/* ================================================================
   广州联软信息科技 · 企业官网 —— 共享样式（深色科技风）
   黑色大气主题 · 毛玻璃卡片 · 霓虹渐变 · 光晕氛围
   产品主线：金蝶精斗云 · 金蝶星辰
   ================================================================ */

:root {
  /* —— 品牌主色系 —— */
  --primary-dark: #0D3D7A;
  --primary: #1A5FBA;
  --primary-light: #4A90E2;
  --accent: #00C6FB;
  --accent-soft: rgba(0, 198, 251, 0.12);

  /* —— 深色科技风背景 —— */
  --bg: #060B16;              /* 极深底色 */
  --bg-alt: #0B1220;          /* 交替区块底色 */
  --bg-soft: #0E1626;         /* 柔和区块底色 */
  --bg-card: #0F1A2E;         /* 卡片底色 */

  /* —— 毛玻璃卡片 —— */
  --glass-bg: rgba(255, 255, 255, 0.04);
  --glass-bg-hover: rgba(255, 255, 255, 0.07);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(0, 198, 251, 0.4);

  /* —— 文字色（浅色系适配深色背景） —— */
  --text: #E8EEF5;
  --text-secondary: #8B9BB0;
  --text-dim: #5A6B7D;

  /* —— 状态色 —— */
  --success: #27AE60;
  --warning: #F39C12;
  --purple: #7B61FF;
  --danger: #E74C3C;

  /* —— 霓虹渐变 —— */
  --grad-neon: linear-gradient(135deg, #00C6FB 0%, #4A90E2 50%, #7B61FF 100%);
  --grad-primary: linear-gradient(135deg, #0D3D7A 0%, #1A5FBA 60%, #4A90E2 100%);
  --grad-cta: linear-gradient(135deg, #00C6FB 0%, #4A90E2 100%);
  --grad-hero: linear-gradient(150deg, #060B16 0%, #081226 40%, #0D2B57 75%, #123B77 100%);

  /* —— 霓虹光晕阴影 —— */
  --glow-accent: 0 0 20px rgba(0, 198, 251, 0.3), 0 0 40px rgba(0, 198, 251, 0.15);
  --glow-primary: 0 0 20px rgba(26, 95, 186, 0.3);
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.25);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 12px 40px rgba(0, 198, 251, 0.15), 0 4px 24px rgba(0, 0, 0, 0.4);

  /* —— 边框 —— */
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);

  /* —— 圆角 —— */
  --radius-sm: 8px;
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-icon: 12px;

  /* —— 布局 —— */
  --max-width: 1200px;
  --nav-height: 76px;
  --nav-height-scrolled: 60px;
}

/* ==================== 基础重置 ==================== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, video { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }
::selection { background: rgba(0, 198, 251, 0.25); color: #fff; }

/* —— 渐变光晕装饰：固定背景层，增加氛围感 —— */
.glow-bg { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; overflow: hidden; }
.glow-orb { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.14; }
.glow-orb--1 { top: -10%; left: -5%; width: 500px; height: 500px; background: var(--accent); }
.glow-orb--2 { top: 40%; right: -10%; width: 600px; height: 600px; background: var(--primary); }
.glow-orb--3 { bottom: -10%; left: 30%; width: 400px; height: 400px; background: var(--purple); }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
.section { padding: 84px 0; position: relative; z-index: 1; }
.section--alt { background: var(--bg-alt); }
.section--soft { background: var(--bg-soft); }

/* ==================== 通用区块头 ==================== */
.section-header { text-align: center; max-width: 760px; margin: 0 auto 56px; }
.section-header--left { text-align: left; margin-left: 0; }
.section-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.82rem; letter-spacing: 3px; color: var(--accent);
  font-weight: 700; margin-bottom: 14px; text-transform: uppercase;
  text-shadow: 0 0 10px rgba(0, 198, 251, 0.5);
}
.section-eyebrow::before { content: ''; width: 22px; height: 2px; background: var(--accent); border-radius: 2px; box-shadow: 0 0 8px rgba(0, 198, 251, 0.6); }
.section-title { font-size: clamp(1.6rem, 3.6vw, 2.2rem); font-weight: 700; color: var(--text); line-height: 1.4; margin-bottom: 16px; }
.section-title .highlight { color: var(--accent); position: relative; text-shadow: 0 0 16px rgba(0, 198, 251, 0.35); }
.section-subtitle { font-size: 1.02rem; color: var(--text-secondary); line-height: 1.9; }

/* ==================== 按钮（霓虹发光） ==================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 30px; border-radius: var(--radius-btn); font-size: 1rem; font-weight: 600;
  cursor: pointer; border: none; transition: all 0.3s ease-out; white-space: nowrap;
}
.btn--primary { background: var(--grad-cta); color: #fff; box-shadow: 0 4px 16px rgba(0, 198, 251, 0.3); }
.btn--primary:hover { transform: translateY(-2px) scale(1.03); box-shadow: 0 0 30px rgba(0, 198, 251, 0.5), 0 8px 24px rgba(0, 198, 251, 0.4); }
.btn--secondary { background: rgba(255, 255, 255, 0.05); color: var(--accent); border: 1.5px solid rgba(0, 198, 251, 0.4); }
.btn--secondary:hover { background: rgba(0, 198, 251, 0.1); border-color: var(--accent); box-shadow: var(--glow-accent); }
.btn--ghost { background: rgba(255, 255, 255, 0.06); color: #fff; border: 1.5px solid rgba(255, 255, 255, 0.2); backdrop-filter: blur(8px); }
.btn--ghost:hover { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.5); transform: scale(1.03); }
.btn--block { width: 100%; }
.btn--lg { padding: 15px 38px; font-size: 1.05rem; }
.btn--sm { padding: 9px 20px; font-size: 0.9rem; }

/* ==================== 顶部导航（毛玻璃深色） ==================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; height: var(--nav-height); z-index: 1000;
  background: rgba(6, 11, 22, 0.82); backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07); transition: height 0.3s ease, box-shadow 0.3s ease;
}
.nav--scrolled { height: var(--nav-height-scrolled); box-shadow: 0 2px 16px rgba(0, 0, 0, 0.4); background: rgba(6, 11, 22, 0.94); }
.nav-inner { max-width: var(--max-width); height: 100%; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.06rem; color: #fff; }
.nav-logo-icon {
  height: 76px; width: auto; flex-shrink: 0; object-fit: contain;
  transition: height 0.3s ease;
}
.nav--scrolled .nav-logo-icon { height: 54px; }
.nav-logo small { display: block; font-size: 0.68rem; font-weight: 500; color: var(--text-secondary); letter-spacing: 1px; }
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a { color: var(--text-secondary); font-size: 0.95rem; font-weight: 500; position: relative; transition: color 0.2s; }
.nav-links a::after { content: ''; position: absolute; bottom: -6px; left: 0; width: 0; height: 2px; background: var(--accent); border-radius: 2px; box-shadow: 0 0 8px rgba(0, 198, 251, 0.7); transition: width 0.3s ease-out; }
.nav-links a:hover, .nav-links a.active { color: #fff; }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-phone { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 1rem; color: #fff; }
.nav-phone-icon {
  width: 34px; height: 34px; border-radius: 50%; background: var(--grad-cta); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 0.9rem; box-shadow: 0 4px 12px rgba(0, 198, 251, 0.35);
}
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; background: none; border: none; }
.nav-toggle span { width: 24px; height: 2px; background: #fff; border-radius: 2px; transition: all 0.3s ease-out; }
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ==================== 首页首屏（深色大气） ==================== */
.hero { position: relative; padding: calc(var(--nav-height) + 64px) 0 80px; overflow: hidden; background: var(--grad-hero); }
.hero::before { content: ''; position: absolute; top: -160px; right: -100px; width: 560px; height: 560px; border-radius: 50%; background: radial-gradient(circle, rgba(0, 198, 251, 0.16), transparent 70%); pointer-events: none; }
.hero::after { content: ''; position: absolute; bottom: -180px; left: -120px; width: 620px; height: 620px; border-radius: 50%; background: radial-gradient(circle, rgba(74, 144, 226, 0.14), transparent 70%); pointer-events: none; }
.hero-inner { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; position: relative; z-index: 1; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px; font-size: 0.86rem; color: var(--accent);
  font-weight: 700; letter-spacing: 1px; margin-bottom: 20px;
  background: rgba(0, 198, 251, 0.08); border: 1px solid rgba(0, 198, 251, 0.25); padding: 7px 16px; border-radius: 30px;
}
.hero-eyebrow .dot { width: 8px; height: 8px; background: var(--accent); border-radius: 50%; box-shadow: 0 0 10px rgba(0, 198, 251, 0.8); }
.hero h1 { font-size: clamp(2rem, 4.6vw, 3rem); font-weight: 800; color: #fff; line-height: 1.3; margin-bottom: 20px; }
.hero h1 .highlight { color: var(--accent); text-shadow: 0 0 24px rgba(0, 198, 251, 0.4); }
.hero-sub { font-size: 1.08rem; color: var(--text-secondary); line-height: 1.9; max-width: 540px; margin-bottom: 32px; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 36px; }
.hero-trust { display: flex; gap: 28px; flex-wrap: wrap; }
.trust-item { display: flex; align-items: center; gap: 10px; color: var(--text-secondary); font-size: 0.9rem; font-weight: 500; }
.trust-item .ico {
  width: 38px; height: 38px; border-radius: 50%; background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.12);
  display: flex; align-items: center; justify-content: center; font-size: 1.05rem; color: var(--accent); flex-shrink: 0;
}
.hero-media { position: relative; }
.hero-video {
  width: 100%; aspect-ratio: 16/10; object-fit: cover; border-radius: var(--radius-card);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5); border: 1px solid rgba(255, 255, 255, 0.12);
}
.hero-badge {
  position: absolute; bottom: 22px; left: -18px; background: rgba(15, 26, 46, 0.92); backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 198, 251, 0.3); border-radius: 14px; padding: 14px 18px;
  box-shadow: var(--glow-accent); display: flex; align-items: center; gap: 12px;
}
.hero-badge .num { font-size: 1.5rem; font-weight: 800; color: var(--accent); line-height: 1; }
.hero-badge .lbl { font-size: 0.78rem; color: var(--text-secondary); }

/* ==================== 信任数据条 ==================== */
.trust-bar { background: linear-gradient(135deg, #0A1630 0%, #0D3D7A 100%); color: #fff; padding: 40px 0; border-top: 1px solid rgba(255, 255, 255, 0.06); border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.trust-bar-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.trust-bar-item .num { font-size: clamp(1.9rem, 4vw, 2.7rem); font-weight: 800; line-height: 1; font-family: 'Inter', 'DIN Alternate', sans-serif; text-shadow: 0 0 20px rgba(0, 198, 251, 0.35); }
.trust-bar-item .num .suffix { font-size: 1.3rem; }
.trust-bar-item .lbl { font-size: 0.9rem; opacity: 0.82; margin-top: 8px; }

/* ==================== 子页面头（breadcrumb） ==================== */
.page-hero { background: var(--grad-hero); padding: calc(var(--nav-height) + 44px) 0 48px; position: relative; overflow: hidden; }
.page-hero::before { content: ''; position: absolute; top: -120px; right: -60px; width: 420px; height: 420px; border-radius: 50%; background: radial-gradient(circle, rgba(0, 198, 251, 0.12), transparent 70%); pointer-events: none; }
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); font-weight: 800; color: #fff; margin-bottom: 10px; }
.page-hero p { color: var(--text-secondary); max-width: 760px; font-size: 1.02rem; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--text-dim); margin-bottom: 18px; }
.breadcrumb a { color: var(--accent); }
.breadcrumb .sep { color: var(--text-dim); }

/* ==================== 卡片（毛玻璃） ==================== */
.card {
  background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius-card);
  padding: 30px; transition: all 0.3s ease-out; position: relative; backdrop-filter: blur(10px);
}
.card:hover { border-color: var(--glass-border-hover); box-shadow: var(--shadow-card-hover); transform: translateY(-5px); }

.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.icon-box {
  width: 54px; height: 54px; border-radius: var(--radius-icon); margin-bottom: 18px;
  background: var(--accent-soft); border: 1px solid rgba(0, 198, 251, 0.25); color: var(--accent);
  display: flex; align-items: center; justify-content: center; font-size: 1.5rem; box-shadow: 0 0 16px rgba(0, 198, 251, 0.12);
}
.card h3 { font-size: 1.18rem; color: var(--text); margin-bottom: 10px; }
.card p { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.8; }
.card .link { display: inline-flex; align-items: center; gap: 6px; color: var(--accent); font-weight: 600; font-size: 0.9rem; margin-top: 14px; }
.card .link:hover { gap: 10px; }

/* ==================== 产品卡（霓虹） ==================== */
.product-card { background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius-card); overflow: hidden; transition: all 0.3s ease-out; display: flex; flex-direction: column; backdrop-filter: blur(10px); }
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); border-color: var(--glass-border-hover); }
.product-card--featured { border: 1px solid rgba(0, 198, 251, 0.4); box-shadow: 0 0 30px rgba(0, 198, 251, 0.08); }
.product-card-header { padding: 30px 30px 22px; background: linear-gradient(135deg, #0D3D7A 0%, #1A5FBA 60%, #2E6FD8 100%); color: #fff; position: relative; overflow: hidden; }
.product-card-header::after { content: ''; position: absolute; top: -50px; right: -50px; width: 180px; height: 180px; border-radius: 50%; background: rgba(0, 198, 251, 0.22); filter: blur(4px); }
.product-card-header--alt { background: linear-gradient(135deg, #123B77 0%, #1A5FBA 50%, #7B61FF 130%); }
.product-badge { display: inline-block; font-size: 0.74rem; padding: 4px 12px; border-radius: 20px; background: rgba(0, 198, 251, 0.22); border: 1px solid rgba(255, 255, 255, 0.25); color: #fff; font-weight: 700; margin-bottom: 14px; position: relative; }
.product-card-header h3 { font-size: 1.5rem; font-weight: 800; margin-bottom: 6px; position: relative; }
.product-card-header .tagline { font-size: 0.9rem; opacity: 0.85; position: relative; }
.product-card-body { padding: 26px 30px; flex: 1; }
.product-features li { display: flex; align-items: flex-start; gap: 10px; padding: 7px 0; font-size: 0.9rem; color: var(--text-secondary); border-bottom: 1px dashed rgba(255, 255, 255, 0.08); }
.product-features li:last-child { border-bottom: none; }
.feature-check { width: 20px; height: 20px; background: rgba(39, 174, 96, 0.15); color: var(--success); border: 1px solid rgba(39, 174, 96, 0.35); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.7rem; flex-shrink: 0; margin-top: 3px; }
.product-meta { display: flex; justify-content: space-between; align-items: center; padding: 18px 30px; border-top: 1px solid rgba(255, 255, 255, 0.08); background: rgba(255, 255, 255, 0.02); }
.product-price { font-size: 0.85rem; color: var(--text-secondary); }
.product-price strong { font-size: 1.35rem; color: var(--accent); font-family: 'Inter', sans-serif; text-shadow: 0 0 12px rgba(0, 198, 251, 0.3); }

/* ==================== 案例卡 ==================== */
.case-card { background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius-card); overflow: hidden; transition: all 0.3s ease-out; backdrop-filter: blur(10px); }
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); border-color: var(--glass-border-hover); }
.case-img { height: 168px; display: flex; align-items: center; justify-content: center; font-size: 3rem; position: relative; overflow: hidden; }
.case-img--1 { background: linear-gradient(135deg, #0A1B38, #0D3D7A); }
.case-img--2 { background: linear-gradient(135deg, #07162E, #123B77); }
.case-img--3 { background: linear-gradient(135deg, #0A1430, #1F3D8F); }
.case-img--4 { background: linear-gradient(135deg, #071F2E, #0D3D5C); }
.case-img--5 { background: linear-gradient(135deg, #1A1428, #3D1F6E); }
.case-img--6 { background: linear-gradient(135deg, #0B1220, #1A2F5C); }
.case-img .ico { opacity: 0.6; filter: drop-shadow(0 0 14px rgba(0, 198, 251, 0.3)); }
.case-tag { position: absolute; top: 14px; left: 14px; background: rgba(6, 11, 22, 0.7); border: 1px solid rgba(0, 198, 251, 0.35); color: var(--accent); font-size: 0.74rem; padding: 4px 12px; border-radius: 20px; font-weight: 700; backdrop-filter: blur(6px); }
.case-body { padding: 22px 24px; }
.case-body h4 { font-size: 1.05rem; color: var(--text); margin-bottom: 6px; }
.case-product { font-size: 0.8rem; color: var(--accent); font-weight: 700; margin-bottom: 12px; }
.case-desc { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.75; margin-bottom: 16px; }
.case-result { display: flex; gap: 18px; padding-top: 14px; border-top: 1px solid rgba(255, 255, 255, 0.08); }
.case-result-item { flex: 1; }
.case-result-num { font-size: 1.25rem; font-weight: 800; color: var(--accent); font-family: 'Inter', sans-serif; text-shadow: 0 0 10px rgba(0, 198, 251, 0.3); }
.case-result-label { font-size: 0.74rem; color: var(--text-dim); }

/* ==================== 流程步骤 ==================== */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; position: relative; }
.flow::before { content: ''; position: absolute; top: 34px; left: 10%; right: 10%; height: 2px; background: linear-gradient(90deg, rgba(0, 198, 251, 0.2), rgba(0, 198, 251, 0.8)); z-index: 0; }
.flow-step { text-align: center; position: relative; z-index: 1; }
.flow-num { width: 68px; height: 68px; background: rgba(255, 255, 255, 0.05); border: 2px solid var(--accent); color: var(--accent); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; font-weight: 800; margin: 0 auto 16px; transition: all 0.3s ease-out; box-shadow: 0 0 14px rgba(0, 198, 251, 0.12); }
.flow-step:hover .flow-num { background: var(--grad-cta); color: #fff; transform: scale(1.08); box-shadow: 0 0 26px rgba(0, 198, 251, 0.45); }
.flow-step h4 { font-size: 0.98rem; color: var(--text); margin-bottom: 6px; }
.flow-step p { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.65; }

/* ==================== Tab ==================== */
.tabs { display: flex; justify-content: center; gap: 8px; margin-bottom: 40px; flex-wrap: wrap; }
.tab-btn { padding: 11px 28px; border: 1.5px solid var(--border); background: rgba(255, 255, 255, 0.04); border-radius: 30px; font-size: 0.95rem; color: var(--text-secondary); cursor: pointer; transition: all 0.25s ease-out; font-weight: 600; }
.tab-btn.active { background: var(--grad-cta); border-color: transparent; color: #fff; box-shadow: 0 6px 16px rgba(0, 198, 251, 0.3); }
.tab-btn:hover:not(.active) { border-color: var(--accent); color: var(--accent); }
.tab-panel { display: none; animation: fadeIn 0.4s ease-out; }
.tab-panel.active { display: block; }

/* ==================== 行业方案 ==================== */
.solution-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: start; }
.pain-card, .feature-card { background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius-card); padding: 28px; backdrop-filter: blur(10px); }
.pain-card h3, .feature-card h3 { font-size: 1.15rem; color: var(--text); margin-bottom: 18px; }
.pain-card li, .feature-card li { display: flex; align-items: flex-start; gap: 10px; padding: 9px 0; font-size: 0.92rem; color: var(--text-secondary); }
.pain-icon { width: 22px; height: 22px; background: rgba(243, 156, 18, 0.12); color: var(--warning); border: 1px solid rgba(243, 156, 18, 0.3); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.7rem; flex-shrink: 0; margin-top: 3px; }
.sol-check { color: var(--success); font-weight: 800; flex-shrink: 0; }
.solution-result { margin-top: 16px; padding: 13px 16px; background: rgba(39, 174, 96, 0.1); border: 1px solid rgba(39, 174, 96, 0.3); border-radius: var(--radius-sm); font-size: 0.88rem; color: #4CD98A; font-weight: 600; }

/* ==================== FAQ ==================== */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item { background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius-card); margin-bottom: 12px; overflow: hidden; transition: all 0.3s ease; backdrop-filter: blur(10px); }
.faq-item.open { border-color: rgba(0, 198, 251, 0.4); box-shadow: var(--glow-accent); }
.faq-question { width: 100%; padding: 20px 24px; background: none; border: none; text-align: left; font-size: 1rem; font-weight: 600; color: var(--text); cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; transition: color 0.2s; }
.faq-question:hover { color: var(--accent); }
.faq-icon { width: 28px; height: 28px; background: var(--accent-soft); border: 1px solid rgba(0, 198, 251, 0.25); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.9rem; color: var(--accent); flex-shrink: 0; transition: transform 0.3s ease-out; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease-out; }
.faq-answer-inner { padding: 0 24px 20px; font-size: 0.93rem; color: var(--text-secondary); line-height: 1.9; }
.faq-answer-inner strong { color: var(--accent); }

/* ==================== CTA 表单 ==================== */
.cta-section { background: linear-gradient(135deg, #081226 0%, #0D3D7A 100%); position: relative; overflow: hidden; color: #fff; }
.cta-section::before { content: ''; position: absolute; top: -100px; right: -100px; width: 420px; height: 420px; border-radius: 50%; background: radial-gradient(circle, rgba(0, 198, 251, 0.14), transparent 70%); }
.cta-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; position: relative; z-index: 1; }
.cta-text h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 16px; line-height: 1.4; }
.cta-text p { color: rgba(255, 255, 255, 0.78); margin-bottom: 24px; font-size: 1rem; line-height: 1.9; }
.cta-points li { display: flex; align-items: center; gap: 10px; color: #fff; padding: 7px 0; font-size: 0.94rem; }
.cta-check { width: 24px; height: 24px; background: rgba(0, 198, 251, 0.2); border: 1px solid rgba(0, 198, 251, 0.4); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 0.7rem; flex-shrink: 0; }
.cta-form { background: rgba(15, 26, 46, 0.9); backdrop-filter: blur(14px); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: var(--radius-card); padding: 34px; box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4); color: var(--text); }
.cta-form h3 { font-size: 1.3rem; margin-bottom: 8px; color: #fff; }
.cta-form .form-hint { font-size: 0.86rem; color: var(--text-secondary); margin-bottom: 22px; }
.form-group { margin-bottom: 15px; }
.form-group label { display: block; font-size: 0.86rem; color: var(--text); margin-bottom: 6px; font-weight: 600; }
.form-group label .required { color: var(--danger); }
.form-input, .form-select, .form-textarea { width: 100%; padding: 12px 16px; border: 1.5px solid rgba(255, 255, 255, 0.12); border-radius: var(--radius-sm); font-size: 0.95rem; color: var(--text); background: rgba(255, 255, 255, 0.05); transition: all 0.25s ease-out; }
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-dim); }
.form-input:focus, .form-select:focus, .form-textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0, 198, 251, 0.15); }
.form-select option { background: var(--bg-card); color: var(--text); }
.form-textarea { resize: vertical; min-height: 88px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-success { display: none; text-align: center; padding: 40px 20px; }
.form-success.show { display: block; }
.success-icon { width: 64px; height: 64px; background: rgba(39, 174, 96, 0.12); border: 2px solid var(--success); color: var(--success); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 2rem; margin: 0 auto 16px; box-shadow: 0 0 20px rgba(39, 174, 96, 0.3); }
.form-success h4 { color: var(--success); font-size: 1.2rem; margin-bottom: 8px; }
.form-success p { color: var(--text-secondary); font-size: 0.9rem; }
.form-privacy { font-size: 0.78rem; color: var(--text-dim); text-align: center; margin-top: 12px; }

/* ==================== 荣誉徽章 / 标签 ==================== */
.badge-row { display: flex; flex-wrap: wrap; gap: 12px; }
.honor-badge { display: inline-flex; align-items: center; gap: 10px; background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: 12px; padding: 14px 20px; box-shadow: var(--shadow-sm); font-weight: 700; color: var(--text); backdrop-filter: blur(8px); }
.honor-badge .ico { font-size: 1.4rem; }
.tag { display: inline-block; background: var(--accent-soft); border: 1px solid rgba(0, 198, 251, 0.25); color: var(--accent); padding: 3px 12px; border-radius: 20px; font-size: 0.78rem; font-weight: 600; margin: 2px; }

/* ==================== 时间轴 ==================== */
.timeline { position: relative; max-width: 860px; margin: 0 auto; padding-left: 32px; }
.timeline::before { content: ''; position: absolute; left: 8px; top: 4px; bottom: 4px; width: 2px; background: linear-gradient(180deg, rgba(0, 198, 251, 0.5), rgba(0, 198, 251, 0.08)); }
.timeline-item { position: relative; padding-bottom: 30px; }
.timeline-item::before { content: ''; position: absolute; left: -29px; top: 6px; width: 14px; height: 14px; border-radius: 50%; background: var(--accent); border: 3px solid var(--bg); box-shadow: 0 0 0 3px rgba(0, 198, 251, 0.25), 0 0 12px rgba(0, 198, 251, 0.5); }
.timeline-year { font-size: 1.15rem; font-weight: 800; color: var(--accent); margin-bottom: 6px; }
.timeline-item p { color: var(--text-secondary); font-size: 0.94rem; line-height: 1.8; }

/* ==================== 页脚 ==================== */
.footer { background: #04070D; color: rgba(255, 255, 255, 0.6); padding: 60px 0 0; border-top: 1px solid rgba(255, 255, 255, 0.06); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 44px; margin-bottom: 44px; }
.footer-brand h4 { color: #fff; font-size: 1.15rem; margin-bottom: 16px; }
.footer-brand p { font-size: 0.88rem; line-height: 1.9; margin-bottom: 16px; }
.footer-col h5 { color: #fff; font-size: 0.98rem; margin-bottom: 16px; }
.footer-col a { display: block; font-size: 0.88rem; padding: 5px 0; transition: color 0.2s; }
.footer-col a:hover { color: var(--accent); }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; font-size: 0.88rem; padding: 5px 0; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 22px 0; text-align: center; font-size: 0.82rem; }
.footer-bottom a { color: rgba(255, 255, 255, 0.7); }

/* ==================== 返回顶部 / 进度条 ==================== */
#progress-bar { position: fixed; top: 0; left: 0; width: 0%; height: 3px; background: var(--grad-cta); z-index: 9999; transition: width 0.1s linear; box-shadow: 0 0 10px rgba(0, 198, 251, 0.6); }
.back-top { position: fixed; right: 26px; bottom: 26px; width: 46px; height: 46px; border-radius: 50%; background: var(--grad-cta); color: #fff; border: none; font-size: 1.1rem; box-shadow: 0 8px 20px rgba(0, 198, 251, 0.3); opacity: 0; visibility: hidden; transform: translateY(12px); transition: all 0.3s ease-out; z-index: 900; }
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }

/* ==================== 动效 ==================== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ==================== 文章正文（博客） ==================== */
.article-body { font-size: 0.98rem; color: var(--text-secondary); line-height: 2; }
.article-body h2 { font-size: 1.35rem; color: var(--text); margin: 32px 0 14px; padding-left: 14px; border-left: 3px solid var(--accent); }
.article-body h3 { font-size: 1.12rem; color: var(--text); margin: 24px 0 10px; }
.article-body p { margin-bottom: 14px; }
.article-body ul, .article-body ol { padding-left: 22px; margin-bottom: 14px; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 6px; }
.article-body table { width: 100%; border-collapse: collapse; margin: 16px 0; background: var(--bg-card); border: 1px solid var(--glass-border); border-radius: 8px; overflow: hidden; }
.article-body th, .article-body td { padding: 12px 14px; border: 1px solid rgba(255, 255, 255, 0.07); font-size: 0.9rem; text-align: left; }
.article-body th { background: rgba(0, 198, 251, 0.1); color: var(--text); font-weight: 700; }
.article-body td { color: var(--text-secondary); }
.article-body strong { color: var(--text); }
.article-body a { color: var(--accent); }

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-media { max-width: 640px; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .flow::before { display: none; }
  .trust-bar-inner { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links, .nav-phone { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.mobile-open { display: flex; flex-direction: column; position: fixed; top: var(--nav-height); left: 0; right: 0; background: rgba(6, 11, 22, 0.98); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(255, 255, 255, 0.08); padding: 16px 24px; gap: 0; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4); }
  .nav-links.mobile-open a { padding: 14px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.06); font-size: 1rem; color: var(--text); }
  .nav-links.mobile-open a:last-child { border-bottom: none; }
}
@media (max-width: 768px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .solution-layout, .cta-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero { padding-top: calc(var(--nav-height) + 36px); }
  .hero-badge { left: 10px; }
  .glow-orb { opacity: 0.08; filter: blur(60px); }
}