/* ==========================================================================
   华企环球国际咨询 — 设计系统 main.css
   主色:深蓝 #0A2B5C(信任/全球) + 金色 #C8A968(高端/国际化)
   字体:PingFang SC / Microsoft YaHei
   风格:科技感 + 专业深度,响应式
   ========================================================================== */

/* ---------- 设计变量 ---------- */
:root {
  --c-primary: #0A2B5C;          /* 深蓝主色 */
  --c-primary-light: #1E4A8C;    /* 浅蓝 */
  --c-primary-dark: #061A3A;     /* 暗蓝 */
  --c-gold: #C8A968;             /* 金色点缀 */
  --c-gold-light: #E0C288;       /* 浅金 */
  --c-bg: #FFFFFF;               /* 主背景 */
  --c-bg-soft: #F5F7FA;          /* 浅灰背景 */
  --c-bg-dark: #061A3A;          /* 深色背景 */
  --c-text: #2C3E50;             /* 主文字 */
  --c-text-light: #6B7A8C;       /* 次文字 */
  --c-text-white: #FFFFFF;
  --c-border: #E5EAF0;           /* 边框 */
  --c-success: #2BA85B;          /* 成功 */
  --c-warning: #E89B2B;          /* 警告 */
  --c-danger: #D9483B;           /* 危险 */
  --c-current: #2B7FE8;          /* 当前步骤 */

  --shadow-sm: 0 1px 3px rgba(10, 43, 92, 0.06);
  --shadow-md: 0 4px 12px rgba(10, 43, 92, 0.08);
  --shadow-lg: 0 12px 32px rgba(10, 43, 92, 0.12);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --container: 1200px;
  --nav-h: 72px;

  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", Consolas, "Courier New", monospace;
}

/* ---------- 基础重置 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--c-primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--c-gold); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ---------- 容器 ---------- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-sm { max-width: 880px; margin: 0 auto; padding: 0 24px; }

/* ---------- 文字工具 ---------- */
.text-center { text-align: center; }
.text-gold { color: var(--c-gold); }
.text-white { color: var(--c-text-white); }
.text-light { color: var(--c-text-light); }
.text-sm { font-size: 13px; }
.text-lg { font-size: 18px; }
.text-xl { font-size: 22px; }
.text-2xl { font-size: 28px; }
.text-3xl { font-size: 36px; }
.font-bold { font-weight: 700; }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; } .mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; } .mb-4 { margin-bottom: 32px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--c-border);
  height: var(--nav-h);
}
.site-header .container { display: flex; align-items: center; height: 100%; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--c-primary); }
.brand .brand-logo {
  width: 36px; height: 36px; border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%);
  color: var(--c-gold); display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 900;
}
.brand .brand-text { line-height: 1.2; }
.brand .brand-text small { display: block; font-size: 10px; color: var(--c-text-light); font-weight: 400; letter-spacing: 2px; }

.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-item { position: relative; }
.nav-link {
  display: flex; align-items: center; gap: 4px;
  padding: 8px 14px; color: var(--c-text); font-size: 14px; font-weight: 500;
  border-radius: var(--radius-sm); transition: all .2s; cursor: pointer;
}
.nav-link:hover, .nav-item.active .nav-link { color: var(--c-primary); background: var(--c-bg-soft); }
.nav-link .badge-new {
  font-size: 10px; background: var(--c-danger); color: white;
  padding: 1px 6px; border-radius: var(--radius-full); margin-left: 2px; font-weight: 700;
}
.nav-dropdown {
  position: absolute; top: 100%; left: 0; min-width: 200px;
  background: white; border: 1px solid var(--c-border); border-radius: var(--radius-md);
  box-shadow: var(--shadow-md); padding: 8px;
  opacity: 0; visibility: hidden; transform: translateY(8px); transition: all .2s;
}
.nav-item:hover .nav-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown a { display: block; padding: 8px 12px; border-radius: var(--radius-sm); font-size: 14px; color: var(--c-text); }
.nav-dropdown a:hover { background: var(--c-bg-soft); color: var(--c-primary); }

.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-phone { font-size: 14px; color: var(--c-text-light); }
.nav-phone strong { color: var(--c-primary); font-size: 16px; }

.nav-toggle { display: none; width: 32px; height: 32px; flex-direction: column; justify-content: center; gap: 5px; }
.nav-toggle span { display: block; height: 2px; background: var(--c-primary); border-radius: 2px; transition: all .3s; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 12px 24px; font-size: 15px; font-weight: 600;
  border-radius: var(--radius-md); transition: all .2s; cursor: pointer;
  border: 2px solid transparent;
}
.btn-primary { background: var(--c-primary); color: white; }
.btn-primary:hover { background: var(--c-primary-dark); color: var(--c-gold); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-gold { background: var(--c-gold); color: white; }
.btn-gold:hover { background: var(--c-gold-light); color: white; transform: translateY(-1px); }
.btn-outline { border-color: var(--c-primary); color: var(--c-primary); background: white; }
.btn-outline:hover { background: var(--c-primary); color: white; }
.btn-ghost { color: var(--c-text); }
.btn-ghost:hover { color: var(--c-primary); }
.btn-lg { padding: 16px 32px; font-size: 16px; }
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-block { display: flex; width: 100%; }

/* ---------- Hero 区 ---------- */
.hero {
  position: relative; padding: 80px 0 100px; overflow: hidden;
  background: linear-gradient(135deg, var(--c-primary-dark) 0%, var(--c-primary) 60%, var(--c-primary-light) 100%);
  color: white;
}
.hero::before {
  content: ''; position: absolute; top: -20%; right: -10%; width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(200,169,104,0.18) 0%, transparent 70%);
  pointer-events: none;
}
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px; align-items: center; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; background: rgba(200,169,104,0.15); border: 1px solid rgba(200,169,104,0.4);
  color: var(--c-gold-light); border-radius: var(--radius-full); font-size: 13px; margin-bottom: 20px;
}
.hero h1 { font-size: 48px; font-weight: 800; line-height: 1.2; margin-bottom: 20px; }
.hero h1 .text-gold { display: block; }
.hero-desc { font-size: 18px; color: rgba(255,255,255,0.85); margin-bottom: 32px; line-height: 1.7; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 36px; }
.hero-stats { display: flex; gap: 36px; flex-wrap: wrap; }
.hero-stat .num { font-size: 32px; font-weight: 800; color: var(--c-gold); }
.hero-stat .label { font-size: 13px; color: rgba(255,255,255,0.7); }

/* hero 右侧卡片 */
.hero-card {
  background: white; border-radius: var(--radius-lg); padding: 28px;
  box-shadow: var(--shadow-lg); color: var(--c-text);
}
.hero-card h3 { font-size: 18px; margin-bottom: 16px; color: var(--c-primary); display: flex; align-items: center; gap: 8px; }
.hero-card .ai-bubble {
  background: var(--c-bg-soft); padding: 12px 16px; border-radius: var(--radius-md);
  margin-bottom: 10px; font-size: 14px; line-height: 1.6; animation: fadeInUp .6s ease;
}
.hero-card .ai-bubble.user { background: var(--c-primary); color: white; margin-left: 30px; }
.hero-card-cta { display: flex; gap: 10px; margin-top: 16px; }

@keyframes fadeInUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ---------- 区块通用 ---------- */
.section { padding: 80px 0; }
.section-soft { background: var(--c-bg-soft); }
.section-dark { background: var(--c-bg-dark); color: white; }
.section-header { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-eyebrow {
  display: inline-block; padding: 4px 12px; background: rgba(10,43,92,0.08); color: var(--c-primary);
  border-radius: var(--radius-full); font-size: 13px; font-weight: 600; margin-bottom: 16px; letter-spacing: 1px;
}
.section-dark .section-eyebrow { background: rgba(200,169,104,0.15); color: var(--c-gold-light); }
.section-title { font-size: 36px; font-weight: 800; color: var(--c-primary); margin-bottom: 16px; line-height: 1.2; }
.section-dark .section-title { color: white; }
.section-desc { font-size: 16px; color: var(--c-text-light); line-height: 1.7; }
.section-dark .section-desc { color: rgba(255,255,255,0.7); }

/* ---------- 4 大差异化功能卡片 ---------- */
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-card {
  background: white; border: 1px solid var(--c-border); border-radius: var(--radius-lg);
  padding: 32px 24px; transition: all .3s; position: relative; overflow: hidden;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--c-gold); }
.feature-card.highlight { background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%); color: white; border: none; }
.feature-card.highlight .feature-icon { background: rgba(200,169,104,0.2); }
.feature-card.highlight .feature-title, .feature-card.highlight .feature-desc { color: white; }
.feature-card.highlight .feature-tagline { color: var(--c-gold-light); }
.feature-icon {
  width: 56px; height: 56px; border-radius: var(--radius-md);
  background: rgba(10,43,92,0.08); display: flex; align-items: center; justify-content: center;
  font-size: 28px; margin-bottom: 20px;
}
.feature-title { font-size: 18px; font-weight: 700; color: var(--c-primary); margin-bottom: 6px; }
.feature-tagline { font-size: 13px; color: var(--c-gold); font-weight: 600; margin-bottom: 12px; }
.feature-desc { font-size: 14px; color: var(--c-text-light); line-height: 1.7; }
.feature-link { display: inline-flex; align-items: center; gap: 4px; margin-top: 16px; font-size: 13px; font-weight: 600; color: var(--c-primary); }
.feature-card.highlight .feature-link { color: var(--c-gold-light); }
.feature-link::after { content: '→'; transition: transform .2s; }
.feature-link:hover::after { transform: translateX(3px); }

/* ---------- 8 大服务卡片 ---------- */
.services-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.service-card {
  background: white; border: 1px solid var(--c-border); border-radius: var(--radius-lg);
  padding: 28px 22px; transition: all .3s; display: flex; flex-direction: column;
}
.service-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--c-primary-light); }
.service-icon { font-size: 36px; margin-bottom: 16px; }
.service-name { font-size: 18px; font-weight: 700; color: var(--c-primary); margin-bottom: 8px; }
.service-tagline { font-size: 13px; color: var(--c-gold); margin-bottom: 12px; font-weight: 600; }
.service-desc { font-size: 14px; color: var(--c-text-light); line-height: 1.6; flex: 1; margin-bottom: 16px; }
.service-meta { display: flex; justify-content: space-between; align-items: center; padding-top: 14px; border-top: 1px solid var(--c-border); }
.service-price { font-size: 12px; color: var(--c-text-light); }
.service-price strong { color: var(--c-primary); font-size: 18px; }
.service-link { font-size: 13px; color: var(--c-primary); font-weight: 600; }

/* ---------- 服务详情页 ---------- */
.page-hero {
  background: linear-gradient(135deg, var(--c-primary-dark) 0%, var(--c-primary) 100%);
  color: white; padding: 64px 0 80px; position: relative; overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; bottom: -50%; right: -20%; width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(200,169,104,0.15) 0%, transparent 70%);
}
.page-hero .container { position: relative; z-index: 1; }
.breadcrumb { font-size: 13px; color: rgba(255,255,255,0.7); margin-bottom: 20px; }
.breadcrumb a { color: rgba(255,255,255,0.85); }
.breadcrumb a:hover { color: var(--c-gold); }
.page-title { font-size: 40px; font-weight: 800; margin-bottom: 16px; line-height: 1.2; }
.page-subtitle { font-size: 18px; color: rgba(255,255,255,0.85); max-width: 720px; line-height: 1.7; }
.page-actions { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap; }

/* 国家 tab */
.country-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 32px; border-bottom: 2px solid var(--c-border); padding-bottom: 0; }
.country-tab {
  padding: 12px 20px; font-size: 15px; font-weight: 600; color: var(--c-text-light);
  border-bottom: 3px solid transparent; margin-bottom: -2px; cursor: pointer; transition: all .2s;
}
.country-tab:hover { color: var(--c-primary); }
.country-tab.active { color: var(--c-primary); border-bottom-color: var(--c-gold); }

.country-panel { display: none; animation: fadeIn .3s; }
.country-panel.active { display: block; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.info-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 32px; }
.info-card {
  background: white; border: 1px solid var(--c-border); border-radius: var(--radius-md);
  padding: 20px; text-align: center;
}
.info-card .info-label { font-size: 12px; color: var(--c-text-light); margin-bottom: 6px; }
.info-card .info-value { font-size: 16px; font-weight: 700; color: var(--c-primary); }

.content-block { background: white; border-radius: var(--radius-md); padding: 32px; margin-bottom: 24px; border: 1px solid var(--c-border); }
.content-block h3 { font-size: 20px; color: var(--c-primary); margin-bottom: 16px; padding-left: 14px; border-left: 4px solid var(--c-gold); }
.content-block h4 { font-size: 16px; color: var(--c-text); margin: 18px 0 10px; }
.content-block p { color: var(--c-text); line-height: 1.8; margin-bottom: 12px; }
.content-block ul { padding-left: 20px; margin-bottom: 12px; }
.content-block ul li { list-style: disc; color: var(--c-text); line-height: 1.8; margin-bottom: 6px; }

/* ---------- 透明定价表 ---------- */
.pricing-table { width: 100%; background: white; border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--c-border); }
.pricing-table th, .pricing-table td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--c-border); font-size: 14px; }
.pricing-table th { background: var(--c-bg-soft); color: var(--c-primary); font-weight: 700; font-size: 13px; }
.pricing-table tr:last-child td { border-bottom: none; }
.pricing-table tr:hover td { background: rgba(10,43,92,0.02); }
.price-tag { color: var(--c-danger); font-weight: 700; }
.price-tag small { color: var(--c-text-light); font-weight: 400; font-size: 12px; }

/* 方案配置器 */
.configurator { background: white; border-radius: var(--radius-lg); padding: 32px; border: 1px solid var(--c-border); }
.config-item { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; border-bottom: 1px dashed var(--c-border); }
.config-item:last-child { border-bottom: none; }
.config-check { display: flex; align-items: center; gap: 12px; flex: 1; }
.config-check input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--c-primary); cursor: pointer; }
.config-item label { cursor: pointer; font-size: 15px; }
.config-price { font-weight: 700; color: var(--c-primary); min-width: 100px; text-align: right; }
.config-summary { display: flex; justify-content: space-between; align-items: center; margin-top: 20px; padding-top: 20px; border-top: 2px solid var(--c-primary); }
.config-total { font-size: 20px; font-weight: 800; color: var(--c-primary); }
.config-total small { font-size: 13px; color: var(--c-text-light); font-weight: 400; }

/* ---------- 交付追踪时间线 ---------- */
.tracking-timeline { position: relative; padding-left: 40px; }
.tracking-timeline::before { content: ''; position: absolute; left: 14px; top: 8px; bottom: 8px; width: 2px; background: var(--c-border); }
.tracking-step { position: relative; padding-bottom: 32px; }
.tracking-step:last-child { padding-bottom: 0; }
.tracking-dot {
  position: absolute; left: -40px; top: 0; width: 30px; height: 30px; border-radius: 50%;
  background: white; border: 3px solid var(--c-border); display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; color: var(--c-text-light); z-index: 1;
}
.tracking-step.done .tracking-dot { background: var(--c-success); border-color: var(--c-success); color: white; }
.tracking-step.current .tracking-dot { background: var(--c-current); border-color: var(--c-current); color: white; box-shadow: 0 0 0 6px rgba(43,127,232,0.18); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 6px rgba(43,127,232,0.18); } 50% { box-shadow: 0 0 0 12px rgba(43,127,232,0.08); } }
.tracking-content { background: white; border: 1px solid var(--c-border); border-radius: var(--radius-md); padding: 16px 20px; }
.tracking-step.current .tracking-content { border-color: var(--c-current); box-shadow: var(--shadow-md); }
.tracking-step-name { font-size: 16px; font-weight: 700; color: var(--c-text); margin-bottom: 4px; display: flex; align-items: center; gap: 10px; }
.tracking-step-status { font-size: 11px; padding: 2px 8px; border-radius: var(--radius-full); font-weight: 600; }
.status-done { background: rgba(43,168,91,0.12); color: var(--c-success); }
.status-current { background: rgba(43,127,232,0.12); color: var(--c-current); }
.status-pending { background: var(--c-bg-soft); color: var(--c-text-light); }
.tracking-step-meta { font-size: 13px; color: var(--c-text-light); margin-bottom: 6px; }
.tracking-step-desc { font-size: 14px; color: var(--c-text); line-height: 1.6; }

/* ---------- AI 对话 demo ---------- */
.ai-demo { background: white; border-radius: var(--radius-lg); border: 1px solid var(--c-border); overflow: hidden; box-shadow: var(--shadow-md); }
.ai-header { background: var(--c-primary); color: white; padding: 16px 24px; display: flex; align-items: center; gap: 12px; }
.ai-avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--c-gold); display: flex; align-items: center; justify-content: center; font-size: 18px; }
.ai-title { font-weight: 700; }
.ai-status { font-size: 12px; opacity: 0.8; display: flex; align-items: center; gap: 6px; }
.ai-status::before { content: ''; width: 8px; height: 8px; background: #4ADE80; border-radius: 50%; }
.ai-body { padding: 24px; height: 400px; overflow-y: auto; background: var(--c-bg-soft); }
.ai-msg { margin-bottom: 14px; max-width: 80%; animation: fadeInUp .4s ease; }
.ai-msg.ai { background: white; padding: 12px 16px; border-radius: var(--radius-md) var(--radius-md) var(--radius-md) 4px; border: 1px solid var(--c-border); }
.ai-msg.user { background: var(--c-primary); color: white; padding: 12px 16px; border-radius: var(--radius-md) var(--radius-md) 4px var(--radius-md); margin-left: auto; }
.ai-msg pre { white-space: pre-wrap; font-family: inherit; font-size: 14px; line-height: 1.6; }
.ai-typing { display: inline-flex; gap: 4px; padding: 12px 16px; }
.ai-typing span { width: 6px; height: 6px; background: var(--c-text-light); border-radius: 50%; animation: typing 1.2s infinite; }
.ai-typing span:nth-child(2) { animation-delay: .2s; }
.ai-typing span:nth-child(3) { animation-delay: .4s; }
@keyframes typing { 0%,60%,100% { transform: translateY(0); opacity: 0.4; } 30% { transform: translateY(-4px); opacity: 1; } }
.ai-suggestions { display: flex; gap: 8px; flex-wrap: wrap; padding: 12px 24px; background: white; border-top: 1px solid var(--c-border); }
.ai-suggestion { padding: 6px 12px; background: var(--c-bg-soft); border: 1px solid var(--c-border); border-radius: var(--radius-full); font-size: 12px; color: var(--c-text); cursor: pointer; transition: all .2s; }
.ai-suggestion:hover { background: var(--c-primary); color: white; border-color: var(--c-primary); }
.ai-input { display: flex; padding: 12px 16px; background: white; border-top: 1px solid var(--c-border); gap: 8px; }
.ai-input input { flex: 1; padding: 10px 14px; border: 1px solid var(--c-border); border-radius: var(--radius-md); font-size: 14px; font-family: inherit; outline: none; }
.ai-input input:focus { border-color: var(--c-primary); }

/* ---------- 知识文章 ---------- */
.article-layout { display: grid; grid-template-columns: 1fr 320px; gap: 40px; align-items: start; }
.article-body { font-size: 16px; line-height: 1.85; color: var(--c-text); }
.article-body h2 { font-size: 24px; color: var(--c-primary); margin: 32px 0 16px; padding-bottom: 10px; border-bottom: 2px solid var(--c-border); }
.article-body h2:first-child { margin-top: 0; }
.article-body h3 { font-size: 18px; color: var(--c-primary-dark); margin: 24px 0 12px; }
.article-body p { margin-bottom: 16px; }
.article-body ul, .article-body ol { padding-left: 24px; margin-bottom: 16px; }
.article-body li { margin-bottom: 8px; }
.article-body ul li { list-style: disc; }
.article-body ol li { list-style: decimal; }
.article-body strong { color: var(--c-primary); }
.article-body blockquote { border-left: 4px solid var(--c-gold); background: var(--c-bg-soft); padding: 16px 20px; margin: 16px 0; border-radius: 0 var(--radius-md) var(--radius-md) 0; }
.article-body code { font-family: var(--font-mono); background: var(--c-bg-soft); padding: 2px 6px; border-radius: var(--radius-sm); font-size: 13px; color: var(--c-danger); }
.article-body table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.article-body th, .article-body td { border: 1px solid var(--c-border); padding: 10px 14px; text-align: left; font-size: 14px; }
.article-body th { background: var(--c-bg-soft); color: var(--c-primary); font-weight: 700; }

.article-sidebar { position: sticky; top: 96px; }
.sidebar-card { background: white; border: 1px solid var(--c-border); border-radius: var(--radius-md); padding: 20px; margin-bottom: 20px; }
.sidebar-card h4 { font-size: 15px; color: var(--c-primary); margin-bottom: 12px; padding-bottom: 8px; border-bottom: 2px solid var(--c-gold); }
.sidebar-card a { display: block; padding: 8px 0; font-size: 14px; border-bottom: 1px dashed var(--c-border); }
.sidebar-card a:last-child { border-bottom: none; }
.article-toc a { color: var(--c-text); }
.article-toc a:hover { color: var(--c-primary); }

/* ---------- FAQ ---------- */
.faq-item { background: white; border: 1px solid var(--c-border); border-radius: var(--radius-md); margin-bottom: 12px; overflow: hidden; }
.faq-q { padding: 18px 24px; font-weight: 600; color: var(--c-primary); cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.faq-q::after { content: '+'; font-size: 24px; color: var(--c-gold); transition: transform .3s; }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s; padding: 0 24px; }
.faq-item.open .faq-a { max-height: 300px; padding: 0 24px 18px; }
.faq-a p { color: var(--c-text-light); line-height: 1.7; font-size: 14px; }

/* ---------- CTA 区 ---------- */
.cta-banner {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-dark) 100%);
  color: white; padding: 60px 0; border-radius: var(--radius-lg); text-align: center;
  position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute; top: -50%; left: -10%; width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(200,169,104,0.2) 0%, transparent 70%);
}
.cta-banner .container { position: relative; z-index: 1; }
.cta-banner h2 { font-size: 32px; font-weight: 800; margin-bottom: 14px; }
.cta-banner p { font-size: 16px; opacity: 0.85; margin-bottom: 28px; }
.cta-banner .hero-actions { justify-content: center; margin-bottom: 0; }

/* ---------- 全球网络 ---------- */
.region-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.region-card { background: white; border: 1px solid var(--c-border); border-radius: var(--radius-md); padding: 24px; transition: all .2s; }
.region-card:hover { border-color: var(--c-gold); box-shadow: var(--shadow-md); }
.region-card h3 { font-size: 16px; color: var(--c-primary); margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.region-card h3::before { content: ''; width: 6px; height: 16px; background: var(--c-gold); border-radius: var(--radius-sm); }
.country-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.country-tag { padding: 4px 10px; background: var(--c-bg-soft); border-radius: var(--radius-full); font-size: 13px; color: var(--c-text); }

.office-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.office-card { background: white; border: 1px solid var(--c-border); border-radius: var(--radius-md); padding: 20px; text-align: center; }
.office-card .office-city { font-size: 18px; font-weight: 700; color: var(--c-primary); margin-bottom: 6px; }
.office-card .office-type { font-size: 12px; color: var(--c-text-light); }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info-card { background: white; border: 1px solid var(--c-border); border-radius: var(--radius-md); padding: 24px; margin-bottom: 16px; display: flex; gap: 16px; align-items: flex-start; }
.contact-info-icon { width: 48px; height: 48px; background: var(--c-bg-soft); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; font-size: 22px; flex-shrink: 0; }
.contact-info-card h4 { font-size: 16px; color: var(--c-primary); margin-bottom: 6px; }
.contact-info-card p { font-size: 14px; color: var(--c-text-light); line-height: 1.7; }

.contact-form { background: white; border: 1px solid var(--c-border); border-radius: var(--radius-lg); padding: 32px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; color: var(--c-text); margin-bottom: 6px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 10px 14px; border: 1px solid var(--c-border); border-radius: var(--radius-md);
  font-size: 14px; font-family: inherit; outline: none; transition: border-color .2s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--c-primary); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-success { display: none; background: rgba(43,168,91,0.1); border: 1px solid var(--c-success); color: var(--c-success); padding: 12px 16px; border-radius: var(--radius-md); margin-top: 16px; font-size: 14px; }
.form-success.show { display: block; }

/* ---------- 关于页 ---------- */
.about-story { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.about-story-text p { margin-bottom: 16px; line-height: 1.85; color: var(--c-text); }
.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.value-card { text-align: center; padding: 32px 24px; background: white; border: 1px solid var(--c-border); border-radius: var(--radius-lg); }
.value-card .value-label { font-size: 12px; color: var(--c-text-light); letter-spacing: 3px; margin-bottom: 8px; }
.value-card .value-text { font-size: 20px; font-weight: 700; color: var(--c-primary); margin-bottom: 12px; }

.timeline { position: relative; padding-left: 40px; }
.timeline::before { content: ''; position: absolute; left: 14px; top: 0; bottom: 0; width: 2px; background: var(--c-border); }
.timeline-item { position: relative; padding-bottom: 32px; }
.timeline-item::before {
  content: ''; position: absolute; left: -34px; top: 4px; width: 14px; height: 14px;
  border-radius: 50%; background: var(--c-gold); border: 3px solid white; box-shadow: 0 0 0 2px var(--c-gold);
}
.timeline-year { font-size: 18px; font-weight: 800; color: var(--c-primary); margin-bottom: 4px; }
.timeline-text { font-size: 14px; color: var(--c-text); line-height: 1.7; }

/* ---------- 知识卡片 ---------- */
.knowledge-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.knowledge-card {
  background: white; border: 1px solid var(--c-border); border-radius: var(--radius-lg); overflow: hidden;
  transition: all .3s; display: flex; flex-direction: column;
}
.knowledge-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.knowledge-cover { height: 160px; background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%); display: flex; align-items: center; justify-content: center; color: white; font-size: 48px; }
.knowledge-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.knowledge-tag { display: inline-block; padding: 3px 10px; background: rgba(200,169,104,0.15); color: var(--c-gold); border-radius: var(--radius-full); font-size: 11px; font-weight: 600; margin-bottom: 10px; align-self: flex-start; }
.knowledge-title { font-size: 17px; font-weight: 700; color: var(--c-primary); margin-bottom: 10px; line-height: 1.4; }
.knowledge-excerpt { font-size: 13px; color: var(--c-text-light); line-height: 1.7; flex: 1; margin-bottom: 16px; }
.knowledge-meta { display: flex; justify-content: space-between; font-size: 12px; color: var(--c-text-light); padding-top: 12px; border-top: 1px solid var(--c-border); }

/* ---------- 客户案例 ---------- */
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card { background: white; border: 1px solid var(--c-border); border-radius: var(--radius-lg); padding: 24px; transition: all .2s; }
.case-card:hover { border-color: var(--c-gold); box-shadow: var(--shadow-md); }
.case-industry { display: inline-block; padding: 3px 10px; background: var(--c-primary); color: white; border-radius: var(--radius-sm); font-size: 11px; font-weight: 600; margin-bottom: 12px; }
.case-title { font-size: 16px; font-weight: 700; color: var(--c-primary); margin-bottom: 10px; }
.case-desc { font-size: 14px; color: var(--c-text-light); line-height: 1.7; margin-bottom: 14px; }
.case-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.case-tag { font-size: 11px; padding: 3px 8px; background: var(--c-bg-soft); color: var(--c-text); border-radius: var(--radius-sm); }

/* ---------- 漂浮客服 ---------- */
.float-service {
  position: fixed; right: 24px; bottom: 24px; z-index: 90;
  display: flex; flex-direction: column; gap: 10px;
}
.float-btn {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--c-primary); color: white; display: flex; flex-direction: column;
  align-items: center; justify-content: center; font-size: 11px; gap: 2px;
  box-shadow: var(--shadow-lg); cursor: pointer; transition: all .2s;
}
.float-btn:hover { background: var(--c-gold); transform: scale(1.05); }
.float-btn .float-icon { font-size: 20px; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--c-bg-dark); color: rgba(255,255,255,0.7); padding: 60px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .brand { color: white; margin-bottom: 16px; }
.footer-brand p { font-size: 13px; line-height: 1.7; margin-bottom: 16px; }
.footer-col h4 { font-size: 14px; color: white; margin-bottom: 16px; font-weight: 600; }
.footer-col a { display: block; padding: 6px 0; font-size: 13px; color: rgba(255,255,255,0.7); }
.footer-col a:hover { color: var(--c-gold); }
.footer-bottom { padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.1); font-size: 12px; text-align: center; }
.footer-disclaimer { font-size: 11px; color: rgba(255,255,255,0.4); line-height: 1.7; margin-top: 8px; max-width: 880px; margin-left: auto; margin-right: auto; }

/* ---------- 移动端 ---------- */
@media (max-width: 1024px) {
  .features-grid, .services-grid, .knowledge-grid, .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .region-grid, .office-grid, .values-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero h1 { font-size: 36px; }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .container, .container-sm { padding: 0 16px; }
  .section { padding: 56px 0; }
  .nav-menu { display: none; }
  .nav-toggle { display: flex; }
  .nav-menu.show { display: flex; flex-direction: column; position: absolute; top: var(--nav-h); left: 0; right: 0; background: white; padding: 16px; border-bottom: 1px solid var(--c-border); box-shadow: var(--shadow-md); max-height: 80vh; overflow-y: auto; }
  .nav-menu.show .nav-item { width: 100%; }
  .nav-menu.show .nav-link { padding: 12px; }
  .nav-dropdown { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; padding: 0 0 0 16px; }
  .nav-cta { display: none; }
  .hero { padding: 56px 0 72px; }
  .hero h1 { font-size: 28px; }
  .hero-stats { gap: 20px; }
  .features-grid, .services-grid, .knowledge-grid, .cases-grid, .region-grid, .office-grid, .values-grid, .info-grid { grid-template-columns: 1fr; }
  .page-title { font-size: 28px; }
  .section-title { font-size: 26px; }
  .about-story, .contact-grid, .form-row { grid-template-columns: 1fr; gap: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .float-service { right: 16px; bottom: 16px; }
  .pricing-table { font-size: 12px; }
  .pricing-table th, .pricing-table td { padding: 10px 8px; }
}

/* 打印优化 */
@media print {
  .site-header, .site-footer, .float-service, .nav-cta { display: none; }
}