/* =====================================================================
   WOAIL Mail — Landing Page Styles
   Liquid Glass × Soft Sci-Fi × AI Future
   ===================================================================== */

/* ---------- 0. Global Scrollbar — 整体隐藏（保留滚动能力） ---------- */
/* Webkit 内核（Chrome / Edge / Safari） */
::-webkit-scrollbar { width: 0; height: 0; display: none; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: transparent; }
::-webkit-scrollbar-corner { background: transparent; }
::-webkit-resizer { background: transparent; }
/* Firefox 现代标准 — 隐藏滚动条 */
@supports (scrollbar-color: purple transparent) {
  * {
    scrollbar-width: none;
    scrollbar-color: transparent transparent;
  }
}
/* 兜底：彻底抹除可能的残留滚动条 */
html, body { scrollbar-width: none; -ms-overflow-style: none; }
html::-webkit-scrollbar, body::-webkit-scrollbar { width: 0; height: 0; display: none; }

/* ---------- 0b. Scroll Cue（视口底部居中，鼠标外壳 + SCROLL 字 + 滚动滚轮点） ---------- */
/* 容器：首屏底部居中，纵向排列（SCROLL 在上、鼠标在下），常驻可见 */
.scroll-cue {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  z-index: 40;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  /* 默认就是淡淡的紫色（即原来 hover 的效果） */
  color: var(--ai-purple-deep);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s var(--ease);
  pointer-events: none;
  -webkit-tap-highlight-color: transparent;
}
/* 首屏在视口中心时由 JS 添加 .is-visible 显示 */
.scroll-cue.is-visible { opacity: 0.9; visibility: visible; pointer-events: auto; }

/* SCROLL 字眼（鼠标上方） */
.scroll-cue__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: inherit;
  user-select: none;
}

/* 单个按钮 */
.scroll-cue__btn {
  border: none;
  background: none;
  padding: 4px;
  cursor: pointer;
  color: inherit;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.25s ease, transform 0.25s var(--ease);
  -webkit-tap-highlight-color: transparent;
}
.scroll-cue__btn:hover { opacity: 0.7; }
.scroll-cue__btn--down:hover { transform: translateY(2px); }
.scroll-cue__btn:focus-visible { outline: 2px solid var(--ai-purple); outline-offset: 3px; border-radius: 12px; }

/* 鼠标胶囊外壳 */
.scroll-cue__mouse {
  width: 22px;
  height: 34px;
  border: 2px solid currentColor;
  border-radius: 12px;
  position: relative;
  display: block;
}
/* 竖向滚轮点：一条窄竖条，在鼠标内上下滚动表示方向 */
.scroll-cue__mouse::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 8px;
  width: 3px;
  height: 9px;
  margin-left: -1.5px;
  border-radius: 3px;
  background: currentColor;
  animation: cueWheelDot 1.6s var(--ease-soft) infinite;
}
/* 滚轮点：从上往下滚动（仅首屏一个，纯竖直位移） */
@keyframes cueWheelDot {
  0%   { opacity: 0; top: 8px; }
  35%  { opacity: 1; top: 13px; }
  70%  { opacity: 1; top: 18px; }
  100% { opacity: 0; top: 22px; }
}
/* 移动端 / 缩小窗口时略微上移，避免贴边 */
@media (max-width: 768px) {
  .scroll-cue { bottom: 18px; }
}

/* ---------- 1. Design Tokens ---------- */
:root {
  /* Colors */
  --pearl: #F8F9FF;
  --ai-purple: #B8A7FF;
  --ai-purple-deep: #9B85FF;
  --ice-blue: #C9E7FF;
  --ink: #1D1D1F;
  --ink-soft: #515154;
  --ink-mute: #86868B;
  --line: rgba(255,255,255,0.6);
  --line-soft: rgba(0,0,0,0.06);
  --green: #34C759;

  /* Dark */
  --dark: #080812;
  --dark-card: rgba(255,255,255,0.06);

  /* Glass */
  --glass-bg: rgba(255,255,255,0.35);
  --glass-bg-strong: rgba(255,255,255,0.55);
  --glass-blur: 40px;
  --glass-border: 1px solid rgba(255,255,255,0.6);
  --glass-radius: 24px;
  --glass-shadow: 0 8px 32px rgba(99,90,180,0.12), 0 2px 8px rgba(99,90,180,0.08);

  /* Gradients */
  --grad-ai: linear-gradient(135deg, #B8A7FF 0%, #C9E7FF 100%);
  --grad-ai-text: linear-gradient(120deg, #9B85FF 0%, #B8A7FF 35%, #C9E7FF 100%);
  --grad-soft: linear-gradient(180deg, #FFFFFF 0%, #F8F9FF 100%);

  /* Type */
  --font: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Cascadia Code', Consolas, monospace;

  /* Layout */
  --maxw: 1280px;
  --nav-h: 72px;

  /* Easing */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-snap-type: y proximity; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--pearl);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  letter-spacing: -0.01em;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }
canvas { display: block; }

::selection { background: rgba(184,167,255,0.35); color: var(--ink); }

/* ---------- 3. Glass Utilities ---------- */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  border: var(--glass-border);
  border-radius: var(--glass-radius);
  box-shadow: var(--glass-shadow);
}
.glass-pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.5);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.7);
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 13px; font-weight: 500; color: var(--ink-soft);
  box-shadow: 0 2px 12px rgba(99,90,180,0.08);
}

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

/* ---------- 4. Particle + Liquid Layers ---------- */
.particles-canvas {
  position: fixed; inset: 0; width: 100%; height: 100%;
  z-index: 0; pointer-events: none; opacity: 0.6;
}
.liquid-layer {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(280px circle at var(--mx,50%) var(--my,50%),
    rgba(184,167,255,0.10), transparent 60%);
  transition: background 0.2s var(--ease-soft);
}

/* ---------- 5. Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 max(24px, calc(50% - var(--maxw)/2));
  transition: background 0.4s var(--ease), backdrop-filter 0.4s var(--ease);
}
.nav.scrolled {
  background: rgba(248,249,255,0.72);
  backdrop-filter: blur(30px) saturate(180%);
  -webkit-backdrop-filter: blur(30px) saturate(180%);
  border-bottom: 1px solid rgba(255,255,255,0.6);
}
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 600; }
.nav-logo-mark { display: flex; filter: drop-shadow(0 4px 12px rgba(184,167,255,0.3)); }
.nav-logo-text { display: flex; flex-direction: column; line-height: 1; }
.nav-logo-main { font-size: 18px; font-weight: 700; letter-spacing: -0.02em; }
.nav-logo-sub { font-size: 11px; font-weight: 500; color: var(--ink-mute); letter-spacing: 0.18em; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-link {
  font-size: 14px; font-weight: 500; color: var(--ink-soft);
  padding: 8px 14px; border-radius: 999px; transition: 0.25s var(--ease);
}
.nav-link:hover { color: var(--ink); background: rgba(255,255,255,0.5); }
.nav-link-login {
  background: var(--ink); color: #fff; padding: 9px 18px;
}
.nav-link-login:hover { background: #000; color: #fff; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: 0.3s var(--ease); }

/* ---------- 6. Hero ---------- */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center; overflow: hidden;
  padding-top: var(--nav-h);
  scroll-snap-align: start;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg-img {
  position: absolute; left: 0; top: 0; width: 100%; height: 100%; max-width: none;
  object-fit: cover; object-position: right center;
  filter: saturate(1.05) contrast(1.02);
}
/* Overlay removed: background fully visible */
.hero-bg-overlay { display: none; }
.hero-bg-glow {
  position: absolute; right: 8%; top: 30%; width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(184,167,255,0.45), rgba(184,167,255,0) 70%);
  filter: blur(40px); animation: heroGlow 8s ease-in-out infinite; z-index: 0;
}
.hero-content {
  position: relative; z-index: 2;
  width: 100%; max-width: var(--maxw); margin: 0 auto;
  padding: 40px max(24px, calc((100% - var(--maxw))/2)) 80px;
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 40px; align-items: center;
}
.hero-text { max-width: 560px; }
.hero-eyebrow { margin-bottom: 24px; }
.hero-eyebrow-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--grad-ai);
  box-shadow: 0 0 0 4px rgba(184,167,255,0.2);
  animation: pulse 2.4s ease-in-out infinite;
}
.hero-title { font-size: clamp(44px, 6.4vw, 86px); font-weight: 800; line-height: 1.02; letter-spacing: -0.04em; margin-bottom: 18px; }
.hero-title-line { display: block; }
.hero-subtitle-cn { font-size: clamp(20px, 2.2vw, 28px); font-weight: 300; color: var(--ink-soft); line-height: 1.4; margin-bottom: 14px; }
.hero-desc { font-size: 16px; color: var(--ink-mute); line-height: 1.6; margin-bottom: 32px; max-width: 460px; }
.hero-desc-em { color: var(--ink-soft); font-weight: 500; }

/* Buttons */
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 24px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 26px; border-radius: 999px; font-size: 15px; font-weight: 600;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease);
  will-change: transform;
}
.btn svg { transition: transform 0.25s var(--ease); }
.btn-primary {
  background: var(--ink); color: #fff;
  box-shadow: 0 8px 24px rgba(0,0,0,0.18), 0 2px 6px rgba(0,0,0,0.12);
}
.btn-primary:hover { transform: translateY(-2px) scale(1.02); box-shadow: 0 14px 36px rgba(0,0,0,0.22); }
.btn-primary:hover svg { transform: translateX(3px); }
.btn-secondary {
  background: var(--glass-bg-strong); color: var(--ink);
  backdrop-filter: blur(24px) saturate(180%); -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: var(--glass-border); box-shadow: var(--glass-shadow);
}
.btn-secondary:hover { transform: translateY(-2px) scale(1.02); background: rgba(255,255,255,0.7); }
.hero-meta { display: flex; flex-wrap: wrap; gap: 18px; }
.hero-meta-item { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--ink-mute); }

/* ---------- 7. Hero Visual + Floating Cards ---------- */
.hero-visual { position: relative; height: 620px; }
.float-card {
  position: absolute; width: 230px; padding: 18px;
  animation: floatY 7s ease-in-out infinite;
}
.float-card-1 { top: 8%; right: 6%; animation-delay: 0s; }
.float-card-2 { top: 38%; right: 30%; animation-delay: -2.4s; width: 210px; }
.float-card-3 { bottom: 10%; right: 4%; animation-delay: -1.2s; width: 210px; }
.float-card-head { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; }
.float-card-icon { width: 32px; height: 32px; border-radius: 10px; display: grid; place-items: center; color: #fff; flex-shrink: 0; }
.float-card-icon-purple { background: linear-gradient(135deg, #9B85FF, #B8A7FF); }
.float-card-icon-blue { background: linear-gradient(135deg, #6CB8FF, #C9E7FF); }
.float-card-icon-ice { background: linear-gradient(135deg, #C9E7FF, #B8A7FF); }
.float-card-title { font-size: 14px; font-weight: 700; }
.float-card-badge { margin-left: auto; font-size: 11px; color: var(--ink-mute); background: rgba(255,255,255,0.5); padding: 3px 8px; border-radius: 999px; }
.float-card-body { display: flex; flex-direction: column; gap: 7px; }
.float-card-row { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink-soft); }
.float-card-count { margin-left: auto; font-weight: 700; color: var(--ink); }
.dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.dot-red { background: #FF6B6B; } .dot-blue { background: #6CB8FF; } .dot-purple { background: #B8A7FF; }
.float-card-progress { height: 4px; border-radius: 4px; background: rgba(0,0,0,0.08); overflow: hidden; margin-top: 6px; }
.float-card-progress-bar { height: 100%; width: 68%; background: var(--grad-ai); border-radius: 4px; animation: progressLoad 3s ease var(--ease) infinite alternate; }
.float-card-foot { font-size: 11px; color: var(--ink-mute); margin-top: 2px; }
.float-card-label { font-size: 12px; color: var(--ink-mute); }
.float-card-label-tiny { font-size: 10px; text-transform: uppercase; letter-spacing: 0.1em; margin-top: 4px; }
.float-card-tones { display: flex; gap: 6px; margin: 6px 0 10px; flex-wrap: wrap; }
.tone-chip { font-size: 11px; padding: 4px 10px; border-radius: 999px; background: rgba(0,0,0,0.05); color: var(--ink-soft); }
.tone-active { background: var(--ink); color: #fff; }
.float-card-generate {
  display: inline-flex; align-items: center; gap: 6px; align-self: flex-start;
  font-size: 12px; font-weight: 600; color: #fff; padding: 7px 14px; border-radius: 999px;
  background: linear-gradient(135deg, #9B85FF, #B8A7FF);
  box-shadow: 0 4px 14px rgba(155,133,255,0.35);
}
.float-card-mem { display: flex; align-items: center; gap: 7px; font-size: 12px; color: var(--ink-soft); }
/* Small chips removed; only 3 large floating cards remain */
.float-orb { position: absolute; border-radius: 50%; background: radial-gradient(circle, rgba(184,167,255,0.55), rgba(201,231,255,0) 70%); filter: blur(2px); animation: floatY 9s ease-in-out infinite; }
.float-orb-1 { width: 90px; height: 90px; top: 16%; right: 42%; }
.float-orb-2 { width: 60px; height: 60px; bottom: 22%; right: 58%; animation-delay: -3s; }

/* ---------- 8. Sections base ---------- */
/* 顶部预留导航高度，避免固定透明导航压住本屏内容/背景穿透 */
.section { position: relative; z-index: 2; padding: calc(var(--nav-h) + 120px) 0 120px; scroll-snap-align: start; }
.section-inner { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 max(24px, calc((100% - var(--maxw))/2)); text-align: center; }
.section-eyebrow { margin: 0 auto 22px; }
.section-title { font-size: clamp(34px, 4.6vw, 64px); font-weight: 800; line-height: 1.06; letter-spacing: -0.035em; margin-bottom: 16px; text-shadow: 0 2px 24px rgba(248,249,255,0.5), 0 1px 4px rgba(0,0,0,0.06); }
.section-lead { font-size: clamp(16px, 1.6vw, 20px); color: var(--ink-mute); max-width: 560px; margin: 0 auto 0; text-shadow: 0 2px 16px rgba(248,249,255,0.6); }
.check { width: 18px; height: 18px; border-radius: 50%; flex-shrink: 0; background: var(--grad-ai) center/100% no-repeat; position: relative; }
.check::after { content: ''; position: absolute; inset: 0; margin: auto; width: 5px; height: 9px; border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg); }

/* Reveal animations */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal-up { opacity: 0; transform: translateY(34px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal-up.in { opacity: 1; transform: none; }

/* ---------- 9. Evolve section ---------- */
.section-evolve {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center; overflow: hidden;
  padding: 130px 0;
  background: var(--pearl);
}
.section-evolve-bg { position: absolute; inset: 0; z-index: 0; }
.section-evolve-bg-img {
  position: absolute; left: 0; top: 0; width: 100%; height: 100%; max-width: none;
  object-fit: cover; object-position: center center;
  filter: saturate(1.05) contrast(1.02);
}
/* Overlay restored with higher transparency for clearer background */
.section-evolve-bg-overlay {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 85% 75% at center, rgba(248,249,255,0.75) 0%, rgba(248,249,255,0.6) 55%, rgba(248,249,255,0.45) 100%);
}
.section-evolve-bg-glow {
  position: absolute; left: 50%; top: 38%; width: 480px; height: 480px; transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184,167,255,0.38), rgba(184,167,255,0) 70%);
  filter: blur(40px); animation: heroGlow 8s ease-in-out infinite; z-index: 0;
}
.section-evolve .section-inner { position: relative; z-index: 2; }
.section-evolve .evolve-grid { background: radial-gradient(ellipse 80% 70% at center, rgba(248,249,255,0.3), transparent 75%); padding: 40px 20px; border-radius: 32px; }
.evolve-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 56px; }
.evolve-card { text-align: left; padding: 36px 30px; transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease); }
.evolve-card:hover { transform: translateY(-6px); box-shadow: 0 24px 60px rgba(99,90,180,0.18); }
.evolve-card:nth-child(2) { transition-delay: 0.08s; }
.evolve-card:nth-child(3) { transition-delay: 0.16s; }
.evolve-icon { width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; color: #fff; margin-bottom: 22px; }
.evolve-icon-purple { background: linear-gradient(135deg, #9B85FF, #B8A7FF); box-shadow: 0 8px 24px rgba(155,133,255,0.3); }
.evolve-icon-blue { background: linear-gradient(135deg, #6CB8FF, #C9E7FF); box-shadow: 0 8px 24px rgba(108,184,255,0.3); }
.evolve-icon-ice { background: linear-gradient(135deg, #C9E7FF, #B8A7FF); box-shadow: 0 8px 24px rgba(184,167,255,0.28); }
.evolve-card-title { font-size: 24px; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 10px; }
.evolve-card-desc { font-size: 14px; color: var(--ink-mute); line-height: 1.6; margin-bottom: 18px; }
.evolve-list { display: flex; flex-direction: column; gap: 10px; }
.evolve-list li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--ink-soft); font-weight: 500; }

/* ---------- 10. Mockup (Meet WOAIL Mail) ---------- */
.section-meet {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center; overflow: hidden;
  padding: 130px 0;
  background: var(--pearl);
}
.section-meet-bg { position: absolute; inset: 0; z-index: 0; }
.section-meet-bg-img {
  position: absolute; left: 0; top: 0; width: 100%; height: 100%; max-width: none;
  object-fit: cover; object-position: center center;
  filter: saturate(1.05) contrast(1.02);
}
/* Overlay restored with higher transparency for clearer background */
.section-meet-bg-overlay {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 90% 80% at center, rgba(248,249,255,0.75) 0%, rgba(248,249,255,0.6) 55%, rgba(248,249,255,0.45) 100%);
}
.section-meet-bg-glow {
  position: absolute; left: 50%; top: 40%; width: 500px; height: 500px; transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201,231,255,0.4), rgba(201,231,255,0) 70%);
  filter: blur(40px); animation: heroGlow 8s ease-in-out infinite; z-index: 0;
}
.section-meet .section-inner { position: relative; z-index: 2; }
.section-meet .mockup { background: radial-gradient(ellipse 90% 80% at center, rgba(255,255,255,0.4), rgba(255,255,255,0.6) 80%); }
.mockup {
  margin-top: 56px; text-align: left;
  display: grid; grid-template-columns: 220px 1fr 320px;
  min-height: 520px; overflow: hidden;
  background: rgba(255,255,255,0.6);
  border: 1px solid rgba(255,255,255,0.7);
  box-shadow: 0 30px 80px rgba(99,90,180,0.16), 0 8px 24px rgba(99,90,180,0.1);
}
.mockup-sidebar { display: flex; flex-direction: column; gap: 14px; padding: 22px 18px; background: rgba(248,249,255,0.6); border-right: 1px solid var(--line-soft); }
.mockup-brand { display: flex; align-items: center; gap: 8px; font-size: 16px; font-weight: 700; padding: 4px 4px 10px; }
.mockup-logo { display: grid; place-items: center; }
.mockup-compose { display: flex; align-items: center; gap: 8px; justify-content: center; padding: 10px; border-radius: 12px; background: var(--ink); color: #fff; font-size: 13px; font-weight: 600; transition: transform 0.25s var(--ease); }
.mockup-compose:hover { transform: translateY(-1px); }
.mockup-nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.mockup-nav-item { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 10px; font-size: 13px; color: var(--ink-soft); font-weight: 500; transition: 0.2s var(--ease); }
.mockup-nav-item:hover { background: rgba(255,255,255,0.6); color: var(--ink); }
.mockup-nav-item.active { background: rgba(184,167,255,0.18); color: var(--ink); font-weight: 600; }
.mockup-nav-ai { color: var(--ai-purple-deep); }
.mockup-badge { margin-left: auto; font-size: 10px; font-weight: 700; background: var(--grad-ai); color: #fff; padding: 2px 7px; border-radius: 999px; font-family: var(--font-mono); }
.mockup-user { display: flex; align-items: center; gap: 10px; padding: 10px 8px; border-radius: 12px; background: rgba(255,255,255,0.5); }
.mockup-avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--grad-ai); color: #fff; display: grid; place-items: center; font-size: 13px; font-weight: 700; }
.mockup-user-info { display: flex; flex-direction: column; line-height: 1.2; }
.mockup-user-name { font-size: 12px; font-weight: 700; }
.mockup-user-mail { font-size: 10px; color: var(--ink-mute); font-family: var(--font-mono); }

.mockup-list { border-right: 1px solid var(--line-soft); display: flex; flex-direction: column; overflow: hidden; }
.mockup-list-head { display: flex; align-items: baseline; justify-content: space-between; padding: 20px 22px 14px; }
.mockup-list-head h4 { font-size: 17px; font-weight: 700; }
.mockup-list-count { font-size: 12px; color: var(--ink-mute); }
.mockup-mail { display: flex; align-items: flex-start; gap: 12px; padding: 14px 22px; border-top: 1px solid var(--line-soft); cursor: pointer; transition: background 0.2s var(--ease); }
.mockup-mail:hover { background: rgba(184,167,255,0.06); }
.mockup-mail.active { background: rgba(184,167,255,0.12); }
.mockup-mail-avatar { width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; color: #fff; font-size: 14px; font-weight: 700; flex-shrink: 0; }
.av-1 { background: linear-gradient(135deg, #9B85FF, #C9E7FF); }
.av-2 { background: linear-gradient(135deg, #6CB8FF, #9B85FF); }
.av-3 { background: linear-gradient(135deg, #B8A7FF, #6CB8FF); }
.av-4 { background: linear-gradient(135deg, #FFB3B3, #B8A7FF); }
.mockup-mail-main { flex: 1; min-width: 0; }
.mockup-mail-top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 3px; }
.mockup-mail-from { font-size: 13px; font-weight: 700; }
.mockup-mail-time { font-size: 11px; color: var(--ink-mute); }
.mockup-mail-sub { font-size: 13px; font-weight: 600; margin-bottom: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mockup-mail-prev { font-size: 12px; color: var(--ink-mute); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mockup-mail-flag { width: 8px; height: 8px; border-radius: 50%; margin-top: 6px; flex-shrink: 0; }
.flag-red { background: #FF6B6B; box-shadow: 0 0 0 3px rgba(255,107,107,0.18); }

.mockup-ai { padding: 22px 20px; display: flex; flex-direction: column; gap: 18px; background: linear-gradient(180deg, rgba(184,167,255,0.06), rgba(201,231,255,0.06)); }
.mockup-ai-head { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 700; }
.mockup-ai-spark { width: 30px; height: 30px; border-radius: 9px; background: var(--grad-ai); color: #fff; display: grid; place-items: center; }
.mockup-ai-status { margin-left: auto; font-size: 11px; color: var(--ink-mute); font-weight: 500; }
.mockup-ai-block { display: flex; flex-direction: column; gap: 8px; }
.mockup-ai-label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--ai-purple-deep); font-weight: 700; }
.mockup-ai-text { font-size: 13px; color: var(--ink-soft); line-height: 1.55; }
.mockup-ai-text b { color: var(--ink); }
.mockup-ai-quote { font-size: 13px; color: var(--ink); line-height: 1.55; padding: 12px 14px; background: rgba(255,255,255,0.6); border-left: 3px solid var(--ai-purple); border-radius: 0 10px 10px 0; }
.mockup-ai-actions { display: flex; gap: 8px; margin-top: 4px; }
.mockup-ai-btn { padding: 7px 16px; border-radius: 999px; font-size: 12px; font-weight: 600; background: rgba(0,0,0,0.05); color: var(--ink-soft); transition: 0.2s var(--ease); }
.mockup-ai-btn:hover { background: rgba(0,0,0,0.1); }
.mockup-ai-btn.primary { background: var(--ink); color: #fff; }
.mockup-ai-btn.primary:hover { background: #000; }
.mockup-ai-tasks { display: flex; flex-direction: column; gap: 8px; }
.mockup-task { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--ink-soft); }
.mockup-task-check { width: 16px; height: 16px; border-radius: 5px; border: 1.5px solid var(--ai-purple); flex-shrink: 0; transition: 0.2s var(--ease); }
.mockup-task:hover .mockup-task-check { background: var(--grad-ai); border-color: transparent; }
.mockup-task:hover .mockup-task-check::after { content: ''; display: block; margin: auto; width: 4px; height: 7px; border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg); }

/* ---------- 11. Ecosystem ---------- */
.section-eco {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center; overflow: hidden;
  padding: 130px 0;
  background: var(--pearl);
}
.section-eco-bg { position: absolute; inset: 0; z-index: 0; }
.section-eco-bg-img {
  position: absolute; left: 0; top: 0; width: 100%; height: 100%; max-width: none;
  object-fit: cover; object-position: center center;
  filter: saturate(1.05) contrast(1.02);
}
/* Overlay restored with higher transparency for clearer background */
.section-eco-bg-overlay {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 90% 80% at center, rgba(248,249,255,0.75) 0%, rgba(248,249,255,0.6) 55%, rgba(248,249,255,0.45) 100%);
}
.section-eco-bg-glow {
  position: absolute; left: 50%; top: 42%; width: 520px; height: 520px; transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184,167,255,0.38), rgba(184,167,255,0) 70%);
  filter: blur(40px); animation: heroGlow 8s ease-in-out infinite; z-index: 0;
}
.section-eco .section-inner { position: relative; z-index: 2; }
.section-eco .section-eyebrow, .section-eco .section-title, .section-eco .section-lead { position: relative; }
.section-eco .section-title::before, .section-eco .section-lead::before { content: ''; position: absolute; inset: -20px -40px; background: radial-gradient(ellipse 70% 100% at center, rgba(248,249,255,0.35), transparent 70%); z-index: -1; border-radius: 50%; }
.eco-orbit { position: relative; width: 100%; max-width: 720px; height: 520px; margin: 60px auto 0; }
.eco-rings { position: absolute; inset: 0; display: grid; place-items: center; }
.eco-ring { position: absolute; border-radius: 50%; border: 1px solid rgba(184,167,255,0.25); }
.eco-ring-1 { width: 220px; height: 220px; border-color: rgba(184,167,255,0.4); animation: spin 40s linear infinite; }
.eco-ring-2 { width: 380px; height: 380px; border-color: rgba(184,167,255,0.22); animation: spin 60s linear infinite reverse; }
.eco-ring-3 { width: 540px; height: 540px; border-color: rgba(201,231,255,0.2); animation: spin 80s linear infinite; }
.eco-center {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 160px; height: 160px; border-radius: 50%;
  display: grid; place-items: center; text-align: center; gap: 4px;
  background: rgba(255,255,255,0.55);
  box-shadow: 0 20px 60px rgba(155,133,255,0.25), inset 0 0 0 1px rgba(255,255,255,0.6);
  animation: ecoPulse 5s ease-in-out infinite;
}
.eco-center-logo { display: grid; place-items: center; }
.eco-center-name { font-size: 16px; font-weight: 800; letter-spacing: -0.02em; }
.eco-center-sub { font-size: 9px; color: var(--ink-mute); letter-spacing: 0.18em; text-transform: uppercase; }
.eco-node {
  position: absolute; padding: 12px 18px; border-radius: 16px;
  display: flex; flex-direction: column; gap: 2px; text-align: left;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
  animation: floatY 8s ease-in-out infinite;
}
.eco-node:hover { transform: translateY(-6px) scale(1.05); box-shadow: 0 20px 50px rgba(155,133,255,0.2); z-index: 3; }
.eco-node span { font-size: 10px; color: var(--ink-mute); text-transform: uppercase; letter-spacing: 0.12em; }
.eco-node strong { font-size: 13px; font-weight: 700; color: var(--ink); }
.eco-node-1 { top: 8%; left: 50%; transform: translateX(-50%); animation-delay: 0s; }
.eco-node-2 { top: 44%; right: 2%; animation-delay: -2s; }
.eco-node-3 { bottom: 8%; right: 22%; animation-delay: -4s; }
.eco-node-4 { bottom: 8%; left: 22%; animation-delay: -6s; }
.eco-node-5 { top: 44%; left: 2%; animation-delay: -1s; }
.eco-node-1:hover { transform: translateX(-50%) translateY(-6px) scale(1.05); }

/* ---------- 12. WOA Assistant ---------- */
.section-woa {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center; overflow: hidden;
  padding: 130px 0;
  background: var(--pearl);
}
.section-woa-bg { position: absolute; inset: 0; z-index: 0; }
.section-woa-bg-img {
  position: absolute; left: 0; top: 0; width: 100%; height: 100%; max-width: none;
  object-fit: cover; object-position: center center;
  filter: saturate(1.05) contrast(1.02);
}
/* Overlay restored with higher transparency for clearer background */
.section-woa-bg-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(248,249,255,0.8) 0%, rgba(248,249,255,0.55) 30%, rgba(248,249,255,0.35) 55%, rgba(248,249,255,0.2) 100%);
}
.section-woa-bg-glow {
  position: absolute; right: 8%; top: 28%; width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(184,167,255,0.4), rgba(184,167,255,0) 70%);
  filter: blur(40px); animation: heroGlow 8s ease-in-out infinite; z-index: 0;
}
.section-woa-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; text-align: left; }
.woa-visual { position: relative; height: 440px; display: grid; place-items: center; overflow: hidden; }
.woa-orb { position: relative; width: 220px; height: 220px; border-radius: 50%; display: grid; place-items: center; background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.7), rgba(184,167,255,0.5) 55%, rgba(155,133,255,0.2) 100%); box-shadow: 0 30px 80px rgba(155,133,255,0.3), inset 0 0 0 1px rgba(255,255,255,0.6); animation: woaBreath 4s ease-in-out infinite; }
.woa-orb span { position: absolute; inset: 12px; border-radius: 50%; background: linear-gradient(135deg, rgba(255,255,255,0.5), transparent); filter: blur(8px); }
.woa-ring { position: absolute; width: 320px; height: 320px; border-radius: 50%; border: 1px solid rgba(184,167,255,0.3); animation: spin 30s linear infinite; }
.woa-ring::before { content: ''; position: absolute; top: -5px; left: 50%; width: 10px; height: 10px; border-radius: 50%; background: var(--grad-ai); box-shadow: 0 0 16px rgba(184,167,255,0.8); transform: translateX(-50%); }
.woa-avatar { position: absolute; font-size: 28px; font-weight: 800; letter-spacing: -0.02em; background: var(--grad-ai-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; z-index: 2; }
.woa-hint { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); font-size: 13px; color: var(--ink-soft); white-space: nowrap; background: rgba(255,255,255,0.6); padding: 8px 16px; border-radius: 999px; backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border: 1px solid rgba(255,255,255,0.7); }
.woa-text { text-align: left; position: relative; }
.woa-text::before { content: ''; position: absolute; inset: -30px -40px; background: radial-gradient(ellipse 70% 80% at center, rgba(248,249,255,0.4), transparent 70%); z-index: -1; border-radius: 32px; }
.woa-text .section-eyebrow { margin: 0 0 22px; }
.woa-text .section-title { text-align: left; }
.woa-desc { font-size: 16px; color: var(--ink-mute); line-height: 1.7; margin: 18px 0 24px; max-width: 480px; }
.woa-abilities { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.woa-abilities li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--ink-soft); font-weight: 500; }

/* ---------- 13. Final CTA ---------- */
.section-cta {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center; overflow: hidden;
  padding: 130px 0;
  background: var(--pearl);
}
.section-cta-bg { position: absolute; inset: 0; z-index: 0; }
.section-cta-bg-img {
  position: absolute; left: 0; top: 0; width: 100%; height: 100%; max-width: none;
  object-fit: cover; object-position: center center;
  filter: saturate(1.05) contrast(1.02);
}
/* Overlay removed: background fully visible */
.section-cta-bg-overlay { display: none; }
.section-cta .section-inner { position: relative; z-index: 2; }
.section-cta-inner { position: relative; padding: 80px 40px; text-align: center; overflow: hidden; background: rgba(255,255,255,0.7); }
.section-cta-glow { position: absolute; top: 50%; left: 50%; width: 600px; height: 600px; transform: translate(-50%,-50%); border-radius: 50%; background: radial-gradient(circle, rgba(184,167,255,0.3), transparent 65%); filter: blur(40px); z-index: 0; }
.section-cta-title { position: relative; z-index: 1; font-size: clamp(32px, 4.4vw, 58px); font-weight: 800; line-height: 1.1; letter-spacing: -0.035em; margin-bottom: 14px; }
.section-cta-sub { position: relative; z-index: 1; font-size: 16px; color: var(--ink-mute); margin-bottom: 32px; }
.section-cta .hero-cta { position: relative; z-index: 1; justify-content: center; margin-bottom: 0; }

/* ---------- 14. Footer ---------- */
.footer { position: relative; z-index: 2; background: linear-gradient(180deg, #fff 0%, var(--pearl) 100%); border-top: 1px solid var(--line-soft); padding: 60px 0 30px; }
.footer-inner { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 max(24px, calc((100% - var(--maxw))/2)); display: grid; grid-template-columns: 1.4fr 2fr; gap: 60px; margin-bottom: 30px; }
.footer-brand { display: flex; flex-direction: column; gap: 12px; }
.footer-logo { display: flex; align-items: center; gap: 8px; font-size: 18px; font-weight: 700; }
.footer-logo span { color: var(--ink-mute); font-weight: 500; }
.footer-tag { font-size: 13px; color: var(--ink-mute); max-width: 320px; }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h5 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--ink-mute); margin-bottom: 4px; }
.footer-col a { font-size: 14px; color: var(--ink-soft); transition: color 0.2s var(--ease); }
.footer-col a:hover { color: var(--ink); }
.footer-bottom { max-width: var(--maxw); margin: 0 auto; padding: 22px max(24px, calc((100% - var(--maxw))/2)) 0; border-top: 1px solid var(--line-soft); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 13px; color: var(--ink-mute); }
.footer-motto { font-style: italic; }

/* ---------- 14b. Pricing ---------- */
.section-pricing {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center; overflow: hidden;
  padding: 130px 0;
  background: var(--pearl);
}
.section-pricing-bg { position: absolute; inset: 0; z-index: 0; }
.section-pricing-bg-img {
  position: absolute; left: 0; top: 0; width: 100%; height: 100%; max-width: none;
  object-fit: cover; object-position: center center;
  filter: saturate(1.05) contrast(1.02);
}
/* Overlay restored with higher transparency for clearer background */
.section-pricing-bg-overlay {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 90% 80% at center, rgba(248,249,255,0.75) 0%, rgba(248,249,255,0.6) 55%, rgba(248,249,255,0.45) 100%);
}
.section-pricing-bg-glow {
  position: absolute; left: 50%; top: 40%; width: 500px; height: 500px; transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184,167,255,0.38), rgba(184,167,255,0) 70%);
  filter: blur(40px); animation: heroGlow 8s ease-in-out infinite; z-index: 0;
}
.section-pricing .section-inner { position: relative; z-index: 2; }
.section-pricing .pricing-grid { background: radial-gradient(ellipse 80% 70% at center, rgba(248,249,255,0.3), transparent 75%); padding: 40px 20px; border-radius: 32px; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 56px; align-items: stretch; }
.pricing-card { position: relative; text-align: left; padding: 36px 30px; display: flex; flex-direction: column; transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease); }
.pricing-card:hover { transform: translateY(-6px); box-shadow: 0 24px 60px rgba(99,90,180,0.18); }
.pricing-head { margin-bottom: 22px; }
.pricing-name { font-size: 14px; font-weight: 700; color: var(--ink-mute); text-transform: uppercase; letter-spacing: 0.14em; }
.pricing-price { display: flex; align-items: baseline; gap: 2px; margin: 12px 0 6px; }
.pricing-cur { font-size: 22px; font-weight: 600; color: var(--ink-soft); font-family: var(--font-mono); }
.pricing-amount { font-size: 52px; font-weight: 800; letter-spacing: -0.04em; color: var(--ink); line-height: 1; font-family: var(--font-mono); }
.pricing-per { font-size: 16px; font-weight: 500; color: var(--ink-mute); margin-left: 2px; font-family: var(--font-mono); }
.pricing-desc { font-size: 14px; color: var(--ink-mute); }
.pricing-btn { width: 100%; justify-content: center; margin-bottom: 24px; }
.pricing-features { display: flex; flex-direction: column; gap: 12px; }
.pricing-features li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--ink-soft); font-weight: 500; }
.pricing-popular { background: rgba(255,255,255,0.65); border: 1.5px solid rgba(184,167,255,0.5); box-shadow: 0 20px 60px rgba(155,133,255,0.22), 0 0 0 1px rgba(184,167,255,0.2); transform: scale(1.03); }
.pricing-popular:hover { transform: scale(1.03) translateY(-6px); box-shadow: 0 30px 70px rgba(155,133,255,0.3); }
.pricing-badge { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--grad-ai); color: #fff; font-size: 11px; font-weight: 700; padding: 5px 15px; border-radius: 999px; box-shadow: 0 4px 14px rgba(155,133,255,0.4); white-space: nowrap; letter-spacing: 0.04em; }

/* ---------- 15. Keyframes ---------- */
@keyframes heroBreathe { 0%,100% { transform: scale(1); } 50% { transform: scale(1.03); } }
@keyframes heroGlow { 0%,100% { opacity: 0.6; transform: scale(1); } 50% { opacity: 0.9; transform: scale(1.12); } }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(184,167,255,0.4); } 50% { box-shadow: 0 0 0 6px rgba(184,167,255,0); } }
@keyframes floatY { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
@keyframes progressLoad { 0% { width: 30%; } 100% { width: 92%; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes ecoPulse { 0%,100% { box-shadow: 0 20px 60px rgba(155,133,255,0.25), inset 0 0 0 1px rgba(255,255,255,0.6); } 50% { box-shadow: 0 20px 80px rgba(155,133,255,0.4), inset 0 0 0 1px rgba(255,255,255,0.8); } }
@keyframes woaBreath { 0%,100% { transform: scale(1); box-shadow: 0 30px 80px rgba(155,133,255,0.3), inset 0 0 0 1px rgba(255,255,255,0.6); } 50% { transform: scale(1.05); box-shadow: 0 30px 100px rgba(155,133,255,0.45), inset 0 0 0 1px rgba(255,255,255,0.8); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }

/* Hero entrance animation */
.hero .hero-eyebrow, .hero .hero-title, .hero .hero-subtitle-cn, .hero .hero-desc, .hero .hero-cta, .hero .hero-meta { animation: fadeUp 0.9s var(--ease) both; }
.hero .hero-title { animation-delay: 0.05s; }
.hero .hero-subtitle-cn { animation-delay: 0.15s; }
.hero .hero-desc { animation-delay: 0.25s; }
.hero .hero-cta { animation-delay: 0.35s; }
.hero .hero-meta { animation-delay: 0.45s; }
.float-card { animation: floatY 7s ease-in-out infinite, fadeUp 1s var(--ease) both; }

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

/* ---------- 15b. Large screens (2K / 4K ≥ 1920px) ---------- */
@media (min-width: 1920px) {
  :root { --maxw: 1900px; }
  .hero-title { font-size: clamp(44px, 5vw, 112px); }
  .hero-subtitle-cn { font-size: clamp(20px, 1.6vw, 34px); }
  .hero-desc { font-size: 18px; max-width: 540px; }
  .btn { padding: 16px 32px; font-size: 16px; }
  .section { padding: calc(var(--nav-h) + 160px) 0 160px; }
  .section-title { font-size: clamp(34px, 3.6vw, 84px); }
  .section-lead { font-size: clamp(16px, 1.2vw, 24px); max-width: 680px; }
  .hero-content { grid-template-columns: 1.1fr 1fr; gap: 60px; padding-bottom: 100px; }
  .hero-text { max-width: 700px; }
  .hero-visual { height: 720px; }
  .float-card { width: 260px; padding: 22px; }
  .float-card-2, .float-card-3 { width: 240px; }
  .float-card-icon { width: 38px; height: 38px; }
  .float-card-title { font-size: 16px; }
  .float-card-row, .float-card-mem { font-size: 14px; }
  .hero-bg-img { right: auto; }
  .hero-bg-glow { width: 560px; height: 560px; right: 6%; }
  .mockup { grid-template-columns: 240px 1fr 380px; min-height: 640px; }
  .eco-orbit { max-width: 880px; height: 620px; }
  .eco-ring-1 { width: 280px; height: 280px; }
  .eco-ring-2 { width: 460px; height: 460px; }
  .eco-ring-3 { width: 640px; height: 640px; }
  .eco-center { width: 200px; height: 200px; }
  .eco-center-name { font-size: 20px; }
  .woa-visual { height: 520px; }
  .woa-orb { width: 280px; height: 280px; }
  .woa-ring { width: 400px; height: 400px; }
  .section-woa-bg-glow { width: 560px; height: 560px; right: 6%; }
  .evolve-card { padding: 44px 38px; }
  .evolve-icon { width: 64px; height: 64px; }
  .evolve-card-title { font-size: 28px; }
  .section-evolve-bg-glow { width: 640px; height: 640px; }
  .section-meet-bg-glow { width: 680px; height: 680px; }
  .section-eco-bg-glow { width: 700px; height: 700px; }
  .section-pricing-bg-glow { width: 680px; height: 680px; }
  .section-cta-inner { padding: 100px 60px; }
}

/* ---------- 16. Responsive ---------- */
@media (max-width: 1080px) {
  .hero-content { grid-template-columns: 1fr; gap: 30px; }
  .hero-visual { height: 380px; }
  .hero-bg-img { opacity: 1; }
  .float-card { width: 200px !important; padding: 14px; }
  .evolve-grid { grid-template-columns: 1fr; max-width: 460px; margin-left: auto; margin-right: auto; }
  .section-evolve-bg-img { opacity: 1; }
  .section-evolve-bg-overlay { background: radial-gradient(ellipse at center, rgba(248,249,255,0.82) 0%, rgba(248,249,255,0.7) 60%, rgba(248,249,255,0.55) 100%); }
  .mockup { grid-template-columns: 1fr; min-height: auto; }
  .mockup-sidebar { border-right: none; border-bottom: 1px solid var(--line-soft); }
  .mockup-list { border-right: none; border-bottom: 1px solid var(--line-soft); }
  .section-woa-inner { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .woa-text { text-align: center; }
  .woa-text .section-title { text-align: center; }
  .woa-abilities { max-width: 420px; margin: 0 auto; }
  .section-woa-bg-img { opacity: 1; }
  .section-woa-bg-overlay { background: linear-gradient(180deg, rgba(248,249,255,0.82) 0%, rgba(248,249,255,0.6) 50%, rgba(248,249,255,0.45) 100%); }
  .section-meet-bg-img { opacity: 1; }
  .section-eco-bg-img { opacity: 1; }
  .section-pricing-bg-img { opacity: 1; }
  .section-cta-bg-img { opacity: 1; }
  .section-cta-bg-overlay { display: none; }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 440px; margin-left: auto; margin-right: auto; }
  .pricing-popular { transform: scale(1); }
  .pricing-popular:hover { transform: translateY(-6px); }
  /* 让 section 不再强制 100vh，内容自然撞开避免窗口缩放时空白/溢出 */
  .hero { min-height: auto; padding-bottom: 60px; }
  .section-evolve, .section-meet, .section-eco, .section-woa, .section-pricing, .section-cta { min-height: auto; padding: calc(var(--nav-h) + 100px) 0 100px; }
}

@media (max-width: 768px) {
  /* 移动端 hero 背景由 main.js 动态切换为 mo；此处仅隐藏紫色光晕让背景更干净 */
  .hero-bg-glow { display: none; }
  .nav-links { position: fixed; top: var(--nav-h); left: 0; right: 0; flex-direction: column; gap: 4px; padding: 16px 24px; background: rgba(248,249,255,0.95); backdrop-filter: blur(30px); -webkit-backdrop-filter: blur(30px); border-bottom: 1px solid var(--line-soft); transform: translateY(-12px); opacity: 0; visibility: hidden; transition: transform 0.4s var(--ease), opacity 0.3s var(--ease), visibility 0s linear 0.3s; align-items: stretch; }
  .nav-links.open { transform: none; opacity: 1; visibility: visible; transition: transform 0.4s var(--ease), opacity 0.3s var(--ease), visibility 0s; }
  .nav-link { text-align: center; padding: 12px; }
  .nav-toggle { display: flex; }
  .nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.active span:nth-child(2) { transform: translateY(-7px) rotate(-45deg); }
  .section { padding: calc(var(--nav-h) + 80px) 0 80px; }
  .hero { min-height: auto; padding-bottom: 60px; }
  .hero-visual { height: 320px; }
  .section-evolve, .section-meet, .section-eco, .section-woa, .section-pricing, .section-cta { min-height: auto; padding: 80px 0 60px; }
  .section-evolve-bg-img { opacity: 1; }
  .section-woa { min-height: auto; padding: 80px 0 60px; }
  .section-woa-bg-img { opacity: 1; }
  .section-meet { min-height: auto; padding: 80px 0 60px; }
  .section-meet-bg-img { opacity: 1; }
  .section-eco { min-height: auto; padding: 80px 0 60px; }
  .section-eco-bg-img { opacity: 1; }
  .section-pricing { min-height: auto; padding: 80px 0 60px; }
  .section-pricing-bg-img { opacity: 1; }
  .section-cta { min-height: auto; padding: 80px 0 60px; }
  .section-cta-bg-img { opacity: 1; }
  .float-card { display: none; }
  .float-card-1 { display: block; width: 180px !important; }
  .eco-orbit { height: 440px; }
  .eco-ring-3 { width: 440px; height: 440px; }
  .eco-ring-2 { width: 320px; height: 320px; }
  .eco-node { padding: 9px 13px; }
  .section-cta-inner { padding: 56px 24px; }
  .footer-cols { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
}

@media (max-width: 560px) {
  .hero-title { font-size: 40px; }
  .hero-subtitle-cn { font-size: 18px; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .btn { justify-content: center; }
  .float-card, .float-mini, .float-orb { display: none; }
  .hero-visual { height: 200px; }
  .section-title { font-size: 30px; }
  .evolve-card { padding: 28px 22px; }
  .mockup-ai { padding: 18px 16px; }
  .woa-abilities { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: 1fr; }
  .eco-orbit { height: 380px; transform: scale(0.85); }
}