/* ==========================================================================
   宝云 BaoYun (baoyun.wiki) — Titanium Pro · 钛金专业版设计系统
   背景：钛灰金属渐变与柔和工作室灯光
   动效：金属高光缓慢移动
   适配：桌面端、平板与移动端全面响应式
   ========================================================================== */

:root {
  /* 钛金深空灰阶调色板 */
  --bg-void: #08090b;
  --bg-titanium-deep: #0d0f13;
  --bg-titanium-mid: #14171d;
  --bg-titanium-surface: #191d24;
  --bg-titanium-elevated: #20252e;
  --bg-glass: rgba(20, 23, 29, 0.72);

  /* 钛金属色与香槟金高光 */
  --titanium-100: #f6f7f9;
  --titanium-200: #e2e5eb;
  --titanium-300: #c2c8d2;
  --titanium-400: #9098a6;
  --titanium-500: #636b78;
  --champagne: #e3d3ba;
  --champagne-soft: rgba(227, 211, 186, 0.14);
  --champagne-border: rgba(227, 211, 186, 0.34);

  /* 状态信号色 */
  --emerald: #34d399;
  --emerald-soft: rgba(52, 211, 153, 0.12);

  /* 边框与高光 */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-titanium: rgba(226, 229, 235, 0.16);
  --border-bright: rgba(255, 255, 255, 0.28);

  /* 排版字体栈（无需外部阻塞字体，保证中文与英文极速首屏 LCP） */
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "SF Pro Display", "PingFang SC", "Microsoft YaHei UI", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  /* 圆角与容器 */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --container-max: 1200px;
  --nav-height: 72px;

  /* 阴影 */
  --shadow-studio: 0 30px 80px -20px rgba(0, 0, 0, 0.85), 0 0 1px rgba(255, 255, 255, 0.22);
  --shadow-card: 0 18px 46px -18px rgba(0, 0, 0, 0.72);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  background-color: var(--bg-void);
  color: var(--titanium-100);
  max-width: 100%;
  overflow-x: clip;
}

body {
  margin: 0;
  width: 100%;
  max-width: 100%;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--titanium-200);
  background:
    radial-gradient(ellipse 85% 48% at 50% -6%, rgba(226, 232, 240, 0.13) 0%, rgba(227, 211, 186, 0.05) 38%, transparent 72%),
    radial-gradient(circle at 15% 22%, rgba(255, 255, 255, 0.04) 0%, transparent 45%),
    radial-gradient(circle at 85% 32%, rgba(227, 211, 186, 0.04) 0%, transparent 48%),
    linear-gradient(180deg, #090a0d 0%, #101217 35%, #13161c 68%, #0b0d11 100%);
  background-attachment: fixed;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 细微拉丝钛金纹理与工作室柔和光晕层 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image:
    repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.008) 0px,
      rgba(255, 255, 255, 0.008) 1px,
      transparent 1px,
      transparent 3px
    ),
    radial-gradient(ellipse 60% 34% at 50% 0%, rgba(255, 255, 255, 0.07), transparent 70%);
}

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

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

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

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

/* 容器与区块基础 */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 88px 0;
  position: relative;
}

.section--tight {
  padding: 64px 0;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 52px;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--champagne);
  background: linear-gradient(180deg, rgba(227, 211, 186, 0.12), rgba(227, 211, 186, 0.03));
  border: 1px solid var(--champagne-border);
  margin-bottom: 18px;
}

.section-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.6vw, 2.75rem);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.02em;
  background: linear-gradient(115deg, #ffffff 0%, #d4d8e0 42%, #ffffff 68%, #b3bac6 100%);
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: titaniumSheen 12s ease-in-out infinite;
}

.section-subtitle {
  margin: 0;
  font-size: clamp(0.95rem, 1.5vw, 1.08rem);
  color: var(--titanium-300);
  line-height: 1.75;
}

/* ==========================================================================
   动效：金属高光缓慢移动
   ========================================================================== */
@keyframes titaniumSheen {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

@keyframes specularSweep {
  0% {
    transform: translateX(-140%) skewX(-22deg);
    opacity: 0;
  }
  20% {
    opacity: 0.45;
  }
  50% {
    opacity: 0.28;
  }
  80% {
    opacity: 0;
  }
  100% {
    transform: translateX(240%) skewX(-22deg);
    opacity: 0;
  }
}

@keyframes studioPulse {
  0% {
    opacity: 0.55;
    transform: translateX(-50%) scale(0.98);
  }
  100% {
    opacity: 0.92;
    transform: translateX(-50%) scale(1.04);
  }
}

/* ==========================================================================
   顶部导航栏
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(10, 12, 15, 0.78);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex-shrink: 0;
}

.brand-logo-img {
  height: 38px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(255, 255, 255, 0.14));
}

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

.brand-name-zh {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--titanium-100);
}

.brand-domain {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--champagne);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  padding: 8px 13px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--titanium-300);
  transition: color 0.2s ease, background-color 0.2s ease;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--titanium-100);
  background: rgba(255, 255, 255, 0.07);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.2;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease, background 0.22s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn-sm {
  padding: 9px 18px;
  font-size: 13px;
}

.btn-lg {
  padding: 15px 32px;
  font-size: 15px;
}

.btn-titanium {
  position: relative;
  overflow: hidden;
  color: #0b0d11;
  background: linear-gradient(125deg, #ffffff 0%, #e5e8ef 35%, #e3d3ba 72%, #f9fafb 100%);
  background-size: 220% 220%;
  box-shadow: 0 10px 28px -8px rgba(227, 211, 186, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.9);
  animation: titaniumSheen 9s ease-in-out infinite;
}

.btn-titanium:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px -10px rgba(227, 211, 186, 0.5), inset 0 1px 0 #ffffff;
}

.btn-outline {
  color: var(--titanium-100);
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border-titanium);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: var(--border-bright);
  transform: translateY(-1px);
}

.mobile-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-titanium);
  color: var(--titanium-100);
}

.mobile-drawer {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  z-index: 95;
  background: rgba(11, 13, 17, 0.96);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  border-bottom: 1px solid var(--border-titanium);
  padding: 18px 24px 28px;
}

.mobile-drawer.is-open {
  display: block;
}

.mobile-drawer-links {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.mobile-drawer-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  font-size: 15px;
  font-weight: 500;
  color: var(--titanium-100);
}

/* ==========================================================================
   Hero 区块：超大品牌文字 -> 中央产品模型
   ========================================================================== */
.hero-titanium {
  position: relative;
  padding: 64px 0 76px;
  overflow: hidden;
}

/* 柔和工作室顶部灯光 */
.hero-studio-light {
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: min(1100px, 120vw);
  height: 520px;
  background:
    radial-gradient(ellipse 52% 45% at 50% 35%, rgba(255, 255, 255, 0.14), rgba(227, 211, 186, 0.06) 45%, transparent 74%);
  pointer-events: none;
  z-index: 0;
  animation: studioPulse 11s ease-in-out infinite alternate;
}

.hero-inner {
  position: relative;
  z-index: 2;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 100%;
  padding: 7px 14px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--border-titanium);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--champagne);
  margin-bottom: 22px;
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--emerald);
  box-shadow: 0 0 10px var(--emerald);
}

/* 超大品牌文字 */
.hero-mega-brand {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.15rem, 9.6vw, 7.8rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.03em;
  max-width: 100%;
  word-break: break-word;
  background: linear-gradient(
    110deg,
    #78808f 0%,
    #e5e7eb 22%,
    #ffffff 38%,
    #e3d3ba 50%,
    #ffffff 62%,
    #b6becb 78%,
    #78808f 100%
  );
  background-size: 240% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: titaniumSheen 10s ease-in-out infinite;
  text-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  user-select: none;
}

.hero-seo-h1 {
  margin: 18px auto 14px;
  max-width: 860px;
  font-size: clamp(1.35rem, 2.8vw, 2.15rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--titanium-100);
  letter-spacing: -0.01em;
}

.hero-seo-h1 .highlight-champagne {
  color: var(--champagne);
}

.hero-lead {
  margin: 0 auto 30px;
  max-width: 720px;
  font-size: clamp(0.96rem, 1.5vw, 1.1rem);
  color: var(--titanium-300);
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 24px;
}

.hero-trust-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 24px;
  font-size: 13px;
  color: var(--titanium-300);
  margin-bottom: 52px;
}

.hero-trust-strip span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero-trust-strip strong {
  color: var(--champagne);
  font-weight: 600;
}

/* ==========================================================================
   中央产品模型（Titanium Pro 桌面 + 移动协同硬件控制台模型）
   ========================================================================== */
.product-stage {
  position: relative;
  max-width: 980px;
  margin: 0 auto;
  padding-bottom: 22px;
}

.product-stage::after {
  content: "";
  position: absolute;
  bottom: -14px;
  left: 50%;
  transform: translateX(-50%);
  width: 78%;
  height: 44px;
  background: radial-gradient(ellipse at center, rgba(227, 211, 186, 0.22), transparent 72%);
  filter: blur(18px);
  pointer-events: none;
}

.titanium-chassis {
  position: relative;
  border-radius: 26px;
  padding: 2px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.36), rgba(255, 255, 255, 0.06) 40%, rgba(227, 211, 186, 0.28) 72%, rgba(255, 255, 255, 0.16));
  box-shadow: var(--shadow-studio);
  overflow: hidden;
  text-align: left;
}

/* 金属高光缓慢移动扫光层 */
.titanium-chassis::before,
.pricing-card--featured::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 36%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.11), rgba(227, 211, 186, 0.14), transparent);
  pointer-events: none;
  z-index: 3;
  animation: specularSweep 11s ease-in-out infinite;
}

.titanium-screen {
  position: relative;
  z-index: 1;
  border-radius: 24px;
  background:
    radial-gradient(ellipse 90% 60% at 80% 0%, rgba(227, 211, 186, 0.08), transparent 60%),
    linear-gradient(165deg, #161920 0%, #0e1015 62%, #0a0b0e 100%);
  padding: 22px 26px 26px;
}

.console-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 22px;
  flex-wrap: wrap;
}

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

.console-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
}

.console-dots span:first-child {
  background: rgba(227, 211, 186, 0.65);
}

.console-brand-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  font-size: 11.5px;
  color: var(--titanium-200);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.console-brand-pill img {
  height: 18px;
  width: auto;
}

.console-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  font-weight: 600;
  color: var(--emerald);
  background: var(--emerald-soft);
  border: 1px solid rgba(52, 211, 153, 0.25);
  padding: 5px 12px;
  border-radius: 999px;
}

.console-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 20px;
  align-items: stretch;
}

.console-panel {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  padding: 18px;
  min-width: 0;
  max-width: 100%;
}

.console-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
  font-size: 13px;
  color: var(--titanium-300);
}

.console-panel-head strong {
  color: var(--titanium-100);
  font-size: 14px;
}

.node-list {
  display: grid;
  gap: 10px;
}

.node-item {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--titanium-200);
  font-size: 13px;
  text-align: left;
  transition: border-color 0.2s ease, background 0.2s ease;
  min-width: 0;
}

.node-item:hover,
.node-item.is-active {
  background: rgba(227, 211, 186, 0.09);
  border-color: var(--champagne-border);
  color: var(--titanium-100);
}

.node-name {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 8px;
  font-weight: 600;
  min-width: 0;
}

.node-tag {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--titanium-300);
}

.node-ping {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--emerald);
  font-weight: 600;
}

.telemetry-panel {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
}

.telemetry-meter {
  padding: 14px 16px;
  border-radius: 14px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.01));
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.telemetry-label {
  font-size: 12px;
  color: var(--titanium-400);
  margin-bottom: 4px;
}

.telemetry-value {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  color: var(--titanium-100);
  letter-spacing: -0.02em;
}

.telemetry-value span {
  font-size: 13px;
  font-weight: 500;
  color: var(--champagne);
  margin-left: 6px;
}

.quota-bar {
  margin-top: 10px;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.quota-bar-fill {
  height: 100%;
  width: 78%;
  border-radius: 999px;
  background: linear-gradient(90deg, #c7cfd9, #e3d3ba, #ffffff);
}

.client-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.client-chip {
  font-size: 11px;
  padding: 5px 10px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--titanium-200);
}

/* ==========================================================================
   核心优势 Bento Grid
   ========================================================================== */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.titanium-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  padding: 28px;
  background: linear-gradient(155deg, rgba(29, 33, 41, 0.85) 0%, rgba(16, 18, 24, 0.94) 100%);
  border: 1px solid var(--border-titanium);
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.titanium-card:hover {
  transform: translateY(-4px);
  border-color: var(--champagne-border);
  box-shadow: 0 24px 54px -20px rgba(0, 0, 0, 0.85);
}

.card-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(227, 211, 186, 0.06));
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: var(--champagne);
  margin-bottom: 18px;
}

.titanium-card h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--titanium-100);
}

.titanium-card p {
  margin: 0;
  font-size: 14.5px;
  color: var(--titanium-300);
  line-height: 1.7;
}

/* ==========================================================================
   套餐价格卡片 + 图一官方完整表格矩阵
   ========================================================================== */
.billing-switch-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 34px;
}

.billing-switch {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  padding: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-titanium);
}

.billing-btn {
  padding: 9px 18px;
  border-radius: 999px;
  border: 0;
  background: transparent;
  color: var(--titanium-300);
  font-size: 13.5px;
  font-weight: 600;
  transition: background 0.2s ease, color 0.2s ease;
}

.billing-btn.is-active {
  background: linear-gradient(125deg, #ffffff 0%, #e3d3ba 100%);
  color: #0b0d11;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-bottom: 48px;
}

.pricing-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  background: linear-gradient(160deg, rgba(26, 30, 38, 0.9), rgba(14, 16, 21, 0.96));
  border: 1px solid var(--border-titanium);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.pricing-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-bright);
}

.pricing-card--featured {
  background: linear-gradient(160deg, rgba(35, 38, 46, 0.95), rgba(16, 18, 24, 0.98));
  border-color: var(--champagne-border);
  box-shadow: 0 28px 60px -22px rgba(227, 211, 186, 0.22);
}

.plan-badge {
  display: inline-block;
  align-self: flex-start;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: rgba(255, 255, 255, 0.08);
  color: var(--titanium-200);
  margin-bottom: 14px;
}

.pricing-card--featured .plan-badge {
  background: var(--champagne-soft);
  color: var(--champagne);
  border: 1px solid var(--champagne-border);
}

.plan-name {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 700;
  color: var(--titanium-100);
}

.plan-desc {
  margin: 0 0 22px;
  font-size: 14px;
  color: var(--titanium-300);
  min-height: 46px;
}

.plan-price-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 6px;
}

.plan-currency {
  font-size: 22px;
  font-weight: 700;
  color: var(--champagne);
}

.plan-amount {
  font-family: var(--font-display);
  font-size: 46px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--titanium-100);
}

.plan-cycle {
  font-size: 14px;
  color: var(--titanium-400);
}

.plan-subnote {
  font-size: 12.5px;
  color: var(--champagne);
  margin-bottom: 22px;
  min-height: 20px;
}

.plan-features {
  list-style: none;
  margin: 0 0 28px;
  padding: 20px 0 0;
  border-top: 1px solid var(--border-subtle);
  display: grid;
  gap: 11px;
  font-size: 14px;
  color: var(--titanium-200);
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.check-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--emerald-soft);
  color: var(--emerald);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 700;
}

/* 官方对比价目表（精准还原图一） */
.pricing-table-card {
  border-radius: var(--radius-lg);
  padding: 28px;
  background: linear-gradient(160deg, rgba(23, 26, 33, 0.92), rgba(12, 14, 19, 0.96));
  border: 1px solid var(--border-titanium);
  max-width: 100%;
  min-width: 0;
}

.pricing-table-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.pricing-table-head h3 {
  margin: 0;
  font-size: 19px;
  color: var(--titanium-100);
}

.pricing-table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 14px;
  border: 1px solid var(--border-subtle);
  max-width: 100%;
  width: 100%;
}

.titanium-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  text-align: center;
  font-size: 14.5px;
}

.titanium-table th {
  padding: 15px 14px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--titanium-100);
  font-weight: 600;
  border-bottom: 1px solid var(--border-titanium);
  white-space: nowrap;
}

.titanium-table td {
  padding: 16px 14px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--titanium-200);
  white-space: nowrap;
}

.titanium-table tbody tr:last-child td {
  border-bottom: 0;
}

.titanium-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.025);
}

.titanium-table td:first-child {
  font-weight: 700;
  color: var(--titanium-100);
  text-align: left;
  padding-left: 20px;
}

.titanium-table th:first-child {
  text-align: left;
  padding-left: 20px;
}

.table-price {
  font-weight: 700;
  color: var(--champagne);
}

.table-buy-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(227, 211, 186, 0.12);
  border: 1px solid var(--champagne-border);
  color: var(--champagne);
  font-size: 13px;
  font-weight: 600;
  transition: background 0.2s ease, color 0.2s ease;
}

.table-buy-link:hover {
  background: var(--champagne);
  color: #0b0d11;
}

/* ==========================================================================
   关于宝云预览与跳转区块
   ========================================================================== */
.about-spotlight {
  border-radius: var(--radius-xl);
  padding: 44px;
  background:
    radial-gradient(circle at 12% 20%, rgba(227, 211, 186, 0.1), transparent 52%),
    linear-gradient(145deg, rgba(26, 30, 38, 0.92), rgba(13, 15, 20, 0.97));
  border: 1px solid var(--border-titanium);
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 38px;
  align-items: center;
}

.about-brand-emblem {
  border-radius: 24px;
  padding: 36px 24px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
  border: 1px solid var(--border-titanium);
  text-align: center;
}

.about-brand-emblem img {
  height: 118px;
  margin: 0 auto 18px;
  filter: drop-shadow(0 12px 28px rgba(0, 0, 0, 0.5));
}

.about-motto {
  font-size: 15px;
  font-weight: 700;
  color: var(--champagne);
  letter-spacing: 0.04em;
}

.about-copy h2 {
  margin: 0 0 12px;
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  color: var(--titanium-100);
}

.about-lead {
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 600;
  color: var(--champagne);
}

.about-copy p {
  margin: 0 0 14px;
  color: var(--titanium-300);
  font-size: 15px;
}

/* ==========================================================================
   6 篇指南文章专栏网格
   ========================================================================== */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.article-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-radius: var(--radius-lg);
  padding: 26px;
  background: linear-gradient(160deg, rgba(24, 28, 36, 0.9), rgba(14, 16, 21, 0.95));
  border: 1px solid var(--border-titanium);
  transition: transform 0.24s ease, border-color 0.24s ease;
}

.article-card:hover {
  transform: translateY(-4px);
  border-color: var(--champagne-border);
}

.article-meta-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 12px;
}

.article-tag {
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--champagne-soft);
  border: 1px solid var(--champagne-border);
  color: var(--champagne);
  font-weight: 600;
}

.article-readtime {
  color: var(--titanium-400);
}

.article-card h3 {
  margin: 0 0 10px;
  font-size: 17.5px;
  line-height: 1.45;
  color: var(--titanium-100);
}

.article-card p {
  margin: 0 0 20px;
  font-size: 14px;
  color: var(--titanium-300);
  line-height: 1.7;
}

.article-read-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--champagne);
}

/* ==========================================================================
   用户评价 & 常见问题 FAQ
   ========================================================================== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.review-card {
  border-radius: var(--radius-lg);
  padding: 26px;
  background: linear-gradient(155deg, rgba(25, 29, 36, 0.88), rgba(14, 16, 21, 0.95));
  border: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
}

.review-stars {
  color: var(--champagne);
  letter-spacing: 2px;
  font-size: 15px;
  margin-bottom: 10px;
}

.review-quote {
  margin: 0;
  font-size: 14.5px;
  color: var(--titanium-200);
  line-height: 1.75;
}

.review-author {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  font-size: 13px;
}

.review-author strong {
  color: var(--titanium-100);
  display: block;
}

.review-author span {
  color: var(--titanium-400);
  font-size: 12px;
}

.review-plan-pill {
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--titanium-300);
  font-size: 11.5px;
  white-space: nowrap;
}

.faq-list {
  max-width: 880px;
  margin: 0 auto;
  display: grid;
  gap: 12px;
}

.faq-item {
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, rgba(24, 28, 35, 0.9), rgba(14, 16, 21, 0.96));
  border: 1px solid var(--border-titanium);
  overflow: hidden;
}

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: transparent;
  border: 0;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--titanium-100);
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--champagne);
  transition: transform 0.25s ease;
}

.faq-item.is-open .faq-icon {
  transform: rotate(45deg);
}

.faq-panel {
  display: none;
  padding: 0 24px 20px;
  font-size: 14.5px;
  color: var(--titanium-300);
  line-height: 1.78;
}

.faq-item.is-open .faq-panel {
  display: block;
}

.faq-panel a {
  color: var(--champagne);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ==========================================================================
   底部 CTA 横幅 & 页脚
   ========================================================================== */
.cta-banner {
  border-radius: var(--radius-xl);
  padding: 52px 36px;
  text-align: center;
  background:
    radial-gradient(ellipse 70% 80% at 50% 0%, rgba(227, 211, 186, 0.16), transparent 65%),
    linear-gradient(155deg, rgba(30, 34, 42, 0.95), rgba(14, 16, 21, 0.98));
  border: 1px solid var(--champagne-border);
  box-shadow: var(--shadow-studio);
}

.cta-banner h2 {
  margin: 0 0 12px;
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  color: var(--titanium-100);
}

.cta-banner p {
  margin: 0 auto 28px;
  max-width: 620px;
  color: var(--titanium-300);
}

.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: rgba(8, 9, 12, 0.95);
  padding: 56px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1.2fr 0.9fr;
  gap: 32px;
  margin-bottom: 40px;
}

.footer-brand p {
  margin: 14px 0 0;
  font-size: 13.5px;
  color: var(--titanium-400);
  max-width: 320px;
}

.footer-col h4 {
  margin: 0 0 14px;
  font-size: 14px;
  font-weight: 700;
  color: var(--titanium-100);
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.footer-col a {
  font-size: 13.5px;
  color: var(--titanium-400);
  transition: color 0.2s ease;
}

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

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 12.5px;
  color: var(--titanium-500);
}

/* ==========================================================================
   文章页 & 关于页专用排版样式
   ========================================================================== */
.reading-progress {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  height: 3px;
  width: 0%;
  z-index: 99;
  background: linear-gradient(90deg, #e5e7eb, #e3d3ba);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--titanium-400);
  margin-bottom: 22px;
}

.breadcrumb a:hover {
  color: var(--champagne);
}

.article-hero {
  padding: 48px 0 36px;
  border-bottom: 1px solid var(--border-subtle);
}

.article-title {
  margin: 0 0 16px;
  font-size: clamp(1.75rem, 3.6vw, 2.7rem);
  line-height: 1.28;
  color: var(--titanium-100);
}

.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  font-size: 13.5px;
  color: var(--titanium-400);
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: 36px;
  padding: 42px 0 76px;
  align-items: start;
}

.article-prose {
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  background: linear-gradient(165deg, rgba(22, 26, 33, 0.88), rgba(13, 15, 20, 0.96));
  border: 1px solid var(--border-titanium);
}

.geo-tldr {
  border-radius: 16px;
  padding: 20px 24px;
  background: linear-gradient(135deg, rgba(227, 211, 186, 0.1), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--champagne-border);
  margin-bottom: 28px;
}

.geo-tldr strong {
  display: block;
  color: var(--champagne);
  font-size: 14px;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.geo-tldr p {
  margin: 0;
  font-size: 14.5px;
  color: var(--titanium-100);
}

.article-prose h2 {
  margin: 34px 0 14px;
  font-size: 1.4rem;
  color: var(--titanium-100);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
}

.article-prose h3 {
  margin: 24px 0 10px;
  font-size: 1.12rem;
  color: var(--champagne);
}

.article-prose p {
  margin: 0 0 16px;
  color: var(--titanium-200);
  font-size: 16px;
  line-height: 1.85;
}

.article-prose ul,
.article-prose ol {
  margin: 0 0 18px;
  padding-left: 22px;
  color: var(--titanium-200);
  line-height: 1.82;
}

.article-prose li {
  margin-bottom: 8px;
}

.article-prose a {
  color: var(--champagne);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-prose a.btn {
  text-decoration: none;
  color: #0b0d11;
}

.article-callout {
  margin: 26px 0;
  padding: 20px 24px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.035);
  border-left: 3px solid var(--champagne);
}

.article-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + 20px);
  display: grid;
  gap: 20px;
}

.sidebar-box {
  border-radius: var(--radius-md);
  padding: 22px;
  background: linear-gradient(160deg, rgba(24, 28, 35, 0.9), rgba(14, 16, 21, 0.96));
  border: 1px solid var(--border-titanium);
}

.sidebar-box h3 {
  margin: 0 0 12px;
  font-size: 15px;
  color: var(--titanium-100);
}

.toc-list,
.related-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.toc-list a,
.related-links a {
  font-size: 13.5px;
  color: var(--titanium-300);
  display: block;
  line-height: 1.5;
}

.toc-list a:hover,
.related-links a:hover {
  color: var(--champagne);
}

.article-nav-cards {
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--border-subtle);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.article-nav-card {
  padding: 18px 20px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  text-decoration: none !important;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.article-nav-card:hover {
  border-color: var(--champagne-border);
  background: rgba(227, 211, 186, 0.06);
}

.article-nav-card span {
  display: block;
  font-size: 12px;
  color: var(--titanium-400);
  margin-bottom: 4px;
}

.article-nav-card strong {
  display: block;
  font-size: 14.5px;
  color: var(--titanium-100);
}

/* ==========================================================================
   移动端深度适配
   ========================================================================== */
@media (max-width: 1024px) {
  .bento-grid,
  .pricing-grid,
  .articles-grid,
  .reviews-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-spotlight {
    grid-template-columns: 1fr;
    padding: 32px;
  }

  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

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

  .brand-logo-img {
    height: 32px;
  }

  .brand-name-zh {
    font-size: 15px;
  }

  .brand-domain {
    font-size: 10px;
  }

  .nav-actions .btn-titanium {
    padding: 8px 13px;
    font-size: 12px;
  }

  .mobile-menu-toggle {
    display: inline-flex;
  }

  .container {
    padding: 0 16px;
  }

  .section {
    padding: 60px 0;
  }

  .hero-titanium {
    padding: 40px 0 54px;
  }

  .console-grid,
  .bento-grid,
  .pricing-grid,
  .articles-grid,
  .reviews-grid,
  .footer-grid,
  .article-nav-cards {
    grid-template-columns: 1fr;
  }

  .titanium-screen {
    padding: 16px;
  }

  .hero-cta-group .btn {
    width: 100%;
  }

  .pricing-table-card {
    padding: 20px 16px;
  }

  .article-prose {
    padding: 24px 20px;
  }

  .cta-banner {
    padding: 36px 20px;
  }

  .billing-switch {
    padding: 4px;
    gap: 2px;
    border-radius: 20px;
  }

  .billing-btn {
    padding: 8px 11px;
    font-size: 12.5px;
  }
}

@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;
  }
}