/* === CSS 变量（设计令牌） === */
:root {
  /* Primary — 淡紫色调 */
  --color-primary: #7C3AED;
  --color-primary-hover: #6D28D9;
  --color-primary-active: #5B21B6;
  --color-primary-subtle: rgba(124, 58, 237, 0.08);

  /* Secondary */
  --color-secondary: #6366F1;
  --color-secondary-hover: #4F46E5;
  --color-secondary-subtle: rgba(99, 102, 241, 0.08);

  /* Gradients — 淡色适配 */
  --gradient-primary: linear-gradient(135deg, #7C3AED 0%, #6366F1 100%);
  --gradient-primary-hover: linear-gradient(135deg, #6D28D9 0%, #4F46E5 100%);
  --gradient-hero-glow: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(124, 58, 237, 0.08) 0%, transparent 70%);
  --gradient-card-glow: radial-gradient(ellipse 60% 40% at 50% 100%, rgba(99, 102, 241, 0.06) 0%, transparent 70%);
  --gradient-section-fade: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-secondary) 100%);
  --gradient-text: linear-gradient(135deg, #7C3AED 0%, #6366F1 50%, #818CF8 100%);
  --gradient-blob-1: radial-gradient(circle at 30% 40%, rgba(124, 58, 237, 0.04) 0%, transparent 50%);
  --gradient-blob-2: radial-gradient(circle at 70% 60%, rgba(99, 102, 241, 0.03) 0%, transparent 50%);

  /* Backgrounds — 淡色系 */
  --color-bg: #FAFAFE;
  --color-bg-secondary: #F3F1F9;
  --color-bg-tertiary: #EBE8F4;
  --color-surface: rgba(124, 58, 237, 0.03);
  --color-surface-hover: rgba(124, 58, 237, 0.06);

  /* Text — 深色文字 */
  --color-text-primary: #1E1B3A;
  --color-text-secondary: #5B577A;
  --color-text-tertiary: #8E8AA5;

  /* Borders — 淡色边框 */
  --color-border: rgba(124, 58, 237, 0.10);
  --color-border-hover: rgba(124, 58, 237, 0.20);
  --color-border-focus: rgba(124, 58, 237, 0.50);
  --color-border-primary: rgba(124, 58, 237, 0.25);

  /* Semantic */
  --color-success: #10B981;
  --color-success-subtle: rgba(16, 185, 129, 0.10);
  --color-warning: #F59E0B;
  --color-danger: #EF4444;
  --color-info: #3B82F6;

  /* Streamer Category */
  --color-streamer-entertainment: #A855F7;
  --color-streamer-ecommerce: #F59E0B;
  --color-streamer-brand: #3B82F6;

  /* Typography */
  --font-heading: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  --space-32: 128px;

  /* Elevation */
  --z-base: 0;
  --z-card: 10;
  --z-sticky: 100;
  --z-nav: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;

  /* Motion */
  --ease-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;
  --duration-slower: 800ms;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;
}

/* === Reset & Base === */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

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

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

/* === Utility === */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

.text-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

/* === 滚动渐入动效 === */
.js-enhanced .reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.js-enhanced .reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 {
  transition-delay: 0.1s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

.reveal-delay-3 {
  transition-delay: 0.3s;
}

.reveal-delay-4 {
  transition-delay: 0.4s;
}

.reveal-delay-5 {
  transition-delay: 0.5s;
}

.reveal-delay-6 {
  transition-delay: 0.6s;
}

/* ============================================================
   区块①：Navigation Bar
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  height: 72px;
  display: flex;
  align-items: center;
  padding: 0 32px;
  background: transparent;
  transition: background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.navbar--scrolled {
  background: rgba(250, 250, 254, 0.90);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.navbar__inner {
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 800;
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-logo__icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-logo__icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  margin-right: 40px;
}

.nav-link {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.2s ease;
  text-decoration: none;
}

.nav-link:hover {
  color: var(--color-text-primary);
}

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

/* 下载客户端下拉 */
.nav-dropdown {
  position: relative;
  display: inline-flex;
}

.nav-dropdown__trigger {
  background: var(--gradient-primary);
  color: #FFFFFF;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 20px rgba(124, 58, 237, 0.20), 0 4px 12px rgba(0, 0, 0, 0.08);
}

.nav-dropdown__trigger:hover {
  background: var(--gradient-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 0 32px rgba(124, 58, 237, 0.30), 0 6px 16px rgba(0, 0, 0, 0.10);
}

.nav-dropdown__trigger svg {
  width: 14px;
  height: 14px;
  transition: transform 0.3s ease;
}

.nav-dropdown--open .nav-dropdown__trigger svg {
  transform: rotate(180deg);
}

.nav-dropdown__menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: 0 16px 48px rgba(124, 58, 237, 0.10), 0 4px 16px rgba(0, 0, 0, 0.06);
  padding: 6px;
  /* 重置浏览器对 <ul> 的默认样式（项目语义化规范要求使用 ul/li） */
  list-style: none;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: var(--z-overlay);
}

.nav-dropdown--open .nav-dropdown__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-primary);
  text-decoration: none;
  transition: background 0.2s ease;
  cursor: pointer;
}

.nav-dropdown__item:hover {
  background: var(--color-primary-subtle);
}

.nav-dropdown__item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-primary);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-ghost:hover {
  color: var(--color-text-primary);
  background: rgba(124, 58, 237, 0.06);
}

.btn-primary {
  background: var(--gradient-primary);
  color: #FFFFFF;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 20px rgba(124, 58, 237, 0.20), 0 4px 12px rgba(0, 0, 0, 0.08);
}

.btn-primary:hover {
  background: var(--gradient-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 0 32px rgba(124, 58, 237, 0.30), 0 6px 16px rgba(0, 0, 0, 0.10);
}

.btn-primary:focus-visible,
.btn-ghost:focus-visible,
.btn-secondary:focus-visible,
.btn-download:focus-visible {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 2px;
}

/* 汉堡菜单按钮 */
.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--color-text-primary);
  margin-left: auto;
}

.nav-hamburger svg {
  width: 24px;
  height: 24px;
}

/* 移动端菜单 */
.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(250, 250, 254, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: var(--z-overlay);
  padding: 24px 20px;
  flex-direction: column;
  gap: 8px;
}

.mobile-menu--open {
  display: flex;
}

.mobile-menu .nav-link {
  display: block;
  font-size: 18px;
  padding: 16px;
  border-radius: 12px;
}

.mobile-menu .nav-actions {
  margin-top: 24px;
  flex-direction: column;
  gap: 12px;
}

.mobile-menu .btn-primary,
.mobile-menu .btn-ghost {
  width: 100%;
  text-align: center;
  padding: 14px 24px;
  font-size: 16px;
}

/* ============================================================
   区块②：Hero Section
   ============================================================ */
.hero {
  position: relative;
  padding: 128px 0 96px;
  text-align: center;
  overflow: hidden;
  background: var(--gradient-hero-glow);
}

/* 装饰光斑 */
.hero__orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.hero__orb--1 {
  width: 600px;
  height: 600px;
  top: -200px;
  left: -150px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.06) 0%, transparent 70%);
  animation: glow-pulse 6s ease-in-out infinite;
}

.hero__orb--2 {
  width: 500px;
  height: 500px;
  top: -100px;
  right: -100px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.05) 0%, transparent 70%);
  animation: glow-pulse 8s ease-in-out infinite 2s;
}

@keyframes glow-pulse {

  0%,
  100% {
    opacity: 0.6;
    transform: scale(1);
  }

  50% {
    opacity: 1;
    transform: scale(1.05);
  }
}

/* 弹幕装饰 */
.hero__danmaku {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  pointer-events: none;
}

.danmaku-item {
  position: absolute;
  font-size: 14px;
  font-weight: 500;
  color: rgba(124, 58, 237, 0.12);
  white-space: nowrap;
  pointer-events: none;
  animation: danmaku-scroll linear infinite;
}

@keyframes danmaku-scroll {
  0% {
    transform: translateX(100vw);
  }

  100% {
    transform: translateX(-100%);
  }
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px 6px 8px;
  border-radius: var(--radius-full);
  background: var(--color-primary-subtle);
  border: 1px solid rgba(124, 58, 237, 0.15);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: 32px;
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  animation: dot-pulse 2s ease-in-out infinite;
}

@keyframes dot-pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.4;
  }
}

.hero__title {
  font-family: var(--font-heading);
  font-size: 72px;
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero__subtitle {
  font-size: 18px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: 0 auto 40px;
}

.hero__ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 56px;
  flex-wrap: wrap;
  /* 修复：reveal 动效给 .hero__ctas / .hero__stats 都加了 transform，
     会创建独立层叠上下文。后者在文档顺序更靠后，会盖住前者，
     导致 hero 区下拉菜单中的 iOS / Android 链接被 .hero__stats 遮挡而无法点击。
     显式抬高 .hero__ctas 的层级，让下拉菜单浮在 .hero__stats 之上。 */
  position: relative;
  z-index: 2;
}

.btn-download {
  background: var(--gradient-primary);
  color: #FFFFFF;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 14px;
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-download svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.btn-download::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.25) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.btn-download:hover::before {
  opacity: 1;
}

.btn-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(124, 58, 237, 0.30), 0 8px 20px rgba(0, 0, 0, 0.10);
}

/* === Hero 区移动端下载下拉菜单 === */
.hero-mobile-dropdown {
  position: relative;
  display: inline-flex;
}

.hero-mobile-dropdown__trigger {
  gap: 8px;
}

.hero-mobile-dropdown__trigger svg:first-child {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.hero-mobile-dropdown__trigger svg:last-child {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.hero-mobile-dropdown.nav-dropdown--open .hero-mobile-dropdown__trigger svg:last-child {
  transform: rotate(180deg);
}

.hero-mobile-dropdown .nav-dropdown__menu {
  right: 50%;
  transform: translate(50%, -8px) scaleY(0.96);
  max-width: calc(100vw - 40px);
  opacity: 1;
  visibility: hidden;
  transition: visibility 0s 0.25s, transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-mobile-dropdown.nav-dropdown--open .nav-dropdown__menu {
  transform: translate(50%, 0) scaleY(1);
  visibility: visible;
  transition: visibility 0s, transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* hover 触发展开（仅在具备 hover 能力的设备上生效，避免触屏设备默认底开） */
@media (hover: hover) {
  .hero-mobile-dropdown:hover .nav-dropdown__menu {
    transform: translate(50%, 0) scaleY(1);
    visibility: visible;
    transition: visibility 0s, transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .hero-mobile-dropdown:hover .hero-mobile-dropdown__trigger svg:last-child {
    transform: rotate(180deg);
  }
}

/* 桥接 trigger 与 menu 之间 8px 间隙，避免鼠标穿越时 hover 中断导致菜单闪烁收起 */
.hero-mobile-dropdown .nav-dropdown__menu::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 0;
  right: 0;
  height: 8px;
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  padding: 16px 32px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-secondary:hover {
  border-color: var(--color-border-hover);
  background: rgba(124, 58, 237, 0.04);
}

.hero__stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  font-size: 14px;
  color: var(--color-text-tertiary);
}

.hero__stat {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero__stat-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 16px;
  color: var(--color-text-secondary);
}

.hero__stat-divider {
  width: 1px;
  height: 16px;
  background: var(--color-border);
}

/* ============================================================
   区块②.5：视频介绍
   ============================================================ */
.video-section {
  padding: 96px 0 80px;
  position: relative;
}

.video-section__header {
  text-align: center;
  margin-bottom: 48px;
}

.video-section__header .section-label {
  margin-bottom: 12px;
}

.video-section__header .section-title {
  margin-bottom: 12px;
}

.video-section__header .section-desc {
  max-width: 560px;
  margin: 0 auto;
}

.video-wrapper {
  position: relative;
  max-width: 896px;
  margin: 0 auto;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  aspect-ratio: 16 / 9;
  box-shadow:
    0 0 0 1px rgba(124, 58, 237, 0.06),
    0 24px 48px rgba(0, 0, 0, 0.08),
    0 0 60px rgba(124, 58, 237, 0.06);
  transition: box-shadow 0.5s ease;
}

.video-wrapper:hover {
  box-shadow:
    0 0 0 1px rgba(124, 58, 237, 0.10),
    0 32px 64px rgba(0, 0, 0, 0.10),
    0 0 80px rgba(124, 58, 237, 0.10);
}

.video-wrapper__poster {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.video-wrapper__play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.3s ease;
}

.video-wrapper__play:hover {
  background: rgba(124, 58, 237, 0.08);
}

.video-wrapper__play:hover .play-btn {
  transform: scale(1.08);
  box-shadow: 0 0 40px rgba(124, 58, 237, 0.5);
}

.play-btn {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 30px rgba(124, 58, 237, 0.35);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.play-btn svg {
  margin-left: 3px;
}

.video-wrapper__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(250, 250, 254, 0.6) 100%);
  pointer-events: none;
}

.video-features {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.video-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 500;
}

.video-feature__icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--color-primary-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

/* ============================================================
   区块③：信任滚动带
   ============================================================ */
.trust-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
  overflow: hidden;
}

.trust-section__label {
  text-align: center;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-tertiary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.trust-bar {
  display: flex;
  align-items: center;
  /* justify-content: center; */
  max-width: 1020px;
  margin-inline: auto;
  overflow: hidden;
  mask-image: linear-gradient(90deg,
      transparent 0%,
      rgba(0, 0, 0, 0.15) 4%,
      rgba(0, 0, 0, 0.5) 8%,
      rgba(0, 0, 0, 0.85) 13%,
      #000 18%,
      #000 82%,
      rgba(0, 0, 0, 0.85) 87%,
      rgba(0, 0, 0, 0.5) 92%,
      rgba(0, 0, 0, 0.15) 96%,
      transparent 100%);
  -webkit-mask-image: linear-gradient(90deg,
      transparent 0%,
      rgba(0, 0, 0, 0.15) 4%,
      rgba(0, 0, 0, 0.5) 8%,
      rgba(0, 0, 0, 0.85) 13%,
      #000 18%,
      #000 82%,
      rgba(0, 0, 0, 0.85) 87%,
      rgba(0, 0, 0, 0.5) 92%,
      rgba(0, 0, 0, 0.15) 96%,
      transparent 100%);
}

.trust-bar--reverse {
  margin-top: 8px;
}

.trust-bar__track {
  --trust-duration: 45s;
  display: flex;
  gap: 72px;
  width: max-content;
  align-items: center;
  flex-shrink: 0;
  animation: trust-marquee var(--trust-duration) linear infinite;
  will-change: transform;
  backface-visibility: hidden;
}

.trust-bar__track:hover {
  animation-play-state: paused;
}

.trust-bar__track--reverse {
  --trust-duration: 55s;
  animation-name: trust-marquee-reverse;
}

.trust-bar__group {
  display: flex;
  gap: 72px;
  align-items: center;
  flex-shrink: 0;
}

@keyframes trust-marquee {
  from {
    transform: translate3d(0, 0, 0);
  }

  to {
    transform: translate3d(calc(-50% - 36px), 0, 0);
  }
}

@keyframes trust-marquee-reverse {
  from {
    transform: translate3d(calc(-50% - 36px), 0, 0);
  }

  to {
    transform: translate3d(0, 0, 0);
  }
}

.trust-bar__item {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  flex-shrink: 0;
  opacity: 0.55;
  transition: opacity 0.3s ease;
}

.trust-bar__item:hover {
  opacity: 1;
}

.trust-bar__item--featured {
  opacity: 0.85;
}

.trust-bar__item--featured:hover {
  opacity: 1;
}

.trust-bar__icon {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.trust-bar__icon svg,
.trust-bar__icon img {
  width: 20px;
  height: 20px;
  object-fit: contain;
  border-radius: 3px;
}

.trust-bar__icon--douyin {
  background: rgba(0, 0, 0, 0.06);
}

.trust-bar__icon--douyin svg {
  color: #000000;
}

.trust-bar__icon--shipinhao {
  background: rgba(7, 193, 96, 0.08);
}

.trust-bar__icon--shipinhao svg {
  color: #07C160;
}

.trust-bar__icon--xiaohongshu {
  background: rgba(255, 44, 68, 0.08);
}

.trust-bar__icon--kuaishou {
  background: rgba(255, 130, 0, 0.08);
}

.trust-bar__icon--kuaishou svg {
  color: #FF8200;
}

.trust-bar__icon--bilibili {
  background: rgba(0, 161, 214, 0.08);
}

.trust-bar__icon--bilibili svg {
  color: #00A1D6;
}

.trust-bar__icon--taobao {
  background: rgba(255, 106, 0, 0.08);
}

.trust-bar__icon--taobao svg {
  color: #FF6A00;
}

.trust-bar__icon--youtube {
  background: rgba(255, 0, 0, 0.06);
}

.trust-bar__icon--youtube svg {
  color: #FF0000;
}

.trust-bar__icon--youtube svg path:first-child {
  fill: #FF0000;
}

.trust-bar__icon--youtube svg path:last-child {
  fill: white;
}

.trust-bar__icon--twitch {
  background: rgba(145, 70, 255, 0.06);
}

.trust-bar__icon--twitch svg {
  color: #9146FF;
}

.trust-bar__icon--tiktok {
  background: rgba(0, 0, 0, 0.05);
}

.trust-bar__icon--tiktok svg {
  color: #000000;
}

.trust-bar__icon--pdd {
  background: rgba(234, 32, 51, 0.06);
}

.trust-bar__icon--jd {
  background: rgba(225, 58, 42, 0.06);
}

.trust-bar__icon--jd svg {
  color: #E1251B;
}

.trust-bar__name {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-tertiary);
}

.trust-bar__item--featured .trust-bar__name {
  color: var(--color-text-secondary);
  font-size: 17px;
}

/* ============================================================
   区块④：核心功能区（6宫格）
   ============================================================ */
.features-section {
  padding: 96px 0;
  background: var(--color-bg);
  position: relative;
}

.features-section__bg {
  position: absolute;
  inset: 0;
  background: var(--gradient-blob-1);
  pointer-events: none;
}

.features-section__header {
  text-align: center;
  margin-bottom: 64px;
  position: relative;
}

.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 40px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ---- 6大核心能力：左右交替大图布局 ---- */
.features-grid {
  display: flex;
  flex-direction: column;
  gap: 80px;
  position: relative;
}

.card-glass {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 24px;
  overflow: hidden;
  transition: box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.4s;
  position: relative;
}

.card-glass::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(124, 58, 237, 0.10), transparent);
  z-index: 1;
}

.card-glass:hover {
  border-color: var(--color-border-hover);
  box-shadow: 0 24px 60px rgba(124, 58, 237, 0.08), 0 4px 20px rgba(0, 0, 0, 0.04);
}

/* 奇数卡片：文字左，图片右 */
.card-glass:nth-child(odd) .card-glass__content {
  order: 1;
}

.card-glass:nth-child(odd) .card-glass__image-wrapper {
  order: 2;
}

/* 偶数卡片：图片左，文字右 */
.card-glass:nth-child(even) .card-glass__image-wrapper {
  order: 1;
}

.card-glass:nth-child(even) .card-glass__content {
  order: 2;
}

.card-glass__content {
  padding: 56px 52px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.card-glass__icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.card-glass__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-subtle);
  border-radius: 100px;
  padding: 4px 12px;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  width: fit-content;
}

.card-glass__title {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  color: var(--color-text-primary);
}

.card-glass__desc {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.card-glass__image-wrapper {
  height: 100%;
  min-height: 360px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.04) 0%, rgba(139, 92, 246, 0.06) 100%);
  position: relative;
}

.card-glass__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-glass:hover .card-glass__image {
  transform: scale(1.04);
}

/* ============================================================
   区块⑤：场景化叙事（三步流程）
   ============================================================ */
.steps-section {
  padding: 96px 0;
  background: var(--gradient-section-fade);
  position: relative;
}

.steps-section__bg {
  position: absolute;
  inset: 0;
  background: var(--gradient-blob-2);
  pointer-events: none;
}

.steps-section__header {
  text-align: center;
  margin-bottom: 64px;
  position: relative;
}

.steps-flow {
  display: flex;
  align-items: flex-start;
  gap: 0;
  position: relative;
  justify-content: center;
}

.step-item {
  flex: 1;
  max-width: 360px;
  text-align: center;
  position: relative;
  padding: 0 24px;
}

.step-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--color-primary-subtle);
  border: 1px solid rgba(124, 58, 237, 0.15);
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 auto 24px;
}

.step-item__title {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
}

.step-item__desc {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

.step-connector {
  position: absolute;
  top: 28px;
  right: -40px;
  width: 80px;
  height: 2px;
  background: linear-gradient(90deg, rgba(124, 58, 237, 0.15), rgba(99, 102, 241, 0.15));
}

.step-connector::after {
  content: '';
  position: absolute;
  right: -4px;
  top: -3px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-secondary);
}

/* ============================================================
   区块⑥：三类主播场景
   ============================================================ */
.streamers-section {
  padding: 96px 0;
  background: var(--color-bg);
  position: relative;
}

.streamers-section__header {
  text-align: center;
  margin-bottom: 64px;
}

.streamers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card-streamer {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 40px;
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-streamer:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(124, 58, 237, 0.06), 0 4px 12px rgba(0, 0, 0, 0.04);
}

.card-streamer::before {
  content: '';
  position: absolute;
  left: 0;
  top: 20%;
  bottom: 20%;
  width: 3px;
  border-radius: 3px;
}

.card-streamer--entertainment::before {
  background: var(--color-streamer-entertainment);
}

.card-streamer--ecommerce::before {
  background: var(--color-streamer-ecommerce);
}

.card-streamer--brand::before {
  background: var(--color-streamer-brand);
}

.card-streamer__icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 26px;
}

.card-streamer--entertainment .card-streamer__icon {
  background: rgba(168, 85, 247, 0.08);
}

.card-streamer--ecommerce .card-streamer__icon {
  background: rgba(245, 158, 11, 0.08);
}

.card-streamer--brand .card-streamer__icon {
  background: rgba(59, 130, 246, 0.08);
}

.card-streamer__type {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.card-streamer--entertainment .card-streamer__type {
  color: var(--color-streamer-entertainment);
}

.card-streamer--ecommerce .card-streamer__type {
  color: var(--color-streamer-ecommerce);
}

.card-streamer--brand .card-streamer__type {
  color: var(--color-streamer-brand);
}

.card-streamer__title {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
}

.card-streamer__desc {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.card-streamer__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card-streamer__feature {
  font-size: 14px;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-streamer__feature-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.card-streamer--entertainment .card-streamer__feature-icon {
  background: rgba(168, 85, 247, 0.08);
  color: var(--color-streamer-entertainment);
}

.card-streamer--ecommerce .card-streamer__feature-icon {
  background: rgba(245, 158, 11, 0.08);
  color: var(--color-streamer-ecommerce);
}

.card-streamer--brand .card-streamer__feature-icon {
  background: rgba(59, 130, 246, 0.08);
  color: var(--color-streamer-brand);
}

.card-streamer__feature-icon svg {
  width: 12px;
  height: 12px;
}

/* ============================================================
   区块⑦：社交证明
   ============================================================ */
.proof-section {
  padding: 96px 0;
  background: var(--gradient-section-fade);
  position: relative;
}

.proof-section__bg {
  position: absolute;
  inset: 0;
  background: var(--gradient-blob-1);
  pointer-events: none;
}

.proof-content {
  position: relative;
}

.proof-header {
  text-align: center;
  margin-bottom: 64px;
}

.proof-testimonials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.card-testimonial {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 32px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: all 0.3s ease;
  position: relative;
}

.card-testimonial:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
}

.card-testimonial__quote {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  font-style: italic;
}

.card-testimonial__author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.card-testimonial__avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
}

.card-testimonial__name {
  font-size: 14px;
  font-weight: 600;
}

.card-testimonial__role {
  font-size: 12px;
  color: var(--color-text-tertiary);
}

/* 数据展示 */
.proof-stats {
  display: flex;
  justify-content: center;
  gap: 80px;
}

.proof-stat {
  text-align: center;
}

.proof-stat__value {
  font-family: var(--font-mono);
  font-size: 48px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.proof-stat__label {
  font-size: 14px;
  color: var(--color-text-tertiary);
}

/* ============================================================
   区块⑧：底部CTA + Footer
   ============================================================ */
.cta-section {
  padding: 96px 0 64px;
  text-align: center;
  position: relative;
  background: var(--color-bg);
}

.cta-section__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.cta-section__orb {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(124, 58, 237, 0.08) 0%, transparent 70%);
}

.cta-section__content {
  position: relative;
}

.cta-section__title {
  font-family: var(--font-heading);
  font-size: 40px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.cta-section__desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-bottom: 40px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.cta-section__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

/* CTA区下载下拉 */
.cta-dropdown {
  position: relative;
  display: inline-flex;
}

.cta-dropdown__trigger {
  padding: 16px 36px;
  font-size: 16px;
  border-radius: 14px;
  gap: 10px;
}

.cta-dropdown__trigger svg:first-child {
  width: 20px;
  height: 20px;
}

.cta-dropdown__trigger svg:last-child {
  width: 16px;
  height: 16px;
}

.cta-dropdown .nav-dropdown__menu {
  right: 50%;
  transform: translate(50%, -8px);
  max-width: calc(100vw - 40px);
}

.cta-dropdown.nav-dropdown--open .nav-dropdown__menu {
  transform: translate(50%, 0);
}

/* Footer */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 48px 0;
  background: var(--color-bg);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.footer__brand {
  max-width: 280px;
}

.footer__logo {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.footer__logo-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.footer__logo-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.footer__desc {
  font-size: 14px;
  color: var(--color-text-tertiary);
  line-height: 1.6;
}

.footer__columns {
  display: flex;
  gap: 64px;
}

.footer__column-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__link {
  font-size: 14px;
  color: var(--color-text-tertiary);
  transition: color 0.2s ease;
}

.footer__link:hover {
  color: var(--color-text-primary);
}

.footer__contact-wrapper {
  position: relative;
  display: inline-block;
}

.footer__contact-qr {
  width: 170px;
  height: 170px;
  display: none;
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding-bottom: 8px;
  z-index: 10;
  background-color: #f0f0f0;
  border-radius: 8px;
  padding: 10px;
}

.footer__contact-qr img {
  width: 150px;
  height: 150px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.footer__contact-wrapper:hover .footer__contact-qr {
  display: block;
}

.footer__wechat-wrapper {
  position: relative;
  display: inline-block;
}

.footer__wechat-qr {
  display: none;
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  width: 170px;
  height: 170px;
  padding: 10px;
  background-color: #f0f0f0;
  border-radius: 8px;
  z-index: 10;
}

.footer__wechat-qr img {
  width: 150px;
  height: 150px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.footer__wechat-wrapper:hover .footer__wechat-qr {
  display: block;
}

.footer__bottom {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__copyright {
  font-size: 13px;
  color: var(--color-text-tertiary);
}

.footer__socials {
  display: flex;
  gap: 16px;
}

.footer__social {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-tertiary);
  transition: all 0.2s ease;
  background: rgba(124, 58, 237, 0.05);
}

.footer__social:hover {
  color: var(--color-text-primary);
  background: rgba(124, 58, 237, 0.10);
}

.footer__social svg {
  width: 18px;
  height: 18px;
}

/* ============================================================
   响应式：Tablet（640-1024px）
   ============================================================ */
@media (max-width: 1024px) {
  .hero__title {
    font-size: 48px;
  }

  .features-grid {
    gap: 48px;
  }

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

  .card-glass:nth-child(odd) .card-glass__content,
  .card-glass:nth-child(odd) .card-glass__image-wrapper,
  .card-glass:nth-child(even) .card-glass__image-wrapper,
  .card-glass:nth-child(even) .card-glass__content {
    order: unset;
  }

  .card-glass__image-wrapper {
    order: 1 !important;
    min-height: 260px;
  }

  .card-glass__content {
    order: 2 !important;
  }

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

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

  .proof-stats {
    gap: 48px;
  }

  .proof-stat__value {
    font-size: 36px;
  }

  .section-title {
    font-size: 32px;
  }

  .cta-section__title {
    font-size: 32px;
  }

  .video-features {
    gap: 32px;
  }
}

/* ============================================================
   响应式：Mobile（< 640px）
   ============================================================ */
@media (max-width: 640px) {
  .container {
    padding: 0 20px;
  }

  .navbar {
    height: 64px;
    padding: 0 20px;
  }

  .nav-links {
    display: none;
  }

  .nav-actions {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  /* Hero */
  .hero {
    padding: 100px 0 64px;
  }

  .hero__title {
    font-size: 36px;
  }

  .hero__subtitle {
    font-size: 16px;
  }

  .hero__ctas {
    flex-direction: column;
    gap: 10px;
  }

  .btn-download {
    width: 100%;
    max-width: 320px;
    padding: 14px 20px;
    font-size: 15px;
    justify-content: center;
  }

  /* 移动端下拉菜单适配 */
  .hero-mobile-dropdown {
    width: 100%;
    max-width: 320px;
    display: flex;
    justify-content: center;
  }

  .hero-mobile-dropdown__trigger {
    width: 100%;
    justify-content: center;
  }

  .btn-secondary {
    width: 100%;
    max-width: 400px;
    justify-content: center;
  }

  .hero__stats {
    flex-direction: column;
    gap: 12px;
  }

  .hero__stat-divider {
    display: none;
  }

  .hero__orb--1,
  .hero__orb--2 {
    display: none;
  }

  .danmaku-item {
    display: none;
  }

  /* 信任带 */
  .trust-section {
    padding: 32px 0;
  }

  .trust-bar__track {
    gap: 72px;
  }

  .trust-bar__group {
    gap: 48px;
  }

  .trust-bar__icon {
    width: 24px;
    height: 24px;
  }

  .trust-bar__icon svg {
    width: 14px;
    height: 14px;
  }

  .trust-bar__name {
    font-size: 14px;
  }

  /* 功能区 */
  .features-section {
    padding: 64px 0;
  }

  .features-grid {
    gap: 32px;
  }

  .card-glass {
    grid-template-columns: 1fr;
    border-radius: 16px;
  }

  .card-glass__content {
    padding: 32px 28px;
  }

  .card-glass__image-wrapper {
    min-height: 220px;
  }

  /* 视频区块 */
  .video-section {
    padding: 64px 0 48px;
  }

  .video-section__header {
    margin-bottom: 32px;
  }

  .video-wrapper {
    border-radius: 14px;
  }

  .play-btn {
    width: 56px;
    height: 56px;
  }

  .video-features {
    gap: 20px;
    flex-direction: column;
    align-items: center;
  }

  /* 三步流程 */
  .steps-section {
    padding: 64px 0;
  }

  .steps-flow {
    flex-direction: column;
    align-items: center;
    gap: 40px;
  }

  .step-connector {
    display: none;
  }

  .step-item {
    max-width: 100%;
  }

  /* 主播场景 */
  .streamers-section {
    padding: 64px 0;
  }

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

  .card-streamer {
    padding: 28px;
    border-radius: 12px;
  }

  /* 社交证明 */
  .proof-section {
    padding: 64px 0;
  }

  .proof-testimonials {
    grid-template-columns: 1fr;
  }

  .proof-stats {
    flex-direction: column;
    gap: 32px;
  }

  .proof-stat__value {
    font-size: 32px;
  }

  /* CTA */
  .cta-section {
    padding: 64px 0 48px;
  }

  .cta-section__title {
    font-size: 28px;
  }

  .cta-section__actions {
    flex-direction: column;
    gap: 12px;
  }

  .cta-dropdown {
    width: 100%;
    max-width: 320px;
    display: flex;
    justify-content: center;
  }

  .cta-dropdown__trigger {
    width: 100%;
    justify-content: center;
    padding: 14px 20px;
    font-size: 15px;
    white-space: nowrap;
  }

  .cta-section__actions .btn-secondary {
    max-width: 320px;
    padding: 14px 20px;
    font-size: 15px;
    border-radius: 14px;
  }

  /* Footer */
  .footer__inner {
    flex-direction: column;
    gap: 32px;
  }

  .footer__columns {
    gap: 32px;
    flex-wrap: wrap;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

/* === 无障碍：减少动效偏好降级 === */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }

  .danmaku-item {
    animation: none !important;
    display: none;
  }

  .hero__orb {
    animation: none !important;
  }

  .trust-bar__track {
    animation: none !important;
  }

  .btn-primary:hover,
  .btn-secondary:hover,
  .btn-download:hover,
  .card-glass:hover {
    transform: none !important;
  }

  .card-streamer:hover,
  .card-testimonial:hover,
  .nav-dropdown__trigger:hover {
    transform: none !important;
  }

  .card-glass:hover .card-glass__image {
    transform: none !important;
  }

  .video-wrapper__play:hover .play-btn {
    transform: none !important;
  }

  html {
    scroll-behavior: auto !important;
  }

  [class*="pulse"] {
    animation: none !important;
  }
}

/* === 二维码下载弹窗 === */
.qr-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(15, 12, 41, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity 0.25s ease;
  padding: 20px;
}

.qr-modal--open {
  display: flex;
  opacity: 1;
}

.qr-modal__card {
  position: relative;
  width: min(360px, 100%);
  background: #ffffff;
  border-radius: 20px;
  padding: 32px 28px 28px;
  box-shadow: 0 24px 60px rgba(110, 80, 220, 0.28), 0 0 0 1px rgba(255, 255, 255, 0.4) inset;
  text-align: center;
  transform: translateY(12px) scale(0.96);
  transition: transform 0.3s cubic-bezier(0.2, 0.9, 0.3, 1.2);
}

.qr-modal--open .qr-modal__card {
  transform: translateY(0) scale(1);
}

.qr-modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: rgba(110, 80, 220, 0.08);
  color: var(--color-primary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, transform 0.2s ease;
}

.qr-modal__close:hover {
  background: rgba(110, 80, 220, 0.18);
  transform: rotate(90deg);
}

.qr-modal__close svg {
  width: 16px;
  height: 16px;
}

.qr-modal__title {
  font-size: 18px;
  font-weight: 700;
  color: #1a1530;
  margin: 0 0 6px;
}

.qr-modal__subtitle {
  font-size: 13px;
  color: #6b6788;
  margin: 0 0 18px;
}

.qr-modal__qr {
  width: 220px;
  height: 220px;
  margin: 0 auto 14px;
  padding: 10px;
  background: linear-gradient(135deg, rgba(110, 80, 220, 0.08), rgba(225, 100, 220, 0.06));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.qr-modal__qr img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
}

.qr-modal__hint {
  font-size: 13px;
  color: #8a86a8;
  margin: 0;
  line-height: 1.6;
}

@media (prefers-reduced-motion: reduce) {

  .qr-modal,
  .qr-modal__card,
  .qr-modal__close {
    transition: none !important;
  }

  .qr-modal__close:hover {
    transform: none !important;
  }
}