:root {
  /* Solo 封面图风格：淡紫蓝极光玻璃拟态（对齐 #7B8CFF） */
  --theme-color: #7b8cff;
  --theme-color-hover: #6a7af0;
  --theme-color-active: #5a69e0;
  --theme-color-rgb: 123, 140, 255;
  --theme-color-soft: rgba(var(--theme-color-rgb), 0.1);
  --theme-color-muted: rgba(var(--theme-color-rgb), 0.16);
  --theme-color-glow: rgba(var(--theme-color-rgb), 0.18);
  --theme-color-ring: rgba(var(--theme-color-rgb), 0.28);
  --theme-color-shadow: rgba(88, 70, 180, 0.18);
  --theme-accent-pink: #ff7eb3;
  --theme-accent-cyan: #6ee7f5;
  --theme-accent-violet: #9b8cff;
  --theme-bg: #f3f0ff;
  --theme-surface: rgba(255, 255, 255, 0.72);

  --font-1: #2a2a4a;
  --font-2: #5c5c7a;
  --font-3: #8a8aa8;
  --fill-1: var(--theme-surface);
  --brand: var(--theme-color);
  --brand-hover: var(--theme-color-hover);
  --inner-width: 1180px;
  --company-name-size: 16px;
  --header-tool-text-size: 16px;
  --brand-title-size: 18px;
  --brand-icon-size: 32px;
  --hero-title-size: 48px;
  --hero-subtitle-size: 16px;
  /* 默认封面 9:16；Solo 页用视口动态尺寸覆盖 */
  --carousel-w: 300px;
  --carousel-h: 552px;
  --carousel-item-w: 300px;
  --carousel-item-h: 533px;
  --carousel-offset: 258px;
  --carousel-side-scale: 0.84;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
  accent-color: var(--theme-color);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  min-width: 320px;
  color: var(--font-1);
  font-family: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  background:
    radial-gradient(ellipse 90% 60% at 50% -8%, rgba(167, 139, 250, 0.35) 0%, transparent 62%),
    radial-gradient(ellipse 55% 42% at 12% 18%, rgba(255, 126, 179, 0.16), transparent 55%),
    radial-gradient(ellipse 50% 38% at 88% 12%, rgba(110, 231, 245, 0.2), transparent 52%),
    radial-gradient(ellipse 70% 50% at 70% 78%, rgba(155, 140, 255, 0.18), transparent 58%),
    linear-gradient(180deg, #ebe6ff 0%, #f5f2ff 42%, #faf8ff 72%, #ffffff 100%);
  background-attachment: fixed;
  position: relative;
  overflow-x: hidden;
}

.atmosphere {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.atmosphere-photo {
  display: none;
}

.atmosphere-veil {
  display: none;
}

.atmosphere-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(48px);
  opacity: 0.55;
  animation: orbFloat 14s ease-in-out infinite;
}

.atmosphere-orb-a {
  width: 340px;
  height: 340px;
  top: 8%;
  left: -6%;
  background: radial-gradient(circle, rgba(255, 126, 179, 0.45), transparent 70%);
}

.atmosphere-orb-b {
  width: 420px;
  height: 420px;
  top: 18%;
  right: -10%;
  background: radial-gradient(circle, rgba(107, 124, 255, 0.4), transparent 70%);
  animation-delay: -4s;
}

.atmosphere-orb-c {
  width: 280px;
  height: 280px;
  bottom: 12%;
  left: 30%;
  background: radial-gradient(circle, rgba(110, 231, 245, 0.35), transparent 70%);
  animation-delay: -8s;
}

.atmosphere-dune {
  position: absolute;
  left: -10%;
  right: -10%;
  bottom: -8%;
  height: 42%;
  background:
    radial-gradient(ellipse 60% 80% at 20% 100%, rgba(186, 170, 255, 0.35), transparent 70%),
    radial-gradient(ellipse 55% 70% at 70% 100%, rgba(200, 180, 255, 0.28), transparent 68%);
}

@keyframes orbFloat {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(18px, -22px, 0) scale(1.06); }
}

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

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

.inner {
  width: min(var(--inner-width), calc(100% - 48px));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.site-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  background: transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header.is-fixed {
  position: fixed;
  background: rgba(255, 252, 255, 0.78);
  border-bottom: 1px solid rgba(107, 124, 255, 0.08);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  box-shadow: 0 8px 28px rgba(88, 70, 180, 0.06);
  animation: fadeIn 0.3s both;
}

.site-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 56px;
}

.header-left {
  display: flex;
  align-items: center;
  min-width: 0;
  flex-shrink: 0;
}

.header-tools .company-name {
  flex-shrink: 0;
  font-size: var(--header-tool-text-size);
  font-weight: 500;
  color: var(--font-1);
  white-space: nowrap;
  transition: color 0.2s;
}

.header-tools .company-name:hover {
  color: var(--theme-color);
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.brand img {
  width: var(--brand-icon-size);
  height: var(--brand-icon-size);
  border-radius: 10px;
  box-shadow: 0 6px 18px var(--theme-color-shadow);
}

.brand span {
  font-size: var(--brand-title-size);
  font-weight: 700;
  color: var(--font-1);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-shrink: 0;
}

.header-tools .header-link {
  font-size: var(--header-tool-text-size);
}

.header-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--font-1);
  font-size: 16px;
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  transition: color 0.2s;
}

.header-link:hover {
  color: var(--theme-color);
}

.share-wrap {
  position: relative;
}

.share-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 132px;
  padding: 6px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(107, 124, 255, 0.12);
  box-shadow: 0 16px 40px rgba(88, 70, 180, 0.14);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 40;
}

.share-panel-item {
  display: block;
  width: 100%;
  padding: 10px 12px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--font-1);
  font-size: 14px;
  text-align: left;
  cursor: pointer;
}

.share-panel-item:hover {
  background: var(--theme-color-soft);
}

.share-toast {
  position: fixed;
  left: 50%;
  bottom: calc(24px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  z-index: 200;
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(42, 42, 74, 0.9);
  color: #fff;
  font-size: 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
}

body.mobile-bar-visible .share-toast {
  bottom: calc(96px + env(safe-area-inset-bottom));
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--font-2);
  transition: color 0.2s;
}

.nav a:hover {
  color: var(--theme-color);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 52px;
  padding: 0 32px;
  border: 0;
  border-radius: 999px;
  background: var(--font-1);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

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

.btn-brand {
  background: linear-gradient(135deg, #8b7cff 0%, #6b7cff 45%, #5ad1ea 120%);
  box-shadow:
    0 12px 28px rgba(107, 124, 255, 0.35),
    0 0 0 1px rgba(255, 255, 255, 0.25) inset;
}

.btn-brand:hover {
  background: linear-gradient(135deg, #7a6af0 0%, #5a6af0 45%, #48c4de 120%);
  box-shadow:
    0 14px 32px rgba(107, 124, 255, 0.42),
    0 0 0 1px rgba(255, 255, 255, 0.3) inset;
}

.btn-brand:active {
  background: var(--theme-color-active);
  transform: none;
}

.hero {
  position: relative;
  padding: 80px 0 48px;
  text-align: center;
  overflow-x: hidden;
  overflow-y: visible;
  z-index: 1;
}

/* Solo：首屏标题 + 下载 + 轮播为一组紧凑居中，间距均匀 */
body[data-app="solo"] {
  --solo-hero-chrome: 250px;
  --carousel-item-h: clamp(280px, calc(100svh - var(--solo-hero-chrome)), 460px);
  --carousel-item-w: calc(var(--carousel-item-h) * 9 / 16);
  --carousel-w: var(--carousel-item-w);
  --carousel-h: calc(var(--carousel-item-h) + 10px);
  --carousel-offset: calc(var(--carousel-item-w) * 0.86);
  --carousel-side-scale: 0.84;
  background:
    linear-gradient(180deg, rgba(236, 232, 255, 0.55) 0%, rgba(255, 255, 255, 0.35) 42%, #ffffff 100%),
    #efeaff;
  background-attachment: scroll;
}

/* App 首页同款淡紫沙丘氛围底图 */
body[data-app="solo"] .atmosphere-photo {
  display: block;
  position: absolute;
  inset: 0;
  z-index: 0;
}

body[data-app="solo"] .atmosphere-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

body[data-app="solo"] .atmosphere-veil {
  display: block;
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(245, 242, 255, 0.28) 0%, rgba(255, 255, 255, 0.18) 38%, rgba(255, 255, 255, 0.78) 72%, #ffffff 100%);
}

body[data-app="solo"] .atmosphere-orb,
body[data-app="solo"] .atmosphere-dune {
  display: none;
}

body[data-app="solo"] .hero {
  box-sizing: border-box;
  min-height: 100svh;
  height: 100svh;
  max-height: 100svh;
  padding: 64px 0 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow-x: hidden;
  overflow-y: hidden;
}

body[data-app="solo"] .hero .inner {
  flex: 0 1 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: 0;
  min-height: 0;
  width: 100%;
}

.hero .inner {
  position: relative;
  z-index: 1;
}

.hero-brand-mark {
  margin: 0 auto 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--theme-color);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(107, 124, 255, 0.18);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 8px 24px rgba(88, 70, 180, 0.08);
}

.hero h1 {
  margin: 0;
  font-size: var(--hero-title-size);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: 0.02em;
  background: linear-gradient(120deg, #4a5de8 0%, #7b6cff 42%, #c56bff 78%, #ff7eb3 110%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

body[data-app="solo"] .hero h1 {
  font-size: clamp(26px, 5.4vw, 40px);
  letter-spacing: 0.02em;
  white-space: nowrap;
  flex: 0 0 auto;
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
  color: #1a1a2e;
}

body[data-app="solo"] .hero .subtitle {
  margin-top: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--font-2);
  flex: 0 0 auto;
}

/* Solo 下载页 Hero：去掉品牌徽标与卖点标签，仅保留标题 / 副标题 / 下载 */
body[data-app="solo"] .hero-brand-mark,
body[data-app="solo"] .hero-pills {
  display: none !important;
}

body[data-app="solo"] .hero-actions {
  margin-top: 18px;
  flex: 0 0 auto;
}

body[data-app="solo"] .carousel-wrap {
  margin-top: 44px;
  margin-bottom: 0;
  padding-top: 0;
  padding-bottom: 0;
  flex: 0 0 auto;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
  touch-action: pan-y;
}

body[data-app="solo"] .carousel-dots {
  margin-top: 14px;
  padding-bottom: 0;
}

body[data-app="solo"] .carousel-wrap:active {
  cursor: grabbing;
}

.fx-reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.hero .inner > .fx-reveal:nth-child(1) { transition-delay: 0.02s; }
.hero .inner > .fx-reveal:nth-child(2) { transition-delay: 0.08s; }
.hero .inner > .fx-reveal:nth-child(3) { transition-delay: 0.14s; }
.hero .inner > .fx-reveal:nth-child(4) { transition-delay: 0.18s; }
.hero .inner > .fx-reveal:nth-child(5) { transition-delay: 0.22s; }
.hero .inner > .fx-reveal:nth-child(6) { transition-delay: 0.28s; }

.hero .subtitle {
  margin: 16px auto 0;
  max-width: 640px;
  color: var(--font-2);
  font-size: var(--hero-subtitle-size);
  line-height: 1.6;
  font-weight: 500;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 22px auto 0;
  padding: 0;
  list-style: none;
  max-width: 720px;
}

.hero-pills li,
.feature-tags li {
  display: inline-flex;
  align-items: center;
  height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: #4a4a6a;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(107, 124, 255, 0.14);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 6px 16px rgba(88, 70, 180, 0.06);
}

.hero-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-top: 28px;
}

.hero-actions .btn-download {
  width: auto;
  min-width: 220px;
  max-width: calc(100vw - 40px);
  height: 52px;
  padding: 0 44px;
  font-size: 16px;
  line-height: 1;
  white-space: nowrap;
}

.btn-download {
  text-align: center;
  white-space: nowrap;
}

.carousel-wrap {
  position: relative;
  width: 100vw;
  max-width: 100vw;
  margin-top: 36px;
  margin-left: calc(50% - 50vw);
  padding-bottom: 12px;
}

.carousel {
  position: relative;
  width: var(--carousel-w);
  height: var(--carousel-h);
  margin: 0 auto;
  list-style: none;
  padding: 0;
  z-index: 1;
  isolation: isolate;
}

.carousel-item {
  position: absolute;
  left: 50%;
  top: 0;
  width: var(--carousel-item-w);
  height: var(--carousel-item-h);
  aspect-ratio: 9 / 16;
  margin-left: calc(var(--carousel-item-w) / -2);
  padding: 0;
  border: 0;
  border-radius: 28px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.55);
  box-shadow:
    0 18px 40px rgba(88, 70, 180, 0.16),
    0 0 0 1px rgba(255, 255, 255, 0.7) inset;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition:
    transform 0.55s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.4s ease,
    visibility 0.4s ease;
  transform-origin: center center;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.carousel-item img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center top;
  border-radius: 28px;
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
  background: #f3f0ff;
}

.carousel-item picture {
  display: block;
  width: 100%;
  height: 100%;
}

.carousel-item.is-center {
  transform: translate3d(0, 0, 0) scale(1);
  opacity: 1;
  visibility: visible;
  z-index: 3;
}

.carousel-item.is-left {
  transform: translate3d(calc(var(--carousel-offset) * -1), 0, 0) scale(var(--carousel-side-scale));
  opacity: 1;
  visibility: visible;
  z-index: 2;
}

.carousel-item.is-right {
  transform: translate3d(var(--carousel-offset), 0, 0) scale(var(--carousel-side-scale));
  opacity: 1;
  visibility: visible;
  z-index: 1;
}

.carousel-item.is-hidden {
  transform: translate3d(0, 0, 0) scale(0.72);
  opacity: 0;
  visibility: hidden;
  z-index: 0;
  pointer-events: none;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 22px;
  padding-bottom: 4px;
  position: relative;
  z-index: 4;
}

.carousel-dots button {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(107, 124, 255, 0.28);
  cursor: pointer;
  transition: width 0.25s ease, background 0.25s ease;
}

.carousel-dots button.is-active {
  width: 24px;
  border-radius: 999px;
  background: linear-gradient(90deg, #8b7cff, #6b7cff);
}

.feature-section {
  position: relative;
  z-index: 1;
  min-height: auto;
  display: flex;
  align-items: center;
  padding: 64px 0;
  content-visibility: auto;
  contain-intrinsic-size: auto 560px;
}

.feature-section-secure {
  background:
    radial-gradient(ellipse 70% 60% at 80% 40%, rgba(90, 70, 180, 0.12), transparent 65%);
}

.feature-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
  padding: 36px;
  border-radius: 32px;
  background: rgba(255, 255, 255, 0.42);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow:
    0 20px 50px rgba(88, 70, 180, 0.08),
    0 0 0 1px rgba(107, 124, 255, 0.04);
  backdrop-filter: blur(18px) saturate(1.15);
  -webkit-backdrop-filter: blur(18px) saturate(1.15);
}

.feature-grid.reverse .feature-copy {
  order: 2;
}

.feature-grid.reverse .feature-phone {
  order: 1;
}

.feature-kicker {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--theme-color);
  text-transform: none;
}

.feature-copy h2 {
  margin: 0;
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1.25;
  font-weight: 800;
  color: var(--font-1);
}

.feature-copy > p {
  margin: 14px 0 0;
  color: var(--font-2);
  font-size: 16px;
  line-height: 1.75;
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  justify-content: flex-start;
  width: 100%;
  box-sizing: border-box;
}

body[data-app="solo"] .feature-copy {
  width: 100%;
  min-width: 0;
  text-align: center;
}

body[data-app="solo"] .feature-copy > p {
  margin-left: auto;
  margin-right: auto;
  max-width: none;
  text-align: center;
}

body[data-app="solo"] .feature-tags {
  justify-content: center;
}

body[data-app="solo"] .feature-tags li {
  flex: 0 0 auto;
  white-space: nowrap;
  height: 30px;
  padding: 0 11px;
  font-size: 12px;
}

.tool-groups {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 22px;
}

.tool-group {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(107, 124, 255, 0.1);
}

.tool-group h3 {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--theme-color);
}

.tool-group p {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--font-2);
}

.feature-phone {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  position: relative;
}

.phone-frame,
.feature-cover {
  width: 240px;
  padding: 6px;
  border-radius: 28px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow:
    0 18px 40px rgba(88, 70, 180, 0.16),
    0 0 40px rgba(107, 124, 255, 0.08);
}

.feature-cover {
  width: min(300px, 74vw);
  padding: 0;
  border-radius: 26px;
  background: transparent;
  border: 0;
  box-shadow:
    0 24px 50px rgba(88, 70, 180, 0.18),
    0 0 0 1px rgba(255, 255, 255, 0.55);
}

.phone-frame picture,
.phone-frame img,
.feature-cover picture,
.feature-cover img {
  width: 100%;
  display: block;
}

.phone-frame img,
.feature-cover img {
  aspect-ratio: 9 / 16;
  object-fit: cover;
  object-position: top;
  border-radius: 22px;
}

.feature-cover img {
  border-radius: 26px;
}

.glass-stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 150px;
}

.glass-stack-inline {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  max-width: none;
  margin-top: 22px;
}

.glass-card {
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(255, 255, 255, 0.75);
  box-shadow: 0 10px 24px rgba(88, 70, 180, 0.1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  text-align: left;
}

.glass-card strong {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--font-1);
}

.glass-card span {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  color: var(--font-2);
  line-height: 1.4;
}

.cta-band {
  position: relative;
  z-index: 1;
  padding: 24px 0 72px;
}

.cta-band-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 32px 36px;
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(139, 124, 255, 0.18), rgba(255, 126, 179, 0.12) 50%, rgba(110, 231, 245, 0.14)),
    rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.75);
  box-shadow: 0 18px 44px rgba(88, 70, 180, 0.1);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.cta-band-inner h2 {
  margin: 0;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
}

.cta-band-inner p {
  margin: 8px 0 0;
  color: var(--font-2);
  font-size: 15px;
  line-height: 1.6;
}

.site-footer {
  position: relative;
  z-index: 5;
  padding: 40px 0 calc(64px + env(safe-area-inset-bottom));
  text-align: center;
  color: var(--font-3);
  font-size: 12px;
  line-height: 1.8;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.85) 30%, rgba(255, 255, 255, 0.96) 100%);
}

.footer-legal {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 12px;
}

.footer-company-name {
  margin-top: 2px;
  color: var(--font-2);
}

.footer-legal a {
  color: var(--font-1);
  font-size: 14px;
  font-weight: 700;
  transition: color 0.2s;
}

.footer-legal a:hover {
  color: var(--theme-color);
}

.footer-legal-divider {
  width: 1px;
  height: 14px;
  background: rgba(107, 124, 255, 0.25);
  flex-shrink: 0;
}

.footer-meta {
  color: rgba(42, 42, 74, 0.55);
  font-size: 12px;
  line-height: 1.85;
}

.footer-meta a {
  color: rgba(42, 42, 74, 0.55);
}

.footer-meta a:hover {
  color: rgba(42, 42, 74, 0.85);
}

.mobile-bar {
  display: none;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .fx-reveal {
    animation: none !important;
    transition: none !important;
    opacity: 1;
    transform: none;
  }

  .carousel-item,
  .atmosphere-orb {
    transition: none !important;
    animation: none !important;
  }
}

@media (max-width: 960px) {
  :root {
    --header-tool-text-size: 15px;
    --brand-title-size: 16px;
    --brand-icon-size: 28px;
    --hero-title-size: 34px;
    --hero-subtitle-size: 14px;
  }

  .inner {
    width: calc(100% - 32px);
  }

  .site-header .inner {
    height: 52px;
  }

  .nav {
    display: none !important;
  }

  .header-tools {
    gap: 16px;
  }

  .hero {
    padding: 64px 0 36px;
  }

  body[data-app="solo"] {
    --solo-hero-chrome: 240px;
    --carousel-item-h: clamp(260px, calc(100svh - var(--solo-hero-chrome)), 420px);
    --carousel-item-w: calc(var(--carousel-item-h) * 9 / 16);
    --carousel-w: var(--carousel-item-w);
    --carousel-h: calc(var(--carousel-item-h) + 10px);
    --carousel-offset: calc(var(--carousel-item-w) * 0.72);
  }

  body[data-app="solo"] .hero {
    padding: 56px 0 24px;
  }

  body[data-app="solo"] .hero .inner {
    padding-top: 0;
  }

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

  .feature-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    text-align: center;
    padding: 24px 20px;
  }

  body[data-app="solo"] .feature-grid {
    text-align: center;
  }

  body[data-app="solo"] .feature-phone {
    justify-content: center;
  }

  .feature-grid.reverse .feature-copy,
  .feature-grid.reverse .feature-phone {
    order: initial;
  }

  .feature-tags,
  .tool-groups {
    grid-template-columns: 1fr;
    justify-content: center;
  }

  .feature-tags {
    justify-content: center;
  }

  body[data-app="solo"] .feature-tags {
    justify-content: center;
    gap: 6px;
  }

  .glass-stack {
    display: none;
  }

  .glass-stack-inline {
    display: grid;
  }

  .feature-section {
    padding: 36px 0;
  }

  .cta-band-inner {
    flex-direction: column;
    text-align: center;
    padding: 28px 22px;
  }

  :root {
    --carousel-w: 246px;
    --carousel-h: 456px;
    --carousel-item-w: 246px;
    --carousel-item-h: 437px;
    --carousel-offset: 168px;
  }

  body[data-app="solo"] {
    --solo-hero-chrome: 230px;
    --carousel-item-h: clamp(260px, calc(100svh - var(--solo-hero-chrome)), 420px);
    --carousel-item-w: calc(var(--carousel-item-h) * 9 / 16);
    --carousel-w: var(--carousel-item-w);
    --carousel-h: calc(var(--carousel-item-h) + 10px);
    --carousel-offset: calc(var(--carousel-item-w) * 0.72);
  }

  .phone-frame,
  .feature-cover {
    width: min(250px, 72vw);
    margin: 0 auto;
  }

  body[data-app="solo"] .feature-tags li {
    height: 30px;
    padding: 0 10px;
    font-size: 12px;
  }
}

@media (max-width: 640px) {
  .hero-actions {
    display: flex;
    margin-top: 24px;
    margin-bottom: 8px;
  }

  .hero-pills {
    gap: 8px;
  }

  .hero-pills li {
    height: 30px;
    padding: 0 12px;
    font-size: 12px;
  }

  .carousel-wrap {
    margin-top: 22px;
    padding-bottom: 12px;
  }

  :root {
    --carousel-w: 198px;
    --carousel-h: 372px;
    --carousel-item-w: 198px;
    --carousel-item-h: 352px;
    --carousel-offset: 128px;
    --carousel-side-scale: 0.82;
  }

  body[data-app="solo"] {
    --solo-hero-chrome: 230px;
    --carousel-item-h: clamp(240px, calc(100svh - var(--solo-hero-chrome)), 380px);
    --carousel-item-w: calc(var(--carousel-item-h) * 9 / 16);
    --carousel-w: var(--carousel-item-w);
    --carousel-h: calc(var(--carousel-item-h) + 8px);
    --carousel-offset: calc(var(--carousel-item-w) * 0.68);
    --carousel-side-scale: 0.8;
  }

  body[data-app="solo"] .hero {
    padding: 52px 0 20px;
  }

  body[data-app="solo"] .hero .inner {
    padding-top: 0;
  }

  body[data-app="solo"] .hero h1 {
    font-size: clamp(24px, 6.4vw, 32px);
  }

  body[data-app="solo"] .hero-actions {
    margin-top: 16px;
  }

  body[data-app="solo"] .carousel-wrap {
    margin-top: 36px;
    padding-top: 0;
    padding-bottom: 0;
  }

  .carousel-item {
    border-radius: 22px;
  }

  .carousel-item img {
    border-radius: 22px;
  }

  .carousel-dots {
    margin-top: 20px;
    padding-bottom: 8px;
  }

  .feature-copy h2 {
    font-size: 24px;
  }

  .feature-copy > p {
    font-size: 15px;
  }

  .phone-frame,
  .feature-cover {
    width: min(240px, 68vw);
  }

  body[data-app="solo"] .feature-cover {
    width: min(270px, 72vw);
  }

  .glass-stack {
    display: none;
  }

  .btn {
    height: 48px;
    padding: 0 24px;
    font-size: 15px;
  }

  .hero-actions .btn-download {
    min-width: 200px;
    padding: 0 36px;
  }

  .site-footer {
    padding-bottom: calc(104px + env(safe-area-inset-bottom));
  }

  .mobile-bar {
    display: flex;
    justify-content: center;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 30;
    padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
    background: linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(250, 248, 255, 0.96) 30%);
    transform: translateY(110%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.28s ease, opacity 0.28s ease;
  }

  .mobile-bar.is-visible {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .mobile-bar .btn-download {
    width: auto;
    min-width: 240px;
    max-width: min(340px, calc(100vw - 40px));
    height: 52px;
    padding: 0 36px;
  }

  body.mobile-bar-visible .site-footer {
    padding-bottom: calc(148px + env(safe-area-inset-bottom));
  }
}

@media (max-width: 390px) {
  .header-tools .company-name {
    max-width: 56px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .brand span {
    max-width: 96px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  :root {
    --carousel-offset: 117px;
  }
}

/* ========== 产品主题：电池医生 ========== */
body.theme-battery {
  --theme-color: #10b981;
  --theme-color-hover: #059669;
  --theme-color-active: #047857;
  --theme-color-rgb: 16, 185, 129;
  --theme-color-soft: rgba(var(--theme-color-rgb), 0.1);
  --theme-color-muted: rgba(var(--theme-color-rgb), 0.16);
  --theme-color-glow: rgba(var(--theme-color-rgb), 0.18);
  --theme-color-ring: rgba(var(--theme-color-rgb), 0.28);
  --theme-color-shadow: rgba(4, 120, 87, 0.18);
  --theme-accent-pink: #34d399;
  --theme-accent-cyan: #6ee7b7;
  --theme-accent-violet: #2dd4bf;
  --theme-bg: #ecfdf5;
  --font-1: #134e3a;
  --font-2: #3f6f5c;
  --font-3: #6b9080;
  background:
    radial-gradient(ellipse 90% 60% at 50% -8%, rgba(16, 185, 129, 0.28) 0%, transparent 62%),
    radial-gradient(ellipse 55% 42% at 12% 18%, rgba(52, 211, 153, 0.14), transparent 55%),
    radial-gradient(ellipse 50% 38% at 88% 12%, rgba(45, 212, 191, 0.16), transparent 52%),
    linear-gradient(180deg, #d1fae5 0%, #ecfdf5 42%, #f0fdf9 72%, #ffffff 100%);
}

/* ========== 产品主题：纳米Wifi ========== */
body.theme-wifi {
  --theme-color: #0084ff;
  --theme-color-hover: #0070d9;
  --theme-color-active: #005bb5;
  --theme-color-rgb: 0, 132, 255;
  --theme-color-soft: rgba(var(--theme-color-rgb), 0.1);
  --theme-color-muted: rgba(var(--theme-color-rgb), 0.16);
  --theme-color-glow: rgba(var(--theme-color-rgb), 0.18);
  --theme-color-ring: rgba(var(--theme-color-rgb), 0.28);
  --theme-color-shadow: rgba(0, 90, 180, 0.18);
  --theme-accent-pink: #4da6ff;
  --theme-accent-cyan: #7dd3fc;
  --theme-accent-violet: #38bdf8;
  --theme-bg: #e8f4ff;
  --font-1: #0f2744;
  --font-2: #3d5a73;
  --font-3: #6b8499;
  background:
    radial-gradient(ellipse 90% 60% at 50% -8%, rgba(0, 132, 255, 0.28) 0%, transparent 62%),
    radial-gradient(ellipse 55% 42% at 12% 18%, rgba(77, 166, 255, 0.16), transparent 55%),
    radial-gradient(ellipse 50% 38% at 88% 12%, rgba(125, 211, 252, 0.18), transparent 52%),
    linear-gradient(180deg, #dbeafe 0%, #e8f4ff 42%, #f0f7ff 72%, #ffffff 100%);
}

/* 无截图时的产品展示卡 */
.hero-showcase {
  margin: 36px auto 0;
  max-width: 520px;
  padding: 28px 24px 24px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(var(--theme-color-rgb), 0.14);
  box-shadow: 0 24px 60px var(--theme-color-shadow);
  backdrop-filter: blur(16px);
}

.hero-showcase-logo {
  width: 88px;
  height: 88px;
  margin: 0 auto 16px;
  border-radius: 22px;
  display: block;
  object-fit: cover;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
}

.hero-showcase-title {
  margin: 0 0 8px;
  text-align: center;
  font-size: 20px;
  font-weight: 700;
}

.hero-showcase-desc {
  margin: 0 0 18px;
  text-align: center;
  color: var(--font-2);
  font-size: 14px;
  line-height: 1.6;
}

.showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.showcase-chip {
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--theme-color-soft);
  color: var(--font-1);
  font-size: 13px;
  font-weight: 600;
  text-align: center;
}

.feature-visual-card {
  width: min(100%, 360px);
  margin: 0 auto;
  padding: 28px 22px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(var(--theme-color-rgb), 0.12);
  box-shadow: 0 18px 40px var(--theme-color-shadow);
}

.feature-visual-card .visual-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 14px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, var(--theme-color), var(--theme-accent-cyan));
  color: #fff;
  font-size: 28px;
  font-weight: 700;
}

.feature-visual-card h3 {
  margin: 0 0 8px;
  text-align: center;
  font-size: 18px;
}

.feature-visual-card p {
  margin: 0;
  text-align: center;
  color: var(--font-2);
  font-size: 14px;
  line-height: 1.65;
}

.feature-visual-list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.feature-visual-list li {
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--theme-color-soft);
  font-size: 13px;
  color: var(--font-1);
}

@media (max-width: 720px) {
  .hero-showcase {
    margin-top: 28px;
    padding: 22px 16px;
  }

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