: spin 32s linear infinite;
}

.orbit-one::before { top: 54px; right: 74px; }
.orbit-one::after { bottom: 35px; left: 110px; }

.orbit-two {
  top: 83px;
  left: 94px;
  width: 365px;
  height: 365px;
  border-style: dashed;
  animation: spin 22s linear infinite reverse;
}

.orbit-two::before { top: 95px; left: -3px; background: var(--red-400); }
.orbit-two::after { right: 38px; bottom: 48px; background: var(--blue-600); }

.hero-wave {
  position: absolute;
  z-index: 1;
  right: -2%;
  bottom: -68px;
  left: -2%;
  height: 150px;
  background: var(--paper);
  border-radius: 50% 50% 0 0 / 48% 48% 0 0;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.intro {
  padding-top: 70px;
}

.intro-card {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 30px;
  padding: 34px 38px;
  overflow: hidden;
  background: linear-gradient(100deg, #f5faff, #fffaf4);
  border: 1px solid rgba(72, 115, 181, 0.11);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.intro-card::after {
  position: absolute;
  top: -70px;
  right: 15%;
  width: 170px;
  height: 170px;
  content: "";
  border: 1px dashed rgba(70, 119, 192, 0.15);
  border-radius: 50%;
}

.intro-mark {
  display: grid;
  width: 94px;
  height: 94px;
  place-items: center;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 27px;
  box-shadow: inset 0 0 0 1px rgba(91, 137, 205, 0.12);
}

.intro-mark img,
.faq-mascot img,
.cta-card > img {
  border: 2px solid rgba(202, 181, 151, 0.45);
  border-radius: 50%;
  object-fit: cover;
}

.intro-card h2,
.section-heading h2,
.preview-copy h2,
.faq-aside h2,
.cta-card h2 {
  margin: 8px 0 14px;
  color: var(--blue-950);
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.3;
  letter-spacing: -0.025em;
}

.intro-card p {
  max-width: 700px;
  margin: 0;
  color: var(--muted);
}

.intro-note {
  position: relative;
  z-index: 1;
  min-width: 180px;
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(232, 98, 107, 0.12);
  border-radius: 17px;
  text-align: center;
}

.intro-note span {
  display: block;
  color: var(--muted);
  font-size: 11px;
}

.intro-note strong {
  display: block;
  margin-top: 5px;
  color: var(--red-600);
  font-size: 13px;
}

.feature-zones {
  background:
    radial-gradient(circle at 0% 20%, rgba(96, 151, 225, 0.08), transparent 22%),
    var(--paper);
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 50px;
  margin-bottom: 52px;
}

.section-heading > div {
  flex: 1 0 auto;
}

.section-heading h2 {
  margin-bottom: 0;
}

.section-heading > p {
  max-width: 500px;
  margin: 0 0 5px;
  color: var(--muted);
}

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

.zone-card {
  position: relative;
  min-height: 380px;
  display: flex;
  flex-direction: column;
  padding: 27px;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 26px;
  box-shadow: 0 16px 40px rgba(43, 72, 116, 0.07);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.zone-card::after {
  position: absolute;
  right: -35px;
  bottom: -45px;
  width: 145px;
  height: 145px;
  content: "";
  background: var(--zone-soft);
  border-radius: 50%;
  opacity: 0.8;
}

.zone-card:hover {
  z-index: 2;
  border-color: var(--zone-color);
  box-shadow: 0 25px 58px rgba(43, 72, 116, 0.13);
  transform: translateY(-8px);
}

.zone-blue { --zone-color: var(--blue-600); --zone-soft: var(--blue-100); }
.zone-red { --zone-color: var(--red-600); --zone-soft: var(--red-100); }
.zone-gold { --zone-color: var(--gold-600); --zone-soft: var(--gold-100); }
.zone-teal { --zone-color: var(--teal-600); --zone-soft: var(--teal-100); }

.zone-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.zone-icon {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  color: var(--zone-color);
  background: var(--zone-soft);
  border-radius: 17px;
}

.zone-icon svg {
  width: 28px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.zone-number {
  color: rgba(38, 58, 91, 0.09);
  font-family: Georgia, serif;
  font-size: 35px;
  font-weight: 800;
}

.zone-card h3 {
  margin: 25px 0 12px;
  color: var(--blue-950);
  font-size: 22px;
}

.zone-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
}

.mini-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 20px;
}

.mini-tags span {
  padding: 5px 9px;
  color: var(--zone-color);
  background: var(--zone-soft);
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
}

.zone-card a {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding-top: 22px;
  color: var(--zone-color);
  font-size: 12px;
  font-weight: 800;
}

.zone-card a b {
  transition: transform 0.2s ease;
}

.zone-card a:hover b {
  transform: translateX(4px);
}

.product-preview {
  position: relative;
  overflow: hidden;
  background: #f4f9ff;
}

.product-preview::before {
  position: absolute;
  top: 0;
  left: 50%;
  width: 500px;
  height: 500px;
  content: "";
  background-image: radial-gradient(rgba(69, 117, 188, 0.14) 1px, transparent 1px);
  background-size: 18px 18px;
  opacity: 0.4;
  mask-image: radial-gradient(circle, #000, transparent 68%);
}

.preview-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  align-items: center;
  gap: 85px;
}

.preview-copy p {
  margin: 0;
  color: var(--muted);
}

.check-list {
  display: grid;
  gap: 13px;
  margin: 28px 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  display: flex;
  align-items: center;
  gap: 11px;
  color: #51617a;
  font-size: 14px;
}

.check-list span {
  display: grid;
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  place-items: center;
  color: var(--blue-700);
  background: var(--blue-100);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 900;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--blue-700);
  font-weight: 800;
}

.text-link span {
  transition: transform 0.2s ease;
}

.text-link:hover span {
  transform: translateX(4px);
}

.preview-stage {
  position: relative;
  min-height: 480px;
  display: grid;
  place-items: center;
}

.preview-glow {
  position: absolute;
  width: 440px;
  height: 440px;
  background: radial-gradient(circle, rgba(100, 154, 227, 0.25), transparent 66%);
  border-radius: 50%;
}

.desktop-frame {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 10px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.96);
  border-radius: 25px;
  box-shadow: 0 30px 70px rgba(44, 78, 126, 0.22);
  transform: perspective(1000px) rotateY(-3deg) rotateX(1deg);
}

.desktop-head {
  height: 39px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0 10px;
  color: #728098;
  font-size: 10px;
}

.desktop-head i {
  width: 9px;
  height: 9px;
  background: var(--blue-600);
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--blue-100);
}

.desktop-head b {
  margin-left: auto;
  letter-spacing: 5px;
}

.desktop-frame > img {
  width: 100%;
  border-radius: 15px;
}

.preview-badge {
  position: absolute;
  z-index: 4;
  padding: 10px 15px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(83, 132, 204, 0.13);
  border-radius: 14px;
  box-shadow: 0 12px 30px rgba(45, 74, 115, 0.14);
  font-size: 11px;
  font-weight: 800;
  backdrop-filter: blur(12px);
}

.preview-badge b {
  margin-left: 7px;
  color: #4fb289;
}

.badge-one {
  top: 35px;
  right: -12px;
}

.badge-two {
  bottom: 28px;
  left: -18px;
  color: var(--red-600);
}

.download-center {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 6% 18%, rgba(91, 150, 226, 0.13), transparent 24%),
    radial-gradient(circle at 94% 84%, rgba(239, 111, 116, 0.12), transparent 24%),
    linear-gradient(180deg, #f7fbff 0%, #fffdf9 100%);
}

.download-center::before {
  position: absolute;
  top: 55px;
  right: 3%;
  width: 230px;
  height: 230px;
  content: "";
  border: 1px dashed rgba(76, 125, 198, 0.16);
  border-radius: 50%;
  box-shadow: 0 0 0 55px rgba(76, 125, 198, 0.018), 0 0 0 110px rgba(76, 125, 198, 0.012);
}

.download-heading {
  position: relative;
  z-index: 1;
}

.download-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.13fr 0.87fr;
  align-items: stretch;
  gap: 22px;
}

.download-primary-card,
.download-guide-card {
  border-radius: 30px;
  box-shadow: 0 22px 62px rgba(39, 70, 115, 0.13);
}

.download-primary-card {
  position: relative;
  padding: 35px;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 88% 8%, rgba(242, 140, 145, 0.36), transparent 24%),
    linear-gradient(135deg, #244e8e 0%, #3e72bf 62%, #547fc0 100%);
}

.download-primary-card::before,
.download-primary-card::after {
  position: absolute;
  content: "";
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 50%;
}

.download-primary-card::before {
  top: -145px;
  right: -105px;
  width: 360px;
  height: 360px;
}

.download-primary-card::after {
  bottom: -210px;
  left: -100px;
  width: 390px;
  height: 390px;
}

.download-primary-card > * {
  position: relative;
  z-index: 1;
}

.download-card-head {
  display: flex;
  align-items: center;
  gap: 17px;
}

.download-app-icon {
  position: relative;
  width: 80px;
  height: 80px;
  flex: 0 0 80px;
}

.download-app-icon img {
  width: 80px;
  height: 80px;
  border: 3px solid rgba(255, 255, 255, 0.88);
  border-radius: 23px;
  box-shadow: 0 13px 30px rgba(17, 44, 84, 0.24);
  object-fit: cover;
}

.download-app-icon span {
  position: absolute;
  right: -7px;
  bottom: -5px;
  padding: 4px 7px;
  color: var(--blue-900);
  background: var(--white);
  border-radius: 7px;
  box-shadow: 0 6px 16px rgba(19, 43, 78, 0.2);
  font-family: Georgia, serif;
  font-size: 8px;
  font-weight: 900;
}

.download-version-wrap {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.download-version-wrap span {
  color: #d8e7fb;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.11em;
}

.download-version-wrap strong {
  margin-top: 5px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 27px;
  letter-spacing: 0.035em;
}

.download-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 8px 12px;
  color: #e4f8ee;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
  backdrop-filter: blur(8px);
}

.download-status i {
  width: 7px;
  height: 7px;
  background: #73d3a4;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(115, 211, 164, 0.13);
}

.download-status.is-error {
  color: #ffe5e5;
}

.download-status.is-error i {
  background: #ff9a9e;
}

.download-primary-card h3 {
  margin: 31px 0 9px;
  color: var(--white);
  font-size: 25px;
}

.download-description {
  max-width: 600px;
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

.download-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 26px;
}

.download-meta span {
  padding: 12px 13px;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 14px;
}

.download-meta small,
.download-meta b {
  display: block;
}

.download-meta small {
  color: rgba(255, 255, 255, 0.55);
  font-size: 9px;
}

.download-meta b {
  margin-top: 4px;
  color: var(--white);
  font-size: 11px;
}

.download-actions {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 11px;
  margin-top: 23px;
}

.download-main-button,
.download-secondary-button {
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 17px;
  font-weight: 900;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.download-main-button:hover,
.download-secondary-button:hover {
  transform: translateY(-3px);
}

.download-main-button {
  justify-content: flex-start;
  gap: 13px;
  padding: 11px 18px;
  color: var(--blue-900);
  background: var(--white);
  box-shadow: 0 13px 30px rgba(20, 47, 87, 0.22);
}

.download-main-button svg {
  width: 25px;
  flex: 0 0 25px;
  fill: none;
  stroke: var(--blue-700);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.download-main-button span {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.download-main-button b {
  font-size: 13px;
}

.download-main-button small {
  max-width: 280px;
  margin-top: 4px;
  overflow: hidden;
  color: #8491a5;
  font-size: 9px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.download-secondary-button {
  padding: 12px 19px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.23);
  font-size: 11px;
}

.download-hash {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 11px;
  margin-top: 16px;
  padding: 10px 12px;
  background: rgba(20, 49, 91, 0.18);
  border-radius: 12px;
}

.download-hash > span {
  color: #c7dcf7;
  font-size: 9px;
  font-weight: 900;
}

.download-hash code {
  overflow: hidden;
  color: rgba(255, 255, 255, 0.7);
  font-family: Consolas, monospace;
  font-size: 9px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.download-hash button {
  padding: 5px 8px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 7px;
  cursor: pointer;
  font-size: 9px;
  font-weight: 800;
}

.download-hash.download-integrity {
  grid-template-columns: auto minmax(0, 1fr);
}

.download-guide-card {
  position: relative;
  padding: 31px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(55, 84, 128, 0.11);
}

.download-guide-card::after {
  position: absolute;
  top: -65px;
  right: -55px;
  width: 180px;
  height: 180px;
  content: "";
  background: var(--red-100);
  border-radius: 50%;
  opacity: 0.7;
}

.download-guide-card > * {
  position: relative;
  z-index: 1;
}

.download-guide-kicker {
  color: var(--red-600);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.11em;
}

.download-steps {
  display: grid;
  gap: 15px;
  margin: 22px 0;
  padding: 0;
  list-style: none;
}

.download-steps li {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 12px;
}

.download-steps li > span {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  color: var(--blue-700);
  background: var(--blue-100);
  border-radius: 11px;
  font-family: Georgia, serif;
  font-size: 13px;
  font-weight: 900;
}

.download-steps li:nth-child(2) > span {
  color: var(--red-600);
  background: var(--red-100);
}

.download-steps li:nth-child(3) > span {
  color: var(--gold-600);
  background: var(--gold-100);
}

.download-steps strong {
  display: block;
  color: var(--blue-950);
  font-size: 13px;
}

.download-steps p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.65;
}

.download-path-preview {
  padding: 13px 15px;
  background: #f5f9ff;
  border: 1px solid rgba(61, 111, 196, 0.1);
  border-radius: 13px;
}

.download-path-preview span,
.download-path-preview code {
  display: block;
}

.download-path-preview span {
  color: var(--muted);
  font-size: 9px;
  font-weight: 800;
}

.download-path-preview code {
  margin-top: 5px;
  overflow: hidden;
  color: var(--blue-700);
  font-family: Consolas, "Microsoft YaHei UI", monospace;
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.download-warning {
  display: grid;
  grid-template-columns: 31px 1fr;
  gap: 10px;
  margin-top: 14px;
  padding: 12px;
  background: #fff8ee;
  border: 1px solid rgba(201, 149, 70, 0.15);
  border-radius: 13px;
}

.download-warning > span {
  display: grid;
  width: 29px;
  height: 29px;
  place-items: center;
  color: #a66c22;
  background: #ffedca;
  border-radius: 9px;
  font-family: Georgia, serif;
  font-weight: 900;
}

.download-warning p {
  margin: 0;
  color: #8b7555;
  font-size: 9px;
  line-height: 1.65;
}

.download-warning strong {
  display: block;
  color: #835e29;
}

.release-notes {
  margin-top: 16px;
}

.release-notes > span {
  color: var(--blue-950);
  font-size: 10px;
  font-weight: 900;
}

.release-notes ul {
  display: grid;
  gap: 5px;
  margin: 8px 0 0;
  padding: 0;
  color: var(--muted);
  list-style: none;
  font-size: 9px;
}

.release-notes li {
  position: relative;
  padding-left: 13px;
}

.release-notes li::before {
  position: absolute;
  top: 8px;
  left: 0;
  width: 5px;
  height: 5px;
  content: "";
  background: var(--red-400);
  border-radius: 50%;
}

.catalog {
  background:
    radial-gradient(circle at 95% 18%, rgba(242, 140, 145, 0.1), transparent 25%),
    var(--paper);
}

.catalog-heading {
  margin-bottom: 32px;
}

.catalog-tools {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin-bottom: 34px;
  padding: 16px;
  background: #f7faff;
  border: 1px solid rgba(60, 107, 180, 0.1);
  border-radius: 20px;
}

.search-box {
  min-width: 310px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--white);
  border: 1px solid rgba(55, 84, 128, 0.13);
  border-radius: 13px;
  box-shadow: 0 7px 18px rgba(42, 69, 107, 0.04);
}

.search-box:focus-within {
  border-color: var(--blue-400);
  box-shadow: 0 0 0 3px rgba(86, 137, 223, 0.1);
}

.search-box svg {
  width: 20px;
  flex: 0 0 20px;
  fill: none;
  stroke: #8b98aa;
  stroke-width: 1.8;
  stroke-linecap: round;
}

.search-box input {
  width: 100%;
  padding: 0;
  color: var(--ink);
  background: transparent;
  border: 0;
  outline: 0;
  font-size: 13px;
}

.search-box input::placeholder {
  color: #a2adbb;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.filter-button {
  padding: 9px 14px;
  color: #738198;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
  transition: 0.2s ease;
}

.filter-button:hover {
  color: var(--blue-700);
  background: var(--white);
}

.filter-button.is-active {
  color: var(--white);
  background: var(--blue-700);
  box-shadow: 0 8px 18px rgba(61, 111, 196, 0.2);
}

.feature-cloud {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.feature-pill {
  position: relative;
  min-height: 64px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(44, 71, 111, 0.045);
  font-size: 12px;
  font-weight: 800;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.feature-pill::before {
  width: 8px;
  height: 8px;
  flex: 0 0 8px;
  content: "";
  background: var(--pill-color);
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--pill-soft);
}

.feature-pill:hover {
  z-index: 1;
  border-color: var(--pill-color);
  box-shadow: 0 13px 28px rgba(44, 71, 111, 0.09);
  transform: translateY(-3px);
}

.feature-pill[data-category="manage"] { --pill-color: var(--blue-600); --pill-soft: var(--blue-100); }
.feature-pill[data-category="fun"] { --pill-color: var(--red-600); --pill-soft: var(--red-100); }
.feature-pill[data-category="growth"] { --pill-color: var(--gold-600); --pill-soft: var(--gold-100); }
.feature-pill[data-category="tools"] { --pill-color: var(--teal-600); --pill-soft: var(--teal-100); }

.catalog-empty {
  margin: 30px 0;
  color: var(--muted);
  text-align: center;
}

.catalog-footnote {
  margin-top: 28px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.catalog-footnote span {
  margin-right: 5px;
  color: var(--gold-600);
}

.guide {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #fff8f5, #f5faff 75%);
}

.guide::after {
  position: absolute;
  right: -120px;
  bottom: -180px;
  width: 420px;
  height: 420px;
  content: "";
  border: 1px dashed rgba(77, 124, 193, 0.16);
  border-radius: 50%;
  box-shadow: 0 0 0 70px rgba(77, 124, 193, 0.02), 0 0 0 140px rgba(77, 124, 193, 0.016);
}

.guide-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.07fr 0.93fr;
  align-items: stretch;
  gap: 52px;
}

.step-list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.step-card {
  position: relative;
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 20px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(62, 105, 169, 0.1);
  border-radius: 21px;
  box-shadow: 0 12px 30px rgba(43, 72, 116, 0.06);
}

.step-card:not(:last-child)::after {
  position: absolute;
  z-index: -1;
  bottom: -23px;
  left: 58px;
  width: 1px;
  height: 30px;
  content: "";
  background: linear-gradient(var(--blue-400), transparent);
}

.step-number {
  display: grid;
  width: 60px;
  height: 60px;
  place-items: center;
  color: var(--blue-700);
  background: var(--blue-100);
  border-radius: 18px;
  font-family: Georgia, serif;
  font-size: 18px;
  font-weight: 800;
}

.step-card:nth-child(2) .step-number {
  color: var(--red-600);
  background: var(--red-100);
}

.step-card:nth-child(3) .step-number {
  color: var(--gold-600);
  background: var(--gold-100);
}

.step-card h3 {
  margin: 2px 0 7px;
  color: var(--blue-950);
  font-size: 18px;
}

.step-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.copy-command {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 15px;
  padding: 7px 11px 7px 7px;
  color: var(--blue-700);
  background: #f6faff;
  border: 1px solid rgba(61, 111, 196, 0.13);
  border-radius: 11px;
  cursor: pointer;
}

.copy-command code {
  padding: 5px 14px;
  color: var(--white);
  background: var(--blue-700);
  border-radius: 8px;
  font-family: inherit;
  font-weight: 900;
}

.copy-command span {
  font-size: 11px;
  font-weight: 800;
}

.guide-companion {
  position: relative;
  min-height: 530px;
  overflow: hidden;
  background: linear-gradient(180deg, #eaf5f3, #fff);
  border: 8px solid rgba(255, 255, 255, 0.8);
  border-radius: 38px;
  box-shadow: var(--shadow-md);
}

.companion-image {
  position: absolute;
  inset: 0;
}

.companion-image::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(180deg, transparent 45%, rgba(32, 68, 91, 0.3));
}

.companion-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.speech-bubble {
  position: absolute;
  right: 18px;
  bottom: 18px;
  left: 18px;
  padding: 20px 22px;
  background: rgba(255, 255, 255, 0.91);
  border: 1px solid rgba(255, 255, 255, 0.98);
  border-radius: 20px;
  box-shadow: 0 15px 36px rgba(37, 62, 91, 0.14);
  backdrop-filter: blur(12px);
}

.speech-bubble > span {
  color: var(--teal-600);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.speech-bubble strong {
  display: block;
  margin: 6px 0;
  color: var(--blue-950);
  font-size: 17px;
}

.speech-bubble p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.advantages {
  background: var(--paper);
}

.section-heading.centered {
  display: block;
  max-width: 700px;
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section-heading.centered > p {
  max-width: none;
}

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

.advantage-card {
  position: relative;
  min-height: 245px;
  padding: 29px 25px;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 12px 34px rgba(42, 69, 107, 0.055);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.advantage-card::after {
  position: absolute;
  right: -18px;
  bottom: -30px;
  content: "✦";
  color: rgba(86, 137, 223, 0.06);
  font-family: Georgia, serif;
  font-size: 110px;
}

.advantage-card:nth-child(2)::after { color: rgba(63, 156, 156, 0.06); }
.advantage-card:nth-child(3)::after { color: rgba(233, 98, 107, 0.065); }
.advantage-card:nth-child(4)::after { color: rgba(201, 149, 70, 0.065); }

.advantage-card:hover {
  box-shadow: 0 22px 48px rgba(42, 69, 107, 0.1);
  transform: translateY(-6px);
}

.advantage-icon {
  display: grid;
  width: 50px;
  height: 50px;
  place-items: center;
  color: var(--blue-700);
  background: var(--blue-100);
  border-radius: 16px;
  font-family: Georgia, serif;
  font-size: 22px;
}

.advantage-card:nth-child(2) .advantage-icon { color: var(--teal-600); background: var(--teal-100); }
.advantage-card:nth-child(3) .advantage-icon { color: var(--red-600); background: var(--red-100); }
.advantage-card:nth-child(4) .advantage-icon { color: var(--gold-600); background: var(--gold-100); }

.advantage-card h3 {
  margin: 22px 0 9px;
  color: var(--blue-950);
  font-size: 19px;
}

.advantage-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.faq {
  background: #f5f9ff;
}

.faq-grid {
  display: grid;
  grid-template-columns: 0.67fr 1.33fr;
  gap: 80px;
}

.faq-aside {
  position: sticky;
  top: 120px;
  align-self: start;
}

.faq-aside p {
  color: var(--muted);
  font-size: 14px;
}

.faq-mascot {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-top: 28px;
  padding: 15px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(61, 111, 196, 0.1);
  border-radius: 18px;
  font-size: 11px;
  font-weight: 800;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  overflow: hidden;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(55, 84, 128, 0.1);
  border-radius: 18px;
  box-shadow: 0 8px 28px rgba(42, 69, 107, 0.045);
}

.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 21px 23px;
  color: var(--blue-950);
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 800;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary span {
  position: relative;
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  background: var(--blue-100);
  border-radius: 50%;
}

.faq-list summary span::before,
.faq-list summary span::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 9px;
  height: 1.5px;
  content: "";
  background: var(--blue-700);
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: transform 0.2s ease;
}

.faq-list summary span::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-list details[open] summary span::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.faq-list details[open] {
  border-color: rgba(86, 137, 223, 0.24);
}

.faq-list details p {
  margin: -2px 23px 0;
  padding: 0 38px 22px 0;
  color: var(--muted);
  font-size: 13px;
}

.contact {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 13% 16%, rgba(86, 137, 223, 0.1), transparent 23%),
    radial-gradient(circle at 88% 78%, rgba(242, 140, 145, 0.11), transparent 24%),
    var(--paper);
}

.contact::before {
  position: absolute;
  top: 70px;
  right: 5%;
  width: 190px;
  height: 190px;
  content: "";
  background-image: radial-gradient(rgba(71, 117, 187, 0.18) 1px, transparent 1px);
  background-size: 17px 17px;
  opacity: 0.55;
  mask-image: radial-gradient(circle, #000, transparent 70%);
}

.contact-grid {
  position: relative;
  z-index: 1;
  max-width: 920px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin: 0 auto;
}

.contact-card {
  position: relative;
  min-height: 430px;
  display: flex;
  flex-direction: column;
  padding: 32px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: 29px;
  box-shadow: 0 18px 55px rgba(42, 69, 107, 0.09);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.contact-card::after {
  position: absolute;
  right: -50px;
  bottom: -70px;
  width: 190px;
  height: 190px;
  content: "";
  background: var(--contact-soft);
  border-radius: 50%;
}

.contact-card:hover {
  box-shadow: 0 28px 65px rgba(42, 69, 107, 0.14);
  transform: translateY(-7px);
}

.contact-author {
  --contact-color: var(--blue-700);
  --contact-soft: var(--blue-100);
}

.contact-group {
  --contact-color: var(--red-600);
  --contact-soft: var(--red-100);
}

.contact-card-top {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 25px;
}

.contact-avatar {
  position: relative;
  width: 82px;
  height: 82px;
}

.contact-avatar img {
  width: 82px;
  height: 82px;
  border: 3px solid var(--white);
  border-radius: 50%;
  box-shadow: 0 10px 26px rgba(53, 85, 130, 0.16);
  object-fit: cover;
}

.contact-avatar i {
  position: absolute;
  right: 1px;
  bottom: 5px;
  width: 16px;
  height: 16px;
  background: #56bd8c;
  border: 3px solid var(--white);
  border-radius: 50%;
}

.contact-group-icon {
  display: grid;
  width: 82px;
  height: 82px;
  place-items: center;
  color: var(--red-600);
  background: var(--red-100);
  border-radius: 25px;
}

.contact-group-icon svg {
  width: 42px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.contact-type {
  padding: 6px 10px;
  color: var(--contact-color);
  background: var(--contact-soft);
  border-radius: 999px;
  font-family: Georgia, serif;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.13em;
}

.contact-label {
  position: relative;
  z-index: 1;
  color: var(--contact-color);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.11em;
}

.contact-card h3 {
  position: relative;
  z-index: 1;
  margin: 5px 0 0;
  color: var(--blue-950);
  font-size: 21px;
}

.contact-number {
  position: relative;
  z-index: 1;
  display: block;
  margin: 6px 0 12px;
  color: var(--contact-color);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(31px, 4vw, 42px);
  line-height: 1.2;
  letter-spacing: 0.035em;
}

.contact-card > p {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.contact-actions {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: auto;
  padding-top: 27px;
}

.contact-button {
  min-height: 43px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 900;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.contact-button:hover {
  transform: translateY(-2px);
}

.contact-button-primary {
  color: var(--white);
  background: var(--contact-color);
  box-shadow: 0 10px 24px color-mix(in srgb, var(--contact-color) 24%, transparent);
}

.contact-button-copy {
  color: var(--contact-color);
  background: var(--contact-soft);
  border-color: color-mix(in srgb, var(--contact-color) 16%, transparent);
}

.contact-tip {
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.contact-tip span {
  margin-right: 6px;
  color: var(--gold-600);
}

.final-cta {
  padding: 90px 0 0;
  background: #f5f9ff;
}

.cta-card {
  position: relative;
  padding: 70px 30px;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 80% 15%, rgba(247, 177, 181, 0.35), transparent 25%),
    linear-gradient(135deg, #315fa8, #4f83d2 58%, #d96c76 130%);
  border-radius: 38px 38px 0 0;
  text-align: center;
  box-shadow: 0 -20px 70px rgba(42, 74, 123, 0.14);
}

.cta-card::before,
.cta-card::after {
  position: absolute;
  content: "";
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 50%;
}

.cta-card::before {
  top: -230px;
  left: -90px;
  width: 500px;
  height: 500px;
}

.cta-card::after {
  right: -80px;
  bottom: -240px;
  width: 480px;
  height: 480px;
}

.cta-card > * {
  position: relative;
  z-index: 1;
}

.cta-card > img {
  margin: 0 auto 18px;
  background: #fffaf6;
  filter: drop-shadow(0 12px 22px rgba(26, 55, 97, 0.25));
}

.cta-card > span {
  color: #dbeaff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.cta-card h2 {
  max-width: 740px;
  margin: 12px auto 13px;
  color: var(--white);
}

.cta-card > p {
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
}

.cta-actions {
  justify-content: center;
  margin-top: 29px;
}

.button-light {
  color: var(--blue-900);
  background: var(--white);
  box-shadow: 0 14px 30px rgba(24, 52, 95, 0.2);
}

.button-outline-light {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.34);
}

.cta-stars {
  position: absolute;
  top: 22px;
  right: 32px;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 8px;
}

.site-footer {
  padding: 45px 0 22px;
  color: #b5c7df;
  background: #1c3863;
}

.footer-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding-bottom: 35px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .brand-copy strong {
  color: var(--white);
}

.footer-brand .brand-copy small {
  color: #9eb5d3;
}

.footer-main nav {
  display: flex;
  gap: 27px;
  font-size: 12px;
  font-weight: 700;
}

.footer-main nav a:hover {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 22px;
  color: #8da7c9;
  font-size: 10px;
}

.footer-bottom p {
  margin: 0;
}

.back-top {
  position: fixed;
  z-index: 900;
  right: 24px;
  bottom: 24px;
  width: 44px;
  height: 44px;
  color: var(--white);
  background: var(--blue-700);
  border: 0;
  border-radius: 50%;
  box-shadow: 0 12px 28px rgba(42, 77, 130, 0.28);
  cursor: pointer;
  opacity: 0;
  transform: translateY(15px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.back-top.is-visible {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.toast {
  position: fixed;
  z-index: 1200;
  bottom: 28px;
  left: 50%;
  padding: 12px 20px;
  color: var(--white);
  background: rgba(28, 56, 99, 0.94);
  border-radius: 999px;
  box-shadow: 0 14px 35px rgba(30, 52, 85, 0.22);
  font-size: 12px;
  font-weight: 800;
  opacity: 0;
  transform: translate(-50%, 18px);
  pointer-events: none;
  transition: 0.25s ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 1100px) {
  .site-nav { gap: 19px; }

  .hero-grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(450px, 1.1fr);
    gap: 30px;
  }

  .hero h1 { font-size: 54px; }
  .promo-full-card { width: 340px; }
  .visual-window { top: 360px; width: min(510px, 96%); }

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

  .zone-card { min-height: 340px; }
  .feature-cloud { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .preview-grid { gap: 45px; }
}

@media (max-width: 900px) {
  .section-pad { padding: 88px 0; }

  /* backdrop-filter 会让全屏 fixed 菜单改为相对 header 定位，滚动后会与正文重叠。 */
  .site-header.is-scrolled {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }

  .nav-toggle {
    display: block;
    position: relative;
    z-index: 2;
  }

  .nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-7px) rotate(-45deg); }

  .site-nav {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 25px;
    padding: 100px 30px 50px;
    background: rgba(255, 253, 249, 0.97);
    backdrop-filter: blur(18px);
    font-size: 18px;
    z-index: 1;
    min-height: 100vh;
    min-height: 100dvh;
    overflow-y: auto;
    opacity: 0;
    transform: translateY(-20px);
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
  }

  .site-nav.is-open {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  .hero {
    padding-top: 140px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 65px;
  }

  .hero-copy {
    max-width: 720px;
    text-align: center;
    margin: 0 auto;
  }

  .eyebrow { justify-content: center; }
  .hero-lead { margin-inline: auto; }
  .hero-actions, .hero-stats { justify-content: center; }

  .hero-visual {
    width: min(640px, 100%);
    min-height: 760px;
    margin-inline: auto;
  }

  .promo-full-card {
    right: 18px;
    width: 360px;
  }

  .visual-window {
    top: 382px;
    left: 20px;
    width: min(560px, 92%);
  }

  .intro-card {
    grid-template-columns: auto 1fr;
  }

  .intro-note {
    grid-column: 1 / -1;
  }

  .section-heading {
    display: block;
  }

  .section-heading > p {
    margin-top: 17px;
  }

  .preview-grid {
    grid-template-columns: 1fr;
  }

  .preview-copy {
    max-width: 650px;
  }

  .preview-stage {
    min-height: auto;
    padding: 20px 0 35px;
  }

  .download-layout {
    grid-template-columns: 1fr;
  }

  .catalog-tools {
    align-items: stretch;
    flex-direction: column;
  }

  .filter-row { justify-content: flex-start; }
  .search-box { min-width: 0; }
  .feature-cloud { grid-template-columns: repeat(4, minmax(0, 1fr)); }

  .guide-layout {
    grid-template-columns: 1fr;
  }

  .guide-companion {
    min-height: 520px;
    max-width: 520px;
    width: 100%;
    margin-inline: auto;
  }

  .faq-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .faq-aside {
    position: static;
    max-width: 650px;
  }

  .contact-grid {
    max-width: 760px;
  }
}

@media (max-width: 680px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .section-pad { padding: 72px 0; }
  .nav-wrap { min-height: 74px; }

  .brand-copy strong { font-size: 14px; }
  .brand-copy small { display: none; }
  .brand img { width: 42px; height: 42px; }

  .hero {
    min-height: auto;
    padding: 116px 0 90px;
  }

  .hero h1 {
    margin-top: 16px;
    font-size: clamp(39px, 12vw, 54px);
    letter-spacing: -0.06em;
  }

  .hero-lead { font-size: 16px; }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

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

  .hero-stats {
    gap: 20px;
    justify-content: space-between;
  }

  .hero-stats strong { font-size: 26px; }
  .hero-stats span { max-width: 88px; font-size: 10px; }

  .hero-visual {
    min-height: 690px;
  }

  .promo-full-card {
    top: 0;
    right: auto;
    left: 50%;
    width: min(calc(100% - 20px), 350px);
    transform: translateX(-50%);
  }

  .visual-window {
    top: 374px;
    left: 0;
    width: 100%;
    transform: none;
  }

  .magic-orbit { display: none; }
  .window-status { display: none; }

  .intro { padding-top: 30px; }
  .intro-card {
    grid-template-columns: 1fr;
    padding: 27px 23px;
    text-align: center;
  }

  .intro-mark { margin-inline: auto; }
  .intro-card h2,
  .section-heading h2,
  .preview-copy h2,
  .faq-aside h2,
  .cta-card h2 { font-size: 31px; }

  .zone-grid,
  .advantage-grid {
    grid-template-columns: 1fr;
  }

  .zone-card { min-height: 325px; }

  .desktop-frame {
    padding: 7px;
    border-radius: 19px;
    transform: none;
  }

  .desktop-head { height: 31px; }
  .preview-badge { display: none; }

  .download-primary-card,
  .download-guide-card {
    padding: 24px;
    border-radius: 24px;
  }

  .download-card-head {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .download-status {
    margin-left: 0;
  }

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

  .download-actions {
    grid-template-columns: 1fr;
  }

  .download-hash {
    grid-template-columns: auto 1fr;
  }

  .download-hash button {
    grid-column: 1 / -1;
  }

  .filter-row {
    flex-wrap: nowrap;
    padding-bottom: 3px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .filter-row::-webkit-scrollbar { display: none; }
  .filter-button { flex: 0 0 auto; }
  .feature-cloud { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .step-card {
    grid-template-columns: 50px 1fr;
    gap: 14px;
    padding: 20px 17px;
  }

  .step-number {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    font-size: 14px;
  }

  .step-card:not(:last-child)::after { left: 41px; }
  .guide-companion { min-height: 430px; border-radius: 28px; }

  .faq-list summary {
    padding: 18px;
    font-size: 14px;
  }

  .faq-list details p {
    margin-inline: 18px;
    padding-right: 8px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .contact-card {
    min-height: 405px;
    padding: 25px;
  }

  .contact-number {
    font-size: 34px;
  }

  .contact-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .cta-card {
    padding: 55px 20px;
    border-radius: 30px 30px 0 0;
  }

  .cta-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .footer-main,
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-main nav {
    flex-wrap: wrap;
    gap: 15px 22px;
  }

  .back-top {
    right: 15px;
    bottom: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}