:root {
  --primary: #1677ff;
  --primary-deep: #2f54eb;
  --cyan: #00b4ff;
  --purple: #6366f1;
  --orange: #fa8c16;
  --green: #10b981;
  --danger: #ef4444;
  --text-main: #1d2129;
  --text-sub: #4e5969;
  --text-muted: #86909c;
  --bg-page: #ffffff;
  --bg-soft: #f7f9fc;
  --border-light: #e5eaf3;
  --shadow-card: 0 12px 34px rgba(15, 23, 42, 0.06);
  --shadow-hover: 0 18px 42px rgba(22, 119, 255, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--text-main);
  background: var(--bg-page);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 按钮系统 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
  border-radius: 10px;
  padding: 10px 20px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.btn-lg {
  padding: 12px 26px;
  font-size: 15px;
  border-radius: 12px;
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
  color: #fff;
  box-shadow: 0 8px 20px rgba(22, 119, 255, 0.26);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(22, 119, 255, 0.34);
}

.btn-purple {
  background: linear-gradient(135deg, #6366f1 0%, #4338ca 100%);
  color: #fff;
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.28);
}

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

.btn-outline {
  background: #fff;
  color: var(--text-main);
  border-color: #d0d9e6;
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-outline-pill {
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 13px;
  background: #fff;
  border-color: #d6e0f0;
  color: var(--text-main);
}

.btn-outline-pill:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-primary-pill {
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 13px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--cyan) 100%);
  color: #fff;
  box-shadow: 0 6px 16px rgba(22, 119, 255, 0.22);
}

/* 顶部导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}

.header-inner {
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-text strong {
  font-size: 17px;
  font-weight: 800;
  color: #0f172a;
}

.brand-text small {
  font-size: 9.5px;
  letter-spacing: 0.9px;
  color: var(--primary);
  font-weight: 700;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-sub);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: color 0.15s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}

.nav-pill-new {
  font-size: 10px;
  font-weight: 700;
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  color: #fff;
  padding: 1px 6px;
  border-radius: 999px;
}

.nav-promo {
  color: #d97706;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* 右侧常驻悬浮 Dock */
.floating-dock {
  position: fixed;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 90;
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 8px 6px;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.1);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.dock-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 8px 8px;
  border-radius: 10px;
  font-size: 11px;
  color: var(--text-sub);
  font-weight: 600;
  transition: all 0.15s;
}

.dock-item:hover {
  background: #eff6ff;
  color: var(--primary);
}

.dock-emoji {
  font-size: 16px;
}

/* Hero 首屏 */
.hero-section {
  position: relative;
  overflow: hidden;
  padding: 56px 0 64px;
  background: linear-gradient(180deg, #eef4ff 0%, #f8fbff 55%, #ffffff 100%);
}

.hero-glow-left {
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(22, 119, 255, 0.14) 0%, transparent 70%);
  top: -160px;
  left: -120px;
  pointer-events: none;
}

.hero-glow-right {
  position: absolute;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 192, 255, 0.16) 0%, transparent 70%);
  bottom: -140px;
  right: -80px;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 44px;
  align-items: center;
}

.hero-carousel-wrap {
  min-height: 360px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hero-slide {
  display: none;
  animation: fadeSlide 0.35s ease;
}

.hero-slide.active {
  display: block;
}

@keyframes fadeSlide {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(22, 119, 255, 0.1);
  color: var(--primary-deep);
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 18px;
}

.eyebrow-purple {
  background: rgba(99, 102, 241, 0.1);
  color: #4f46e5;
}

.eyebrow-cyan {
  background: rgba(6, 182, 212, 0.12);
  color: #0284c7;
}

.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

.hero-title {
  font-size: 42px;
  line-height: 1.22;
  font-weight: 800;
  color: #0f172a;
  letter-spacing: -0.5px;
  margin-bottom: 18px;
}

.text-gradient {
  background: linear-gradient(120deg, #1677ff 0%, #00b4ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-purple {
  background: linear-gradient(120deg, #6366f1 0%, #0ea5e9 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 16px;
  color: var(--text-sub);
  max-width: 610px;
  margin-bottom: 26px;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.platform-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.os-chip {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid #dce5f2;
  color: #334155;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.carousel-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 26px;
}

.carousel-dots {
  display: flex;
  gap: 8px;
}

.dot {
  width: 22px;
  height: 6px;
  border-radius: 999px;
  border: none;
  background: #cbd5e1;
  cursor: pointer;
  transition: all 0.25s;
}

.dot.active {
  width: 44px;
  background: var(--primary);
}

.carousel-hint {
  font-size: 12px;
  color: var(--text-muted);
}

/* 右侧浮岛主卡 */
.hero-card {
  position: relative;
  background: #ffffff;
  border-radius: 22px;
  padding: 24px;
  border: 1px solid #e2eaf6;
  box-shadow: 0 22px 50px rgba(22, 119, 255, 0.12);
}

.hero-card-ribbon {
  background: linear-gradient(90deg, #fff7ed 0%, #eff6ff 100%);
  border: 1px solid #fed7aa;
  color: #9a3412;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 999px;
  text-align: center;
  margin-bottom: 18px;
}

.mascot-stage {
  position: relative;
  height: 136px;
  background: linear-gradient(135deg, #eff6ff 0%, #e0f2fe 100%);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  overflow: hidden;
  border: 1px solid #dbeafe;
}

.mascot-aura {
  position: absolute;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.35), transparent 70%);
}

.mascot-svg-wrap {
  position: relative;
  z-index: 2;
  animation: floatY 3.2s ease-in-out infinite;
}

@keyframes floatY {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-6px); }
}

.mascot-badge-float {
  position: absolute;
  z-index: 3;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
  border: 1px solid #dbeafe;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  color: #1e293b;
  display: flex;
  align-items: center;
  gap: 5px;
  box-shadow: 0 6px 14px rgba(15, 23, 42, 0.08);
}

.float-top {
  top: 10px;
  left: 12px;
}

.float-bottom {
  bottom: 10px;
  right: 12px;
}

.status-dot-green {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
}

.hero-card-title {
  font-size: 20px;
  font-weight: 800;
  text-align: center;
  color: #0f172a;
}

.highlight-italic {
  font-style: italic;
  color: var(--primary);
  font-size: 24px;
}

.hero-card-sub {
  text-align: center;
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 4px;
  margin-bottom: 16px;
}

.quick-env-box {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 16px;
}

.quick-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-sub);
  margin-bottom: 6px;
}

.quick-select {
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid #cbd5e1;
  font-size: 13px;
  background: #fff;
  color: var(--text-main);
  margin-bottom: 8px;
}

.quick-hint {
  font-size: 11.5px;
  color: var(--primary-deep);
  background: #eff6ff;
  padding: 6px 8px;
  border-radius: 6px;
}

.hero-card-meta {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-muted);
}

/* 指标背书条 */
.metrics-strip {
  background: #fff;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 28px 0;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.metric-val {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary-deep);
  line-height: 1.15;
}

.metric-unit {
  font-size: 16px;
  margin-left: 3px;
}

.metric-label {
  font-size: 13px;
  color: var(--text-sub);
  margin-top: 6px;
}

/* 通用区块 */
.section-block {
  padding: 76px 0;
}

.bg-soft {
  background: var(--bg-soft);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 42px;
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 15.5px;
  color: var(--text-sub);
}

.text-blue { color: var(--primary); }
.text-purple { color: var(--purple); }
.text-green { color: var(--green); }

/* 5-Tab 交互切换台 */
.feature-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 28px;
}

.feature-tab {
  background: #f1f5f9;
  color: var(--text-sub);
  border: none;
  border-radius: 999px;
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.feature-tab:hover {
  background: #e2e8f0;
  color: var(--text-main);
}

.feature-tab.active {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
  color: #fff;
  box-shadow: 0 8px 20px rgba(22, 119, 255, 0.25);
}

.bento-feature-card {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 22px;
  padding: 36px;
  box-shadow: var(--shadow-card);
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 36px;
  align-items: center;
}

.bento-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  background: #eff6ff;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.bento-left h3 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 12px;
  color: #0f172a;
}

.bento-left p {
  font-size: 14.5px;
  color: var(--text-sub);
  margin-bottom: 18px;
}

.bento-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}

.bento-points li {
  font-size: 14px;
  color: #1e293b;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.bento-points li::before {
  content: "✓";
  color: var(--green);
  font-weight: 800;
}

/* 控制台模拟视窗 */
.ui-mockup {
  background: #f4f6f9;
  border: 1px solid #dbe3ef;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.08);
}

.ui-mockup-topbar {
  background: #fff;
  border-bottom: 1px solid #e5eaf3;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
}

.mockup-dots {
  display: flex;
  gap: 6px;
}

.mockup-dots i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #cbd5e1;
  display: inline-block;
}

.mockup-title {
  font-weight: 700;
  color: #334155;
}

.mockup-status {
  color: var(--green);
  font-weight: 700;
  font-size: 11.5px;
}

.ui-mockup-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mock-row {
  background: #fff;
  border: 1px solid #e5eaf3;
  border-radius: 10px;
  padding: 12px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12.5px;
}

.mock-pill-blue {
  background: #eff6ff;
  color: var(--primary);
  padding: 3px 9px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 11px;
}

.mock-pill-green {
  background: #ecfdf5;
  color: #059669;
  padding: 3px 9px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 11px;
}

/* 平台墙 */
.featured-platforms {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.featured-plat-card {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 22px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s;
}

.featured-plat-card:hover {
  transform: translateY(-3px);
}

.plat-badge {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, #1677ff, #00b4ff);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
  flex-shrink: 0;
}

.badge-dark {
  background: linear-gradient(135deg, #0f172a, #334155);
}

.badge-orange {
  background: linear-gradient(135deg, #f97316, #ea580c);
}

.featured-plat-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.featured-plat-card p {
  font-size: 13px;
  color: var(--text-sub);
}

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

.wall-chip {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 10px;
  padding: 13px 16px;
  text-align: center;
  font-size: 13.5px;
  font-weight: 600;
  color: #334155;
  transition: all 0.15s;
}

.wall-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.wall-chip-plus {
  background: #eff6ff;
  border-color: #bfdbfe;
  color: var(--primary-deep);
}

/* 基础安全网格 */
.security-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.sec-card {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 22px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
  transition: all 0.2s;
}

.sec-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: #c7dcff;
}

.sec-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: #eff6ff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 14px;
}

.sec-card h3 {
  font-size: 15.5px;
  font-weight: 700;
  margin-bottom: 8px;
}

.sec-card p {
  font-size: 13px;
  color: var(--text-sub);
}

/* 安全管家区块 */
.bg-butler {
  background: linear-gradient(180deg, #f5f8ff 0%, #ffffff 100%);
}

.butler-tag {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  color: #4f46e5;
  background: #eef2ff;
  border: 1px solid #c7d2fe;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.butler-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.butler-stat-card {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 22px 24px;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.butler-num {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 6px;
}

.butler-desc {
  font-size: 13px;
  color: var(--text-sub);
}

.butler-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: center;
}

.butler-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.butler-item {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 14px;
  padding: 16px 20px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.butler-idx {
  font-size: 13px;
  font-weight: 800;
  color: var(--primary);
  background: #eff6ff;
  padding: 4px 9px;
  border-radius: 8px;
  flex-shrink: 0;
}

.butler-item h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}

.butler-item p {
  font-size: 13px;
  color: var(--text-sub);
}

.butler-preview {
  background: #0f172a;
  border-radius: 20px;
  padding: 28px;
  box-shadow: 0 22px 44px rgba(15, 23, 42, 0.25);
}

.block-screen-demo {
  background: #1e293b;
  border: 1px solid #ef4444;
  border-radius: 16px;
  padding: 28px 24px;
  text-align: center;
  color: #f8fafc;
}

.block-screen-icon {
  font-size: 40px;
  margin-bottom: 10px;
}

.block-screen-demo h3 {
  font-size: 17px;
  color: #f87171;
  margin-bottom: 8px;
}

.block-screen-demo p {
  font-size: 12.5px;
  color: #cbd5e1;
  margin-bottom: 16px;
}

.block-rule-box {
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 10px;
  padding: 12px;
  font-size: 12px;
  color: #94a3b8;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.tag-red {
  color: #fca5a5;
  font-weight: 700;
}

.block-btn-demo {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 8px 20px;
  border-radius: 8px;
  font-size: 12.5px;
  font-weight: 600;
}

/* 三步上手 */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.step-card {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 18px;
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
}

.step-badge {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 0.6px;
  color: var(--primary);
  background: #eff6ff;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.step-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 13.5px;
  color: var(--text-sub);
}

/* 下载中心 */
.download-banner {
  background: linear-gradient(135deg, #1677ff 0%, #1d4ed8 60%, #0f172a 100%);
  color: #fff;
  padding: 68px 0;
}

.download-inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 36px;
  align-items: center;
}

.dl-pill {
  display: inline-block;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 14px;
}

.download-left h2 {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 12px;
}

.download-left p {
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.85);
}

.download-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.dl-card {
  background: #fff;
  color: var(--text-main);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.22);
}

.dl-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.dl-os {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary-deep);
}

.dl-size {
  font-size: 12px;
  color: var(--text-muted);
  font-family: monospace;
}

.dl-filename {
  font-size: 14px;
  font-weight: 700;
  font-family: monospace;
  margin-bottom: 8px;
  color: #0f172a;
}

.dl-card p {
  font-size: 12.5px;
  color: var(--text-sub);
  margin-bottom: 14px;
  min-height: 38px;
}

/* 深色页脚 */
.site-footer {
  background: #0b1120;
  color: #94a3b8;
  padding: 54px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.14);
}

.footer-logo-row {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-size: 18px;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 13px;
  line-height: 1.7;
  max-width: 300px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col h4 {
  color: #f8fafc;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 13px;
  color: #94a3b8;
  transition: color 0.15s;
}

.footer-col a:hover {
  color: #38bdf8;
}

.footer-bottom {
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: #64748b;
}

/* 弹窗 */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-backdrop[hidden] {
  display: none;
}

.modal-card {
  background: #fff;
  border-radius: 16px;
  width: 100%;
  max-width: 480px;
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.22);
  overflow: hidden;
}

.modal-top {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-close {
  border: none;
  background: none;
  font-size: 22px;
  cursor: pointer;
  color: var(--text-muted);
}

.modal-body {
  padding: 20px;
  font-size: 13.5px;
  color: var(--text-sub);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal-path-box {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  padding: 12px;
  word-break: break-all;
}

.modal-path-box code {
  color: var(--primary-deep);
  font-family: monospace;
  font-size: 12.5px;
}

.modal-tip {
  font-size: 12px;
  color: var(--text-muted);
}

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border-light);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* 响应式适配 */
@media (max-width: 1024px) {
  .main-nav,
  .floating-dock {
    display: none;
  }
  .hero-grid,
  .bento-feature-card,
  .butler-grid,
  .download-inner {
    grid-template-columns: 1fr;
  }
  .metrics-grid,
  .featured-platforms,
  .platform-wall,
  .security-cards-grid,
  .butler-stats-row,
  .steps-grid,
  .download-cards,
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 30px;
  }
  .metrics-grid,
  .featured-platforms,
  .platform-wall,
  .security-cards-grid,
  .butler-stats-row,
  .steps-grid,
  .download-cards,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }
}

/* ==================== 紫鸟同款透明定价 & 对比表样式 ==================== */
.pricing-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 28px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 12px 18px;
}

.pricing-toggle-group,
.pricing-zone-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.pricing-toggle,
.zone-btn {
  padding: 8px 16px;
  border-radius: 9px;
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: #334155;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.16s;
}

.pricing-toggle.active,
.zone-btn.active {
  background: #1677ff;
  border-color: #1677ff;
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(22, 119, 255, 0.28);
}

.discount-badge {
  background: #f59e0b;
  color: #fff;
  font-size: 10.5px;
  padding: 1px 6px;
  border-radius: 99px;
  margin-left: 4px;
}

.pricing-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 36px;
}

.price-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.18s, box-shadow 0.18s;
}

.price-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
}

.price-card-popular {
  border: 2px solid #1677ff;
  box-shadow: 0 14px 34px rgba(22, 119, 255, 0.12);
}

.price-card-gold {
  border: 2px solid #f59e0b;
  background: linear-gradient(180deg, #fffbeb 0%, #ffffff 30%);
}

.popular-ribbon,
.gold-ribbon {
  position: absolute;
  top: -12px;
  right: 16px;
  background: linear-gradient(135deg, #1677ff 0%, #00b4ff 100%);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 99px;
}

.gold-ribbon {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.price-card-tag {
  font-size: 11.5px;
  font-weight: 700;
  color: #1677ff;
  margin-bottom: 6px;
}

.price-card h3 {
  font-size: 19px;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 8px;
}

.price-card-desc {
  font-size: 12.5px;
  color: #64748b;
  line-height: 1.55;
  min-height: 56px;
}

.price-num-box {
  margin: 16px 0 8px 0;
  display: flex;
  align-items: baseline;
  gap: 3px;
}

.price-currency {
  font-size: 18px;
  font-weight: 700;
  color: #0f172a;
}

.price-val {
  font-size: 36px;
  font-weight: 900;
  color: #0f172a;
  line-height: 1;
}

.price-unit {
  font-size: 12.5px;
  color: #64748b;
}

.price-promo-line {
  font-size: 12px;
  font-weight: 600;
  color: #059669;
  background: #ecfdf5;
  padding: 5px 10px;
  border-radius: 7px;
  margin-bottom: 16px;
}

.price-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
  font-size: 12.5px;
  color: #334155;
  margin-bottom: 20px;
  flex: 1;
}

.compare-table-wrap {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
}

.compare-header {
  padding: 18px 24px;
  background: linear-gradient(90deg, #0f172a 0%, #1e293b 100%);
  color: #ffffff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.compare-header h3 { font-size: 16px; font-weight: 800; }
.compare-header span { font-size: 12.5px; color: #94a3b8; }

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

.compare-table th,
.compare-table td {
  padding: 14px 20px;
  text-align: left;
  border-bottom: 1px solid #f1f5f9;
}

.compare-table th {
  background: #f8fafc;
  font-weight: 700;
  color: #334155;
}

.compare-table .col-highlight {
  background: #f0f7ff;
  color: #0f172a;
}

.cmp-good {
  color: #059669;
  font-weight: 700;
}

@media (max-width: 1024px) {
  .pricing-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .pricing-cards-grid {
    grid-template-columns: 1fr;
  }
}