/* ==========================================================================
   轻云设计 · 官网样式系统
   风格：Modern Dark（影院级暗黑）+ 翡翠绿主色 + 玻璃拟态 + 辉光氛围
   ========================================================================== */

/* ---------- 设计令牌 ---------- */
:root {
  /* 背景层级（带微绿色调，避免纯黑 OLED 拖影） */
  --bg-0: #03050400;
  --bg-0-solid: #030504;
  --bg-1: #060a07;
  --bg-2: #0a0f0b;
  --bg-3: #0e1510;

  /* 玻璃表面 */
  --surface: rgba(255, 255, 255, 0.03);
  --surface-2: rgba(255, 255, 255, 0.05);
  --surface-green: rgba(46, 232, 122, 0.05);

  /* 描边 */
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --border-green: rgba(46, 232, 122, 0.28);

  /* 主色：翡翠绿 */
  --green: #2ee87a;
  --green-2: #22c55e;
  --green-deep: #16a34a;
  --teal: #34d399;
  --green-grad: linear-gradient(135deg, #34d399 0%, #2ee87a 45%, #22c55e 100%);

  /* 文本 */
  --text: #eaf2ec;
  --text-2: #a9bcb0;
  --text-3: #6f8177;

  /* 辉光 */
  --glow-sm: 0 0 24px rgba(46, 232, 122, 0.18);
  --glow-md: 0 8px 40px rgba(46, 232, 122, 0.16);
  --glow-lg: 0 20px 80px rgba(46, 232, 122, 0.22);

  /* 圆角 / 间距 */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;

  /* 字体（系统栈，兼顾中文与拉丁，无外部字体依赖） */
  --font: "Inter", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei",
    "Segoe UI", system-ui, -apple-system, sans-serif;

  /* 容器 */
  --container: 1200px;

  /* 动效 */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- 重置 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 84px;
}

body {
  font-family: var(--font);
  background: var(--bg-1);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* 全局胶片颗粒噪点层（内联 SVG，受 CSP img-src 'self' data: 允许） */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.045;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

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

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

::selection {
  background: rgba(46, 232, 122, 0.28);
  color: #fff;
}

/* 焦点可见（无障碍） */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 通用容器 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  position: relative;
  padding: 110px 0;
}

.section--alt {
  background: var(--bg-2);
}

/* 区块标题 */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--green);
  padding: 6px 14px;
  border: 1px solid var(--border-green);
  border-radius: 100px;
  background: var(--surface-green);
  margin-bottom: 22px;
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
}

.section-head {
  max-width: 720px;
  margin-bottom: 60px;
}

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

.section-title {
  font-size: clamp(28px, 4.4vw, 44px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}

.section-sub {
  font-size: 17px;
  color: var(--text-2);
  line-height: 1.7;
}

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

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 50px;
  padding: 0 28px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 600;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    background 0.25s var(--ease), border-color 0.25s var(--ease);
  white-space: nowrap;
}

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

.btn-primary {
  background: var(--green-grad);
  color: #04140a;
  box-shadow: var(--glow-md);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--glow-lg);
}

.btn-primary:active {
  transform: translateY(-1px) scale(0.99);
}

.btn-ghost {
  border: 1px solid var(--border-strong);
  color: var(--text);
  background: var(--surface);
}

.btn-ghost:hover {
  border-color: var(--border-green);
  background: var(--surface-green);
  transform: translateY(-3px);
}

.btn-sm {
  height: 42px;
  padding: 0 20px;
  font-size: 14px;
}

/* ==========================================================================
   导航
   ========================================================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease),
    backdrop-filter 0.35s var(--ease);
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(8, 12, 9, 0.72);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.01em;
}

.nav__brand img {
  height: 34px;
  width: auto;
}

.nav__brand .brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 11px;
  background: var(--green-2);
  box-shadow: var(--glow-sm);
}

.nav__brand .brand-mark svg {
  width: 20px;
  height: 20px;
  color: #04140a;
}

.nav__brand .brand-mark .brand-mark__logo {
  width: 22px;
  height: 22px;
}

.nav__brand b {
  color: var(--green);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav__menu a {
  position: relative;
  padding: 9px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-2);
  border-radius: 10px;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.nav__menu a:hover {
  color: var(--text);
  background: var(--surface);
}

.nav__menu a.active {
  color: var(--green);
}

.nav__cta {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* 汉堡按钮 */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0 11px;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.nav__toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.nav__toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav__toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 抽屉菜单默认隐藏，仅在移动端媒体查询内启用（修复桌面端误显示） */
.nav__drawer {
  display: none;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding: 140px 0 90px;
  overflow: hidden;
  background: radial-gradient(
      1200px 600px at 78% -8%,
      rgba(46, 232, 122, 0.14),
      transparent 60%
    ),
    radial-gradient(900px 500px at 8% 12%, rgba(52, 211, 153, 0.08), transparent 55%),
    var(--bg-1);
}

/* 网格底纹 */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 30%, transparent 75%);
  pointer-events: none;
}

/* 旋转氛围光晕 */
.hero::after {
  content: "";
  position: absolute;
  top: -35%;
  left: 50%;
  width: 1300px;
  height: 1300px;
  z-index: 0;
  pointer-events: none;
  background: conic-gradient(
    from 0deg,
    transparent 0deg,
    rgba(46, 232, 122, 0.1) 55deg,
    transparent 130deg,
    rgba(52, 211, 153, 0.09) 210deg,
    transparent 290deg,
    rgba(46, 232, 122, 0.06) 340deg,
    transparent 360deg
  );
  filter: blur(70px);
  animation: aurora 26s linear infinite;
}

@keyframes aurora {
  to {
    transform: translateX(-50%) rotate(360deg);
  }
}

/* 漂浮辉光球 */
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.5;
  pointer-events: none;
  will-change: transform;
}

.blob--1 {
  width: 460px;
  height: 460px;
  top: -120px;
  right: -80px;
  background: radial-gradient(circle, rgba(46, 232, 122, 0.5), transparent 70%);
  animation: float1 14s ease-in-out infinite;
}

.blob--2 {
  width: 380px;
  height: 380px;
  bottom: -100px;
  left: -60px;
  background: radial-gradient(circle, rgba(52, 211, 153, 0.4), transparent 70%);
  animation: float2 18s ease-in-out infinite;
}

@keyframes float1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-30px, 40px) scale(1.08); }
}
@keyframes float2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -30px) scale(1.1); }
}

.hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 16px;
  border-radius: 100px;
  border: 1px solid var(--border-green);
  background: var(--surface-green);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-2);
  margin-bottom: 26px;
}

.hero__badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 0 rgba(46, 232, 122, 0.6);
  animation: pulse 2.4s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(46, 232, 122, 0.55); }
  70% { box-shadow: 0 0 0 10px rgba(46, 232, 122, 0); }
  100% { box-shadow: 0 0 0 0 rgba(46, 232, 122, 0); }
}

.hero__title {
  font-size: clamp(34px, 5.6vw, 62px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero__lead {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--text-2);
  line-height: 1.75;
  max-width: 560px;
  margin-bottom: 38px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 52px;
}

/* Hero 数据条 */
.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  max-width: 560px;
}

.stat {
  padding: 18px 20px;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--surface);
}

.stat b {
  display: block;
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  background: var(--green-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat span {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--text-3);
}

/* Hero 右侧：手机预览卡 */
.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.phone {
  position: relative;
  width: 288px;
  height: 588px;
  border-radius: 44px;
  background: linear-gradient(160deg, #14201a, #0a120d);
  border: 1px solid var(--border-strong);
  box-shadow: var(--glow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  padding: 14px;
  transform: perspective(1200px) rotateY(-12deg) rotateX(4deg);
}

.phone__screen {
  width: 100%;
  height: 100%;
  border-radius: 32px;
  background: radial-gradient(120% 80% at 50% 0%, rgba(46, 232, 122, 0.16), transparent 60%),
    #070c09;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
}

.phone__notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 96px;
  height: 24px;
  background: #03050400;
  background: #030504;
  border-radius: 14px;
  z-index: 3;
}

.phone__bar {
  padding: 46px 20px 14px;
}

.phone__hello {
  font-size: 12px;
  color: var(--text-3);
}

.phone__hello b {
  display: block;
  font-size: 19px;
  color: var(--text);
  font-weight: 700;
  margin-top: 2px;
}

.phone__card {
  margin: 8px 16px;
  padding: 16px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(46, 232, 122, 0.16), rgba(46, 232, 122, 0.04));
  border: 1px solid var(--border-green);
}

.phone__card .t {
  font-size: 13px;
  font-weight: 700;
}

.phone__card .s {
  font-size: 11px;
  color: var(--text-2);
  margin-top: 4px;
}

.phone__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  padding: 16px;
}

.phone__grid .gi {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  color: var(--text-2);
}

.phone__grid .gi i {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.phone__grid .gi i svg {
  width: 20px;
  height: 20px;
  color: var(--green);
}

.phone__float {
  position: absolute;
  padding: 12px 16px;
  border-radius: 16px;
  background: rgba(10, 15, 11, 0.86);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-green);
  box-shadow: var(--glow-md);
  font-size: 12.5px;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 4;
}

.phone__float svg {
  width: 20px;
  height: 20px;
  color: var(--green);
}

.phone__float b {
  font-weight: 700;
}

.phone__float--1 {
  top: 70px;
  left: -46px;
  animation: floaty 6s ease-in-out infinite;
}

.phone__float--2 {
  bottom: 96px;
  right: -40px;
  animation: floaty 7s ease-in-out infinite 1s;
}

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ==========================================================================
   通用卡片网格（核心产品功能）
   ========================================================================== */
.grid {
  display: grid;
  gap: 20px;
}

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

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

.card {
  position: relative;
  padding: 30px 28px;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease),
    background 0.35s var(--ease), box-shadow 0.35s var(--ease);
  overflow: hidden;
}

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(400px 200px at var(--mx, 50%) var(--my, 0%), rgba(46, 232, 122, 0.1), transparent 60%);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-6px);
  border-color: var(--border-green);
  background: var(--surface-2);
  box-shadow: var(--glow-md);
}

.card:hover::after {
  opacity: 1;
}

.card__icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-green);
  border: 1px solid var(--border-green);
  margin-bottom: 20px;
}

.card__icon svg {
  width: 26px;
  height: 26px;
  color: var(--green);
}

.card__title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.card__desc {
  font-size: 14.5px;
  color: var(--text-2);
  line-height: 1.7;
}

.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.tag {
  font-size: 12px;
  padding: 4px 11px;
  border-radius: 100px;
  border: 1px solid var(--border);
  color: var(--text-3);
  background: var(--surface);
}

/* ==========================================================================
   AI 超级系统预告
   ========================================================================== */
.teaser {
  position: relative;
  overflow: hidden;
  background: radial-gradient(900px 500px at 50% -10%, rgba(46, 232, 122, 0.12), transparent 60%),
    var(--bg-2);
}

/* 漂移氛围光晕 */
.teaser::before {
  content: "";
  position: absolute;
  width: 700px;
  height: 700px;
  top: -200px;
  right: -160px;
  pointer-events: none;
  background: radial-gradient(circle, rgba(46, 232, 122, 0.16), transparent 68%);
  filter: blur(60px);
  animation: float2 20s ease-in-out infinite;
}

.teaser__shell {
  position: relative;
  border-radius: var(--r-xl);
  border: 1px solid var(--border-green);
  background: linear-gradient(180deg, rgba(46, 232, 122, 0.06), rgba(255, 255, 255, 0.015));
  padding: 64px 56px;
  overflow: hidden;
  box-shadow: var(--glow-md);
}

.teaser__shell::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
}

.teaser__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: 26px;
}

.badge-dev {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 15px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  color: #04140a;
  background: var(--green-grad);
  box-shadow: var(--glow-sm);
}

.badge-dev .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #04140a;
  animation: blink 1.4s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.badge-soft {
  display: inline-flex;
  align-items: center;
  padding: 7px 15px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  border: 1px solid var(--border);
  background: var(--surface);
}

.teaser__title {
  font-size: clamp(30px, 4.6vw, 50px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.teaser__lead {
  font-size: 17.5px;
  color: var(--text-2);
  line-height: 1.8;
  max-width: 760px;
  margin-bottom: 44px;
}

/* 模块卡片 */
.modules {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.module {
  padding: 24px 22px;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: rgba(8, 12, 9, 0.5);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}

.module:hover {
  transform: translateY(-5px);
  border-color: var(--border-green);
}

.module__icon {
  width: 46px;
  height: 46px;
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-green);
  border: 1px solid var(--border-green);
  margin-bottom: 16px;
}

.module__icon svg {
  width: 23px;
  height: 23px;
  color: var(--green);
}

.module h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 7px;
}

.module p {
  font-size: 13.5px;
  color: var(--text-3);
  line-height: 1.6;
}

/* 应用场景 */
.scenes {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.scene {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 20px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 14.5px;
  font-weight: 500;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.scene:hover {
  border-color: var(--border-green);
  background: var(--surface-green);
}

.scene svg {
  width: 18px;
  height: 18px;
  color: var(--green);
}

/* 多端覆盖 */
.platforms {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 28px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.platforms__label {
  font-size: 13.5px;
  color: var(--text-3);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.platform {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-2);
}

.platform svg {
  width: 22px;
  height: 22px;
  color: var(--green);
}

.teaser__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 40px;
}

/* ==========================================================================
   版本报价
   ========================================================================== */
.pricing__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 70px;
}

.price-card {
  position: relative;
  padding: 36px 30px;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease),
    box-shadow 0.35s var(--ease);
}

.price-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-green);
  box-shadow: var(--glow-md);
}

.price-card--featured {
  border-color: var(--border-green);
  background: linear-gradient(180deg, rgba(46, 232, 122, 0.08), rgba(255, 255, 255, 0.02));
  box-shadow: var(--glow-md);
}

.price-card__flag {
  position: absolute;
  top: -13px;
  right: 26px;
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 12.5px;
  font-weight: 700;
  color: #04140a;
  background: var(--green-grad);
  box-shadow: var(--glow-sm);
}

.price-card__name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
}

.price-card__sub {
  font-size: 13.5px;
  color: var(--text-3);
  margin-bottom: 24px;
}

.price-card__platforms {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--text-2);
  padding: 14px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.price-card__platforms svg {
  width: 18px;
  height: 18px;
  color: var(--green);
}

.price-card__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 30px;
  flex: 1;
}

.price-card__list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-2);
}

.price-card__list svg {
  width: 18px;
  height: 18px;
  color: var(--green);
  flex-shrink: 0;
  margin-top: 2px;
}

/* 版本比较表 */
.compare {
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--surface);
}

.compare__scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.compare table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 14px;
}

.compare th,
.compare td {
  padding: 15px 18px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.compare th:first-child,
.compare td:first-child {
  text-align: left;
  color: var(--text-2);
  font-weight: 500;
  min-width: 220px;
}

.compare thead th {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  background: var(--bg-3);
  padding: 20px 18px;
}

.compare thead th.hl {
  color: var(--green);
}

.compare tbody tr:hover {
  background: var(--surface);
}

.compare .grp td {
  background: var(--bg-3);
  font-weight: 700;
  color: var(--text);
  text-align: left;
  font-size: 13.5px;
  letter-spacing: 0.03em;
}

.compare .yes {
  color: var(--green);
}

.compare .no {
  color: var(--text-3);
}

.compare .cell-note {
  display: block;
  font-size: 11px;
  color: var(--text-3);
  margin-top: 3px;
}

.compare .ic {
  width: 20px;
  height: 20px;
  vertical-align: middle;
}

.compare__note {
  padding: 16px 20px;
  font-size: 12.5px;
  color: var(--text-3);
  border-top: 1px solid var(--border);
}

/* ==========================================================================
   快速体验
   ========================================================================== */
.exp__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 760px;
  margin: 0 auto;
}

.exp-card {
  padding: 40px 30px;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  text-align: center;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease),
    box-shadow 0.35s var(--ease);
}

.exp-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-green);
  box-shadow: var(--glow-md);
}

.exp-card__qr {
  width: 168px;
  height: 168px;
  margin: 0 auto 22px;
  padding: 12px;
  border-radius: 20px;
  background: #fff;
  border: 1px solid var(--border-strong);
}

.exp-card__qr img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.exp-card__title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.exp-card__sub {
  font-size: 13.5px;
  color: var(--text-3);
}

/* ==========================================================================
   联系 / 底部
   ========================================================================== */
.footer {
  position: relative;
  padding: 80px 0 36px;
  background: var(--bg-0-solid);
  border-top: 1px solid var(--border);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 50px;
  border-bottom: 1px solid var(--border);
}

.footer__brand .nav__brand {
  margin-bottom: 18px;
}

.footer__brand p {
  font-size: 14px;
  color: var(--text-3);
  line-height: 1.7;
  max-width: 280px;
}

.footer__qr {
  width: 116px;
  height: 116px;
  margin-top: 20px;
  padding: 8px;
  border-radius: 14px;
  background: #fff;
}

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

.footer__col h5 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--text);
}

.footer__col li {
  margin-bottom: 12px;
}

.footer__col a,
.footer__col span {
  font-size: 14px;
  color: var(--text-3);
  transition: color 0.2s var(--ease);
  word-break: break-all;
}

.footer__col a:hover {
  color: var(--green);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px 22px;
  padding-top: 30px;
  font-size: 12.5px;
  color: var(--text-3);
  text-align: center;
}

.footer__bottom a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--text-3);
  transition: color 0.2s var(--ease);
}

.footer__bottom a:hover {
  color: var(--green);
}

.footer__bottom img {
  width: 15px;
  height: 15px;
}

/* ==========================================================================
   滚动进入动画
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

/* 逐项错峰 */
[data-stagger] > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

[data-stagger].in > * {
  opacity: 1;
  transform: none;
}

[data-stagger].in > *:nth-child(1) { transition-delay: 0.04s; }
[data-stagger].in > *:nth-child(2) { transition-delay: 0.1s; }
[data-stagger].in > *:nth-child(3) { transition-delay: 0.16s; }
[data-stagger].in > *:nth-child(4) { transition-delay: 0.22s; }
[data-stagger].in > *:nth-child(5) { transition-delay: 0.28s; }
[data-stagger].in > *:nth-child(6) { transition-delay: 0.34s; }
[data-stagger].in > *:nth-child(7) { transition-delay: 0.4s; }
[data-stagger].in > *:nth-child(8) { transition-delay: 0.46s; }
[data-stagger].in > *:nth-child(9) { transition-delay: 0.52s; }
[data-stagger].in > *:nth-child(10) { transition-delay: 0.58s; }
[data-stagger].in > *:nth-child(11) { transition-delay: 0.64s; }
[data-stagger].in > *:nth-child(12) { transition-delay: 0.7s; }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 60px;
  }
  .hero__visual {
    order: -1;
  }
  .phone {
    transform: none;
  }
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .modules {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .nav__menu,
  .nav__cta .btn {
    display: none;
  }
  .nav__toggle {
    display: flex;
  }

  /* 移动端抽屉菜单 */
  .nav__drawer {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    z-index: 99;
    padding: 16px 24px 28px;
    background: rgba(8, 12, 9, 0.96);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 4px;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s var(--ease), opacity 0.3s var(--ease),
      visibility 0.3s;
  }
  .nav__drawer.open {
    transform: none;
    opacity: 1;
    visibility: visible;
  }
  .nav__drawer a {
    padding: 14px 16px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-2);
    border-radius: 12px;
  }
  .nav__drawer a:hover,
  .nav__drawer a.active {
    color: var(--green);
    background: var(--surface);
  }
  .nav__drawer .btn {
    margin-top: 12px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 76px 0;
  }
  .grid--3,
  .pricing__cards {
    grid-template-columns: 1fr;
  }
  .hero {
    padding: 120px 0 70px;
  }
  .hero__stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }
  .stat {
    padding: 14px 12px;
  }
  .stat b {
    font-size: 23px;
  }
  .teaser__shell {
    padding: 40px 24px;
  }
  .exp__grid {
    grid-template-columns: 1fr;
  }
  .footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .phone__float--1 {
    left: -10px;
  }
  .phone__float--2 {
    right: -10px;
  }
}

@media (max-width: 520px) {
  .grid--4,
  .modules {
    grid-template-columns: 1fr;
  }
  .hero__actions .btn {
    width: 100%;
  }
  .container {
    padding: 0 18px;
  }
}

/* ==========================================================================
   控制台介绍页（console.html）
   ========================================================================== */
.console-hero {
  position: relative;
  padding: 170px 0 90px;
  overflow: hidden;
  text-align: center;
  background: radial-gradient(1000px 560px at 50% -12%, rgba(46, 232, 122, 0.16), transparent 60%),
    var(--bg-1);
}

.console-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 20%, #000 25%, transparent 72%);
  mask-image: radial-gradient(ellipse 70% 60% at 50% 20%, #000 25%, transparent 72%);
  pointer-events: none;
}

.console-hero__inner {
  position: relative;
  z-index: 2;
  max-width: 820px;
  margin: 0 auto;
}

.console-hero .eyebrow {
  margin-bottom: 26px;
}

.console-hero__title {
  font-size: clamp(34px, 5.4vw, 60px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 22px;
}

.console-hero__lead {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--text-2);
  line-height: 1.75;
  max-width: 640px;
  margin: 0 auto 38px;
}

.console-hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

/* 旧版控制台提示卡 */
.legacy {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 34px 38px;
  border-radius: var(--r-lg);
  border: 1px solid var(--border-green);
  background: linear-gradient(135deg, rgba(46, 232, 122, 0.08), rgba(255, 255, 255, 0.02));
  box-shadow: var(--glow-md);
}

.legacy__text h3 {
  font-size: 21px;
  font-weight: 700;
  margin-bottom: 8px;
}

.legacy__text p {
  font-size: 14.5px;
  color: var(--text-2);
  line-height: 1.7;
  max-width: 520px;
}

.legacy__action {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.legacy__action .hint {
  font-size: 12.5px;
  color: var(--text-3);
}

/* 流水线步骤条 */
.flow {
  display: flex;
  align-items: stretch;
  gap: 0;
  flex-wrap: wrap;
  justify-content: center;
}

.flow__step {
  position: relative;
  flex: 1 1 160px;
  min-width: 150px;
  padding: 26px 20px;
  text-align: center;
  border: 1px solid var(--border);
  background: var(--surface);
}

.flow__step:first-child {
  border-radius: var(--r-md) 0 0 var(--r-md);
}

.flow__step:last-child {
  border-radius: 0 var(--r-md) var(--r-md) 0;
}

.flow__step + .flow__step {
  border-left: none;
}

.flow__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-size: 14px;
  font-weight: 700;
  color: #04140a;
  background: var(--green-grad);
  box-shadow: var(--glow-sm);
  margin-bottom: 14px;
}

.flow__step h4 {
  font-size: 15.5px;
  font-weight: 700;
  margin-bottom: 6px;
}

.flow__step p {
  font-size: 12.5px;
  color: var(--text-3);
  line-height: 1.55;
}

.flow__arrow {
  position: absolute;
  top: 50%;
  right: -11px;
  transform: translateY(-50%);
  z-index: 2;
  width: 22px;
  height: 22px;
  color: var(--green);
}

/* ---------- 减少动态效果（无障碍） ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal,
  [data-stagger] > * {
    opacity: 1 !important;
    transform: none !important;
  }
}