/* ============ 基础 ============ */
:root {
  --bg: #070b15;
  --bg-soft: #0b1222;
  --card: rgba(18, 27, 48, 0.72);
  --card-solid: #101a30;
  --border: rgba(148, 184, 255, 0.13);
  --border-strong: rgba(34, 211, 238, 0.45);
  --text: #e9eef8;
  --muted: #9aa7c2;
  --cyan: #22d3ee;
  --blue: #3b82f6;
  --purple: #a855f7;
  --pink: #ec4899;
  --red: #f43f5e;
  --grad: linear-gradient(92deg, #22d3ee 0%, #60a5fa 45%, #a855f7 100%);
  --grad-soft: linear-gradient(120deg, rgba(34,211,238,.14), rgba(168,85,247,.14));
  --radius: 16px;
  --shadow: 0 24px 60px rgba(2, 8, 26, 0.55);
  --glow: 0 0 40px rgba(34, 211, 238, 0.22);
  --font-display: "Bahnschrift", "DIN Alternate", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body.menu-open { overflow: hidden; }

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

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

ul { list-style: none; }

button { font-family: inherit; cursor: pointer; }

.container {
  width: min(1160px, 92%);
  margin-inline: auto;
}

/* ============ 背景装饰 ============ */
.bg-decor {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  overflow: hidden;
}

.grid-layer {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 65% at 50% 0%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 65% at 50% 0%, #000 30%, transparent 78%);
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.5;
  animation: orb-float 14s ease-in-out infinite alternate;
}

.orb-1 {
  width: 520px; height: 520px;
  top: -180px; left: -120px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.5), transparent 65%);
}

.orb-2 {
  width: 460px; height: 460px;
  top: 120px; right: -160px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.45), transparent 65%);
  animation-delay: -5s;
}

.orb-3 {
  width: 420px; height: 420px;
  bottom: -140px; left: 30%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.35), transparent 65%);
  animation-delay: -9s;
}

@keyframes orb-float {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(40px, 30px, 0) scale(1.12); }
}

.stars {
  position: absolute;
  inset: 0;
}

.stars i {
  position: absolute;
  width: 2px; height: 2px;
  border-radius: 50%;
  background: #cde9ff;
  opacity: 0.5;
  animation: twinkle 3s ease-in-out infinite;
}

@keyframes twinkle {
  0%, 100% { opacity: 0.15; transform: scale(0.8); }
  50% { opacity: 0.9; transform: scale(1.25); }
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.2;
  border: 1px solid transparent;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease, border-color .25s ease;
}

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

.btn-primary {
  background: var(--grad);
  color: #04101f;
  box-shadow: 0 10px 30px rgba(34, 211, 238, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(34, 211, 238, 0.45);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--border-strong);
  background: rgba(34, 211, 238, 0.08);
  transform: translateY(-3px);
}

.btn-light {
  background: #fff;
  color: #0a1428;
  box-shadow: 0 10px 34px rgba(255, 255, 255, 0.22);
}

.btn-light:hover { transform: translateY(-3px); box-shadow: 0 16px 44px rgba(255, 255, 255, 0.3); }

.btn-ghost-light {
  border-color: rgba(255, 255, 255, 0.35);
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-3px);
}

.btn-sm { padding: 9px 20px; font-size: 14px; }
.btn-lg { padding: 15px 34px; font-size: 16px; }
.btn-block { width: 100%; }

/* ============ 导航 ============ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  transition: padding .3s ease, background .3s ease, box-shadow .3s ease, backdrop-filter .3s ease;
  background: rgba(7, 11, 21, 0.35);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  padding: 10px 0;
  background: rgba(7, 11, 21, 0.82);
  border-bottom-color: var(--border);
  box-shadow: 0 10px 40px rgba(2, 8, 26, 0.45);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  border-radius: 11px;
  background: var(--grad);
  color: #04101f;
  box-shadow: 0 6px 20px rgba(34, 211, 238, 0.4);
}

.logo-icon svg { width: 22px; height: 22px; }

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 15px;
  color: var(--muted);
  transition: color .2s ease;
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 2px;
  border-radius: 2px;
  background: var(--grad);
  transition: width .25s ease;
}

.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

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

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px; height: 42px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
}

.hamburger span {
  display: block;
  width: 100%; height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: transform .3s ease, opacity .3s ease;
}

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

/* ============ 首屏 ============ */
.hero {
  position: relative;
  padding: 190px 0 90px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--grad-soft);
  color: #cfeaff;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 30px;
}

.pulse-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.55); }
  70% { box-shadow: 0 0 0 9px rgba(52, 211, 153, 0); }
  100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(46px, 8vw, 84px);
  line-height: 1.18;
  letter-spacing: 2px;
  text-shadow: 0 10px 50px rgba(34, 211, 238, 0.18);
}

.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 6px 24px rgba(96, 165, 250, 0.35));
}

.hero-sub {
  margin: 26px auto 38px;
  max-width: 640px;
  color: var(--muted);
  font-size: 17px;
}

.hero-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 70px;
}

.stat-item {
  min-width: 150px;
  padding: 20px 26px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform .25s ease, border-color .25s ease;
}

.stat-item:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
}

.stat-num {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-unit {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--cyan);
  margin-left: 2px;
}

.stat-label {
  margin-top: 4px;
  font-size: 13px;
  color: var(--muted);
}

/* ============ 游戏滚动条 ============ */
.ticker {
  overflow: hidden;
  padding: 22px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(13, 20, 38, 0.55);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}

.ticker-track {
  display: flex;
  width: max-content;
  animation: ticker 32s linear infinite;
}

.ticker-track span {
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 2px;
  color: rgba(201, 218, 245, 0.55);
  white-space: nowrap;
}

.ticker-track span::after {
  content: "✦";
  margin-left: 44px;
  color: rgba(34, 211, 238, 0.5);
}

@keyframes ticker {
  to { transform: translateX(-50%); }
}

/* ============ 通用区块 ============ */
.section {
  padding: 110px 0;
}

.section-alt {
  background: linear-gradient(180deg, rgba(13, 20, 38, 0.4), rgba(13, 20, 38, 0.75));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}

.section-tag {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--cyan);
  display: block;
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: clamp(28px, 4.4vw, 40px);
  font-weight: 800;
  line-height: 1.3;
}

.section-head p {
  margin-top: 14px;
  color: var(--muted);
  font-size: 16px;
}

/* ============ 功能卡片 ============ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 34px 30px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad);
  opacity: 0;
  transition: opacity .3s ease;
}

.feature-card:hover {
  transform: translateY(-7px);
  border-color: var(--border-strong);
  box-shadow: var(--glow);
}

.feature-card:hover::before { opacity: 1; }

.icon-wrap {
  width: 58px; height: 58px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-soft);
  border: 1px solid rgba(34, 211, 238, 0.3);
  color: var(--cyan);
  margin-bottom: 22px;
  transition: transform .3s ease, background .3s ease, color .3s ease;
}

.icon-wrap svg { width: 28px; height: 28px; }

.feature-card:hover .icon-wrap {
  background: var(--grad);
  color: #04101f;
  transform: scale(1.08);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--muted);
  font-size: 14.5px;
}

/* ============ 使用步骤 ============ */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  position: relative;
}

.steps::before {
  content: "";
  position: absolute;
  top: 60px; left: 18%; right: 18%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.4), transparent);
}

.step {
  text-align: center;
  padding: 20px 18px;
  position: relative;
}

.step-num {
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: 72px;
  font-weight: 900;
  color: rgba(148, 184, 255, 0.08);
  line-height: 1;
  z-index: 0;
}

.step-icon {
  position: relative;
  z-index: 1;
  width: 64px; height: 64px;
  margin: 8px auto 24px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--card);
  border: 1px solid var(--border-strong);
  color: var(--cyan);
  box-shadow: 0 12px 34px rgba(34, 211, 238, 0.18);
}

.step-icon svg { width: 30px; height: 30px; }

.step h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 14.5px; }

/* ============ 效果对比 ============ */
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.compare-card {
  padding: 34px 30px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.compare-card-win {
  border-color: rgba(34, 211, 238, 0.35);
  box-shadow: var(--glow);
}

.compare-tag {
  align-self: flex-start;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  letter-spacing: 1px;
}

.compare-tag-before { background: rgba(244, 63, 94, 0.12); color: #fb7185; border: 1px solid rgba(244, 63, 94, 0.3); }
.compare-tag-after { background: rgba(34, 211, 238, 0.12); color: #22d3ee; border: 1px solid rgba(34, 211, 238, 0.35); }

.bar-row {
  display: grid;
  grid-template-columns: 76px 1fr 62px;
  align-items: center;
  gap: 14px;
}

.bar-label { font-size: 14px; color: var(--muted); }
.bar-value { font-family: var(--font-display); font-size: 15px; font-weight: 700; text-align: right; }
.compare-card .bar-value { color: #fb7185; }
.compare-card-win .bar-value { color: #22d3ee; }

.bar-track {
  height: 10px;
  border-radius: 999px;
  background: rgba(148, 184, 255, 0.08);
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 999px;
  width: 0;
  transition: width 1.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.bar-red { background: linear-gradient(90deg, #f43f5e, #fb923c); }
.bar-cyan { background: linear-gradient(90deg, #22d3ee, #60a5fa); box-shadow: 0 0 14px rgba(34, 211, 238, 0.55); }

.reveal.visible .bar-fill { width: var(--target); }

/* ============ 价格方案 ============ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.price-card {
  position: relative;
  padding: 38px 32px;
  border-radius: 20px;
  background: var(--card);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}

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

.price-hot {
  background: linear-gradient(180deg, rgba(34, 211, 238, 0.1), rgba(168, 85, 247, 0.08)), var(--card);
  border: 1px solid rgba(34, 211, 238, 0.45);
  box-shadow: 0 20px 60px rgba(34, 211, 238, 0.14);
}

.hot-badge {
  position: absolute;
  top: -14px; left: 50%;
  transform: translateX(-50%);
  padding: 6px 18px;
  border-radius: 999px;
  background: var(--grad);
  color: #04101f;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  box-shadow: 0 8px 24px rgba(34, 211, 238, 0.4);
}

.price-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 12px;
}

.price-amount {
  font-family: var(--font-display);
  font-size: 52px;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 8px;
}

.price-currency { font-size: 24px; vertical-align: 18px; margin-right: 2px; }
.price-period { font-size: 15px; font-weight: 500; color: var(--muted); font-family: var(--font-body); }

.price-desc { color: var(--muted); font-size: 14px; margin-bottom: 26px; }

.price-feats {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  flex: 1;
}

.price-feats li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14.5px;
  color: #c8d4ea;
}

.price-feats li::before {
  content: "";
  width: 18px; height: 18px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--grad-soft);
  border: 1px solid rgba(34, 211, 238, 0.4);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2322d3ee' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");
  background-size: 10px;
  background-position: center;
  background-repeat: no-repeat;
}

.pricing-note {
  text-align: center;
  margin-top: 30px;
  color: var(--muted);
  font-size: 14px;
}

/* ============ 玩家评价 ============ */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  padding: 30px 28px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: transform .3s ease, border-color .3s ease;
}

.testimonial-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-strong);
}

.stars {
  color: #fbbf24;
  font-size: 16px;
  letter-spacing: 3px;
  text-shadow: 0 0 18px rgba(251, 191, 36, 0.35);
}

.testimonial-card > p {
  color: #c8d4ea;
  font-size: 14.5px;
  flex: 1;
}

.testimonial-user {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.testimonial-user strong { display: block; font-size: 15px; }
.testimonial-user span { font-size: 13px; color: var(--muted); }

.avatar {
  width: 46px; height: 46px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  font-weight: 700;
  color: #04101f;
  flex-shrink: 0;
}

.avatar-1 { background: linear-gradient(135deg, #22d3ee, #3b82f6); }
.avatar-2 { background: linear-gradient(135deg, #a855f7, #ec4899); }
.avatar-3 { background: linear-gradient(135deg, #f59e0b, #f43f5e); }

/* ============ 常见问题 ============ */
.faq-list {
  max-width: 780px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card);
  overflow: hidden;
  transition: border-color .3s ease, box-shadow .3s ease;
}

.faq-item.open {
  border-color: var(--border-strong);
  box-shadow: 0 12px 34px rgba(34, 211, 238, 0.1);
}

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 24px;
  background: none;
  border: none;
  color: var(--text);
  font-size: 15.5px;
  font-weight: 600;
  text-align: left;
}

.faq-q::after {
  content: "+";
  flex-shrink: 0;
  width: 30px; height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-soft);
  border: 1px solid rgba(34, 211, 238, 0.35);
  color: var(--cyan);
  font-size: 18px;
  font-weight: 400;
  transition: transform .3s ease, background .3s ease, color .3s ease;
}

.faq-item.open .faq-q::after {
  transform: rotate(45deg);
  background: var(--grad);
  color: #04101f;
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}

.faq-a p {
  padding: 0 24px 22px;
  color: var(--muted);
  font-size: 14.5px;
}

/* ============ 行动号召 ============ */
.cta { padding: 100px 0; }

.cta-inner {
  position: relative;
  text-align: center;
  padding: 72px 36px;
  border-radius: 24px;
  border: 1px solid rgba(34, 211, 238, 0.3);
  background:
    radial-gradient(ellipse 70% 120% at 50% 0%, rgba(34, 211, 238, 0.18), transparent 60%),
    radial-gradient(ellipse 60% 120% at 85% 100%, rgba(168, 85, 247, 0.18), transparent 60%),
    linear-gradient(180deg, rgba(16, 26, 48, 0.85), rgba(11, 18, 34, 0.9));
  overflow: hidden;
}

.cta-inner::before {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 520px; height: 2px;
  background: var(--grad);
  box-shadow: 0 0 30px rgba(34, 211, 238, 0.8);
}

.cta-inner h2 {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-inner p {
  color: var(--muted);
  font-size: 16px;
  margin-bottom: 34px;
}

.cta-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ============ 页脚 ============ */
.site-footer {
  border-top: 1px solid var(--border);
  background: rgba(7, 11, 21, 0.85);
  padding: 64px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 46px;
}

.footer-brand p {
  margin-top: 16px;
  color: var(--muted);
  font-size: 14px;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-col a {
  display: block;
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 12px;
  transition: color .2s ease;
}

.footer-col a:hover { color: var(--cyan); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
}

/* ============ 在线客服 ============ */
.float-chat {
  position: fixed;
  right: 26px; bottom: 26px;
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  border: 1px solid rgba(34, 211, 238, 0.45);
  background: linear-gradient(135deg, rgba(16, 26, 48, 0.95), rgba(12, 20, 38, 0.95));
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 14px 40px rgba(2, 8, 26, 0.55);
  transition: transform .25s ease, box-shadow .25s ease;
}

.float-chat svg { width: 20px; height: 20px; color: var(--cyan); }

.float-chat:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(34, 211, 238, 0.25);
}

.chat-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6);
  animation: pulse 2s infinite;
}

/* ============ 滚动显现动画 ============ */
.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity .7s ease, transform .7s ease;
}

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

.reveal:nth-child(2) { transition-delay: .08s; }
.reveal:nth-child(3) { transition-delay: .16s; }
.reveal:nth-child(4) { transition-delay: .24s; }
.reveal:nth-child(5) { transition-delay: .32s; }
.reveal:nth-child(6) { transition-delay: .4s; }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .features-grid, .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .price-card { padding: 34px 22px; }
}

@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    width: min(320px, 82vw);
    height: 100vh;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
    padding: 30px 40px;
    background: rgba(9, 14, 26, 0.97);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--border);
    transition: right .35s ease;
  }

  .nav-links.open { right: 0; }

  .nav-links a { font-size: 18px; padding: 12px 0; }

  .hamburger { display: flex; }

  .nav-actions .btn { display: none; }

  .hero { padding: 150px 0 70px; }
  .hero-stats { gap: 12px; }
  .stat-item { min-width: 130px; padding: 16px 18px; }

  .steps { grid-template-columns: 1fr; gap: 10px; }
  .steps::before { display: none; }

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

  .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin-inline: auto; }
  .price-hot { transform: none; }

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

@media (max-width: 620px) {
  .section { padding: 80px 0; }

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

  .hero-title { letter-spacing: 1px; }
  .hero-badge { font-size: 12.5px; padding: 8px 14px; }
  .hero-btns .btn { width: 100%; max-width: 320px; }

  .stat-item { min-width: 44%; }

  .bar-row { grid-template-columns: 64px 1fr 54px; gap: 10px; }
  .compare-card { padding: 26px 20px; }

  .cta-inner { padding: 54px 22px; }

  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .float-chat .chat-label { display: none; }
  .float-chat { padding: 14px; }
}

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

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

/* ============ 训练界面展示 ============ */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.showcase-card {
  display: flex;
  flex-direction: column;
  border-radius: 20px;
  background: var(--card);
  border: 1px solid var(--border);
  overflow: hidden;
  backdrop-filter: blur(10px);
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.showcase-card:hover {
  transform: translateY(-7px);
  border-color: var(--border-strong);
  box-shadow: var(--glow);
}

.showcase-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #0a1224;
  border-bottom: 1px solid var(--border);
}

.showcase-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform .6s ease;
}

.showcase-card:hover .showcase-media img { transform: scale(1.045); }

.showcase-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 62%, rgba(7, 11, 21, 0.38));
}

.showcase-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 1;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(7, 11, 21, 0.74);
  border: 1px solid var(--border-strong);
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 800;
  backdrop-filter: blur(8px);
}

.showcase-body {
  display: flex;
  flex-direction: column;
  gap: 13px;
  padding: 26px 24px 28px;
  flex: 1;
}

.showcase-body h3 { font-size: 20px; font-weight: 700; }

.showcase-body > p {
  color: var(--muted);
  font-size: 14.5px;
}

.showcase-feats {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
}

.showcase-feats li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #c8d4ea;
  font-size: 13.5px;
}

.showcase-feats li::before {
  content: "";
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--grad-soft);
  border: 1px solid rgba(34, 211, 238, 0.4);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2322d3ee' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");
  background-size: 9px;
  background-position: center;
  background-repeat: no-repeat;
}

@media (max-width: 1024px) {
  .showcase-grid { grid-template-columns: repeat(2, 1fr); }
  .showcase-card:last-child { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  .showcase-grid { grid-template-columns: 1fr; }
  .showcase-card:last-child { grid-column: auto; }
}

/* ============ 首屏按钮 ============ */
.btn-buy {
  position: relative;
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  background: linear-gradient(110deg, #22d3ee, #60a5fa, #a855f7, #22d3ee);
  background-size: 300% 100%;
  animation: btn-flow 5s linear infinite;
  color: #04101f;
  font-weight: 800;
  letter-spacing: 2px;
  box-shadow: 0 14px 38px rgba(34, 211, 238, 0.35), inset 0 0 0 1px rgba(255, 255, 255, 0.28);
}

.btn-buy::before {
  content: "";
  position: absolute;
  top: 0; left: -90%;
  width: 55%; height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.55), transparent);
  transform: skewX(-22deg);
  transition: left 0.6s ease;
}

.btn-buy:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 20px 52px rgba(34, 211, 238, 0.55), inset 0 0 0 1px rgba(255, 255, 255, 0.35);
}

.btn-buy:hover::before { left: 130%; }

.btn-buy svg { transition: transform 0.3s ease; }
.btn-buy:hover svg { transform: translateX(4px); }

@keyframes btn-flow {
  0% { background-position: 0% 50%; }
  100% { background-position: 300% 50%; }
}

.btn-download {
  position: relative;
  border: 1.5px solid transparent;
  background:
    linear-gradient(rgba(13, 18, 34, 0.92), rgba(13, 18, 34, 0.92)) padding-box,
    linear-gradient(120deg, rgba(34, 211, 238, 0.9), rgba(168, 85, 247, 0.9)) border-box;
  color: var(--text);
  font-weight: 700;
  letter-spacing: 2px;
  box-shadow: 0 10px 30px rgba(2, 8, 26, 0.5);
  transition: transform 0.3s ease, box-shadow 0.3s ease, filter 0.3s ease;
}

.btn-download:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 16px 44px rgba(34, 211, 238, 0.3), inset 0 0 26px rgba(34, 211, 238, 0.12);
  filter: brightness(1.08);
}

.btn-download svg { transition: transform 0.3s ease; }
.btn-download:hover svg { transform: translateY(3px); }