/* =========================================================
   云楚商协智慧管理系统 · 官网前端样式
   设计语言：网络科技公司蓝（智创科技配色体系）
   令牌：--primary #1a365d / --accent #3182ce / 蓝紫渐变
   复用平台既有类名，保持后台可编辑内容结构不变。
   ========================================================= */

/* ---------------- 设计令牌 ---------------- */
:root {
  --primary: #1a365d;
  --primary-light: #2c5282;
  --accent: #3182ce;
  --accent-light: #63b3ed;
  --accent-gradient: linear-gradient(135deg, #3182ce 0%, #2c5282 100%);
  --dark: #1a202c;
  --gray-900: #171923;
  --gray-800: #2d3748;
  --gray-600: #4a5568;
  --gray-500: #718096;
  --gray-400: #a0aec0;
  --gray-300: #cbd5e0;
  --gray-200: #e2e8f0;
  --gray-100: #f7fafc;
  --gray-50: #f0f4f8;
  --white: #ffffff;
  --bg: #ffffff;
  --bg-alt: #f7fafc;
  --text: #2d3748;
  --text-light: #718096;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
  --shadow-blue: 0 16px 40px rgba(49, 130, 206, 0.18);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
  --header-height: 72px;
}

/* ---------------- 基础 ---------------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; display: block; }
ul { list-style: none; }
.wrap { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 30px; font-size: 0.95rem; font-weight: 600; border-radius: var(--radius-sm);
  border: none; cursor: pointer; transition: var(--transition); white-space: nowrap;
}
.btn-primary { background: var(--accent-gradient); color: var(--white); box-shadow: 0 4px 14px rgba(49, 130, 206, 0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(49, 130, 206, 0.45); }
.btn-ghost { background: transparent; color: var(--primary); border: 2px solid var(--gray-200); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); background: var(--gray-50); }
.btn-outline { background: transparent; color: var(--accent); border: 2px solid rgba(255,255,255,.55); }
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: #fff; color:#fff; }
.btn-white { background: var(--white); color: var(--primary); box-shadow: var(--shadow); }
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-lg { padding: 15px 40px; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* =====================================================
   顶部导航（参考模板 .header / .nav / .logo）
   ===================================================== */
.site-hd {
  position: fixed; top: 0; left: 0; right: 0; height: var(--header-height);
  background: rgba(255, 255, 255, 0.92); backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--gray-200);
  z-index: 1000; transition: var(--transition);
}
.site-hd.scrolled { box-shadow: var(--shadow-sm); }
.site-hd-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; gap: 20px; }
.brand { display: flex; align-items: center; gap: 11px; }
.brand-mk {
  width: 38px; height: 38px; border-radius: 10px; background: var(--accent-gradient);
  color: #fff; font-weight: 800; display: flex; align-items: center; justify-content: center;
  font-size: 19px; box-shadow: 0 6px 16px rgba(49, 130, 206, 0.32);
}
.brand-tx { display: flex; flex-direction: column; line-height: 1.15; }
.brand-tx b { font-size: 17px; color: var(--primary); letter-spacing: .5px; }
.brand-tx i { font-size: 11px; color: var(--text-light); font-style: normal; font-weight: 500; }
.site-nav { display: flex; gap: 4px; margin-left: auto; }
.site-nav a {
  padding: 8px 16px; border-radius: var(--radius-sm); font-size: 0.95rem; font-weight: 500;
  color: var(--gray-800); position: relative;
}
.site-nav a:hover { color: var(--accent); background: var(--gray-50); }
.site-nav a.active { color: var(--accent); font-weight: 600; }
.site-nav a.active::after {
  content: ""; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
  width: 20px; height: 3px; background: var(--accent); border-radius: 2px;
}
.site-hd-cta { display: flex; gap: 10px; margin-left: 18px; }
.site-hd-cta .btn { padding: 10px 22px; font-size: 0.9rem; }
.site-menu-btn { display: none; background: none; border: none; font-size: 26px; color: var(--primary); cursor: pointer; }
.site-mobile-nav {
  display: none; flex-direction: column; padding: 10px 16px 18px; background: #fff;
  border-bottom: 1px solid var(--gray-200);
}
.site-mobile-nav.open { display: flex; }
.site-mobile-nav a { padding: 13px 6px; border-radius: 10px; font-size: 16px; color: var(--gray-800); border-bottom: 1px solid var(--gray-100); }
.site-mobile-nav a.active { color: var(--accent); font-weight: 700; }
.site-mobile-nav .mobile-cta { background: var(--accent-gradient); color: #fff; text-align: center; margin-top: 10px; font-weight: 700; border-bottom: none; }

/* ---------------- 主体 / 区块通用 ---------------- */
.site-main { display: block; padding-top: var(--header-height); }
.section { padding: 96px 0; }
.section.soft { background: var(--bg-alt); }
.sec-head { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.sec-head .eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 2px;
  color: var(--accent); background: rgba(49, 130, 206, 0.08); padding: 5px 16px;
  border-radius: 999px; margin-bottom: 16px;
}
.sec-head h2 { font-size: 34px; line-height: 1.3; color: var(--primary); letter-spacing: .3px; }
.sec-head p { margin-top: 14px; color: var(--text-light); font-size: 16px; line-height: 1.8; }

/* =====================================================
   Hero（参考模板 .hero，浅蓝渐变 + 右侧产品窗 + 浮动卡）
   ===================================================== */
.hero {
  position: relative; overflow: hidden; padding: 60px 0 80px;
  background: linear-gradient(135deg, #f0f4f8 0%, #e6f0fa 50%, #f0f4f8 100%);
}
.hero::before {
  content: ""; position: absolute; top: -200px; right: -160px; width: 560px; height: 560px;
  background: radial-gradient(circle, rgba(49, 130, 206, 0.12) 0%, transparent 70%); border-radius: 50%;
}
.hero::after {
  content: ""; position: absolute; bottom: -160px; left: -140px; width: 480px; height: 480px;
  background: radial-gradient(circle, rgba(99, 179, 237, 0.1) 0%, transparent 70%); border-radius: 50%;
}
.hero .container {
  position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr 0.95fr;
  gap: 40px; align-items: center;
}
.hero-content { max-width: 600px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px;
  background: rgba(49, 130, 206, 0.1); border: 1px solid rgba(49, 130, 206, 0.2);
  border-radius: 100px; font-size: 0.85rem; color: var(--accent); font-weight: 500; margin-bottom: 22px;
}
.hero-badge .dot { width: 8px; height: 8px; background: var(--accent); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: .5; transform: scale(1.2); } }
.hero h1 { font-size: 3.2rem; line-height: 1.2; font-weight: 800; color: var(--dark); letter-spacing: -0.5px; margin-bottom: 22px; }
.hero h1 .gradient-text { background: var(--accent-gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero p.lead { font-size: 1.15rem; color: var(--gray-600); line-height: 1.85; margin-bottom: 34px; max-width: 540px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 44px; margin-top: 52px; padding-top: 36px; border-top: 1px solid var(--gray-200); }
.hero-stat .num { font-size: 2.1rem; font-weight: 800; color: var(--primary); line-height: 1; }
.hero-stat .num .suffix { font-size: 1.3rem; color: var(--accent-light); }
.hero-stat .label { font-size: 0.85rem; color: var(--gray-500); margin-top: 6px; }

/* Hero 右侧视觉 */
.hero-visual { position: relative; }
.hero-visual .prod-window { margin: 0; }
.float-card {
  position: absolute; background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow-lg);
  padding: 14px 18px; display: flex; align-items: center; gap: 12px; animation: floatY 4s ease-in-out infinite;
}
.float-card .icon { width: 38px; height: 38px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; flex-shrink: 0; }
.float-card-1 { top: 8%; left: -34px; animation-delay: 0s; }
.float-card-2 { bottom: 12%; right: -26px; animation-delay: 1.5s; }
.float-card .info .title { font-size: 0.8rem; font-weight: 700; color: var(--dark); }
.float-card .info .desc { font-size: 0.7rem; color: var(--gray-500); }
@keyframes floatY { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* =====================================================
   卡片网格 / 服务卡（参考模板 .services-grid / .service-card）
   ===================================================== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.card { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-lg); padding: 30px; box-shadow: var(--shadow); transition: var(--transition); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--gray-200); }
.feat-card { position: relative; overflow: hidden; padding: 34px 28px; }
.feat-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--accent-gradient); transform: scaleX(0); transform-origin: left; transition: var(--transition);
}
.feat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.feat-card:hover::before { transform: scaleX(1); }
.feat-card .ic {
  width: 56px; height: 56px; border-radius: var(--radius); display: flex; align-items: center;
  justify-content: center; font-size: 1.6rem; margin-bottom: 22px; background: var(--gray-50); transition: var(--transition);
}
.feat-card:hover .ic { background: var(--accent-gradient); transform: scale(1.05); }
.feat-card h3 { font-size: 1.2rem; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.feat-card p { color: var(--text-light); font-size: 0.95rem; line-height: 1.75; }

/* =====================================================
   CTA 区域（参考模板 .cta-box）
   ===================================================== */
.band {
  background: var(--accent-gradient); border-radius: var(--radius-lg); padding: 60px;
  text-align: center; position: relative; overflow: hidden;
  display: flex; flex-direction: column; align-items: center; gap: 18px;
}
.band::before {
  content: ""; position: absolute; top: -50px; right: -50px; width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%); border-radius: 50%;
}
.band::after {
  content: ""; position: absolute; bottom: -80px; left: -80px; width: 250px; height: 250px;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%); border-radius: 50%;
}
.band > div { position: relative; z-index: 2; }
.band h3 { position: relative; z-index: 2; font-size: 2rem; font-weight: 800; color: #fff; }
.band p { position: relative; z-index: 2; font-size: 1.05rem; color: rgba(255, 255, 255, 0.85); max-width: 560px; margin: 0 auto; }
.band .btn, .band a.btn { position: relative; z-index: 2; }
.band .btn-primary { background: #fff; color: var(--primary); box-shadow: 0 8px 24px rgba(0,0,0,.15); }
.band .btn-primary:hover { transform: translateY(-2px); }
.band .btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.6); }
.band .btn-ghost:hover { background: rgba(255,255,255,.12); border-color: #fff; }

/* =====================================================
   页面顶部 Hero（深色蓝，支持 bg_image 内联背景）
   ===================================================== */
.page-hero {
  position: relative; overflow: hidden; color: #fff; padding: 56px 0 72px;
  background:
    radial-gradient(1100px 480px at 85% -15%, rgba(99,179,237,.30), transparent 60%),
    radial-gradient(900px 460px at 5% 0%, rgba(49,130,206,.34), transparent 55%),
    linear-gradient(160deg, #1a365d 0%, #2c5282 55%, #1a365d 100%);
}
.page-hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(26,54,93,.45), rgba(44,82,130,.2)); z-index: 1; }
.page-hero .wrap { position: relative; z-index: 2; }
.crumb { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: rgba(255,255,255,.72); margin-bottom: 22px; justify-content: center; }
.crumb a { color: rgba(255,255,255,.8); }
.crumb a:hover { color: #fff; }
.crumb span { opacity: .5; }
.crumb b { font-weight: 600; color: #fff; }
.page-hero .sec-head { text-align: center; margin: 0; }
.page-hero .eyebrow { background: rgba(255,255,255,.12); color: #fff; border: 1px solid rgba(255,255,255,.2); margin-bottom: 16px; }
.page-hero h2 { font-size: 38px; color: #fff; margin-bottom: 14px; letter-spacing: .5px; }
.page-hero p { color: rgba(255,255,255,.86); font-size: 17px; max-width: 660px; margin: 0 auto; line-height: 1.8; }
.page-hero-sm { padding: 72px 0 60px; }
.page-hero-sm h2 { font-size: 30px; }

/* ---------------- 单页内容排版 ---------------- */
.page-section { padding: 56px 0 72px; }
.page-prose { width: 100%; max-width: 980px; margin: 0 auto; font-size: 16px; color: var(--text); line-height: 1.9; }
.page-prose h2 { font-size: 30px; color: var(--primary); margin: 0 0 18px; letter-spacing: .4px; }
.page-prose h3 { font-size: 22px; color: var(--primary); margin: 26px 0 12px; }
.page-prose p { margin: 0 0 16px; }
.page-prose ul, .page-prose ol { margin: 0 0 18px; padding-left: 22px; }
.page-prose li { margin: 8px 0; }
.page-prose a { color: var(--accent); text-decoration: underline; }
.page-prose img { max-width: 100%; border-radius: var(--radius-sm); margin: 14px 0; }
.page-prose strong { color: var(--primary); }

/* =====================================================
   案例卡片（参考模板 .cases-grid / .case-card）
   ===================================================== */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
  background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow); transition: var(--transition);
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.case-card .cc-cover {
  height: 168px; background: var(--accent-gradient); position: relative; display: flex;
  align-items: center; justify-content: center; font-size: 42px; color: #fff; filter: drop-shadow(0 8px 18px rgba(0,0,0,.25));
}
.case-card .cc-cover { background-size: cover; background-position: center; }
.case-card .cc-body { padding: 22px 24px 26px; }
.case-card .cc-org { font-size: 13px; color: var(--accent); font-weight: 700; }
.case-card h3 { font-size: 19px; color: var(--primary); margin: 8px 0 10px; line-height: 1.4; }
.case-card p { color: var(--text-light); font-size: 14px; line-height: 1.75; }
.case-card .cc-meta { color: var(--text-light); font-size: 13px; margin-bottom: 8px; }
.case-card .more { margin-top: 16px; color: var(--accent); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }
.case-card .more .arrow { transition: transform .25s ease; }
.case-card:hover .more .arrow { transform: translateX(5px); }
.case-card .cc-metrics { display: flex; gap: 22px; margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--gray-200); }
.case-card .cc-metrics .m .n { font-size: 20px; font-weight: 800; color: var(--primary); line-height: 1.2; }
.case-card .cc-metrics .m .l { font-size: 12px; color: var(--text-light); margin-top: 2px; }

/* =====================================================
   新闻卡片（参考模板 .news-grid / .news-card）
   ===================================================== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); }
.news-card:hover { border-color: var(--accent); box-shadow: var(--shadow-blue); transform: translateY(-4px); }
.news-cover { height: 172px; background-size: cover; background-position: center; background-image: var(--accent-gradient); position: relative; display: flex; align-items: center; justify-content: center; }
.news-cover .cover-ic { font-size: 44px; opacity: .94; filter: drop-shadow(0 4px 10px rgba(0,0,0,.28)); }
.news-cover .cat { position: absolute; left: 16px; bottom: 14px; background: rgba(255,255,255,.92); color: var(--accent); font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 999px; }
.news-body { padding: 20px 22px 24px; display: flex; flex-direction: column; }
.news-body .date { color: var(--text-light); font-size: 13px; }
.news-body h3 { font-size: 18px; color: var(--primary); margin: 8px 0 10px; line-height: 1.4; }
.news-body p { color: var(--text-light); font-size: 14px; line-height: 1.7; flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-body .more { margin-top: 14px; color: var(--accent); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }
.news-body .more .arrow { transition: transform .25s ease; }
.news-card:hover .more .arrow { transform: translateX(5px); }

/* 焦点新闻大卡 */
.news-feature { display: grid; grid-template-columns: 1.1fr 1fr; gap: 0; align-items: center; background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); }
.news-feature:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.news-feature .nf-cover { height: 320px; background-size: cover; background-position: center; background-image: var(--accent-gradient); display: flex; align-items: center; justify-content: center; }
.news-feature .nf-cover .cover-ic { font-size: 64px; opacity: .94; filter: drop-shadow(0 6px 14px rgba(0,0,0,.3)); }
.news-feature .nf-body { padding: 38px 40px; }
.news-feature .nf-body .date { color: var(--text-light); font-size: 13px; }
.news-feature .nf-body h3 { font-size: 25px; color: var(--primary); margin: 10px 0 12px; line-height: 1.35; }
.news-feature .nf-body p { color: var(--text-light); font-size: 15px; line-height: 1.8; margin-bottom: 18px; }
.news-feature .nf-body .more { color: var(--accent); font-weight: 600; font-size: 14px; display: inline-flex; gap: 6px; align-items: center; }
.news-feature .nf-body .more .arrow { transition: transform .25s ease; }
.news-feature:hover .nf-body .more .arrow { transform: translateX(5px); }
.news-section { padding: 56px 0 72px; }
.empty-tip { text-align: center; color: var(--text-light); font-size: 16px; padding: 64px 0; }

/* 文章详情 */
.article-section { padding: 56px 0 72px; }
.article-cover { max-width: 900px; margin: 0 auto 32px; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); }
.article-cover img { width: 100%; display: block; aspect-ratio: 16/9; object-fit: cover; }
.article { max-width: 820px; margin: 0 auto; background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-lg); padding: 44px 48px; box-shadow: var(--shadow); }
.article .a-meta { color: var(--text-light); font-size: 14px; margin-bottom: 8px; }
.article h1 { font-size: 32px; color: var(--primary); line-height: 1.3; margin-bottom: 22px; }
.article .a-body { font-size: 16.5px; color: var(--text); line-height: 1.95; white-space: pre-line; }
.article .a-body :where(h2,h3,p,ul,ol,blockquote,img) { margin: 0 0 16px; }
.article .a-back { display: inline-block; margin-top: 30px; color: var(--accent); font-weight: 600; }

/* =====================================================
   联系 / 试用（参考模板 .contact-grid）
   ===================================================== */
.contact-section, .trial-section { padding: 56px 0 72px; }
.contact-layout { display: grid; grid-template-columns: 380px 1fr; gap: 32px; align-items: stretch; }
.info-panel, .form-panel { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-lg); padding: 34px; box-shadow: var(--shadow); height: 100%; }
.info-panel { background: var(--primary); color: #fff; position: relative; overflow: hidden; }
.info-panel::before { content: ""; position: absolute; top: -60px; right: -60px; width: 240px; height: 240px; background: radial-gradient(circle, rgba(99,179,237,.35) 0%, transparent 70%); border-radius: 50%; }
.info-panel h3, .form-panel h3, .panel-title { font-size: 17px; color: var(--primary); margin: 0 0 16px; padding-bottom: 12px; border-bottom: 1px solid var(--gray-200); position: relative; z-index: 2; }
.info-panel h3, .info-panel .panel-title { color: #fff; border-bottom-color: rgba(255,255,255,.12); }
.info-divider { height: 1px; background: var(--gray-200); margin: 18px 0; }
.info-panel .info-divider { background: rgba(255,255,255,.12); }
.info-line { display: flex; gap: 12px; align-items: flex-start; padding: 11px 0; font-size: 15px; position: relative; z-index: 2; }
.info-line .i-ic { color: var(--accent-light); font-size: 18px; line-height: 1.4; flex-shrink: 0; }
.info-line > div { display: flex; flex-direction: column; gap: 2px; }
.info-line .i-lab { color: rgba(255,255,255,.55); font-size: 13px; }
.info-line .i-val { color: #fff; font-weight: 500; }
.info-divider + .panel-title { margin-top: 26px; }
.form-panel .field:last-of-type { margin-bottom: 22px; }
.contact-map { height: 188px; border-radius: var(--radius); overflow: hidden; position: relative; background: var(--primary-light); margin-bottom: 20px; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,.8); font-size: 14px; text-align: center; padding: 0 20px; }
.contact-map::after { content: ""; position: absolute; inset: 0; opacity: .22; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32'%3E%3Cpath d='M0 31h32M31 0v32' stroke='rgba(255,255,255,.3)'/%3E%3C/svg%3E"); }

/* 表单 */
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 14px; color: var(--text); margin-bottom: 7px; font-weight: 500; }
.field input, .field textarea, .field select {
  width: 100%; padding: 12px 14px; border: 1px solid var(--gray-300); border-radius: var(--radius-sm);
  font-size: 15px; font-family: inherit; color: var(--text); background: var(--gray-50); transition: var(--transition);
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); background: #fff; box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.12); }
.field textarea { resize: vertical; min-height: 110px; }
.form-note { font-size: 13px; color: var(--text-light); margin-top: 12px; }
.alert { margin-bottom: 18px; padding: 13px 16px; border-radius: var(--radius-sm); font-size: 14.5px; font-weight: 500; }
.alert-success { background: rgba(72, 187, 120, 0.1); color: #2f855a; border: 1px solid rgba(72, 187, 120, 0.3); }
.alert-error { background: #fef2f2; color: #dc2626; border: 1px solid #fbcfcf; }

/* 试用页介绍面板 */
.intro-panel { display: flex; flex-direction: column; }
.intro-panel .intro-head { margin-bottom: 24px; }
.intro-panel .intro-head .eyebrow { margin-bottom: 12px; }
.intro-panel .intro-head h3 { font-size: 24px; color: var(--primary); line-height: 1.4; margin-bottom: 10px; }
.intro-panel .intro-head p { color: var(--text-light); font-size: 14.5px; line-height: 1.7; }
.intro-panel .intro-list { display: flex; flex-direction: column; gap: 16px; margin-top: 4px; }
.intro-item { display: flex; gap: 12px; align-items: flex-start; }
.intro-item .dot { flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%; background: var(--accent-gradient); color: #fff; font-size: 13px; font-weight: 800; display: flex; align-items: center; justify-content: center; }
.intro-item b { color: var(--primary); font-size: 15px; }
.intro-item p { color: var(--text-light); font-size: 13.5px; margin: 2px 0 0; line-height: 1.6; }
.intro-extra { margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--gray-200); color: var(--text); font-size: 14px; line-height: 1.8; }
.intro-extra :where(h2,h3,p,ul,ol) { margin: 0 0 12px; }

/* 步骤 */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 8px; }
.step { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-lg); padding: 24px 18px; text-align: center; transition: var(--transition); }
.step:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.step .s-n { width: 40px; height: 40px; border-radius: 50%; background: var(--accent-gradient); color: #fff; font-weight: 800; display: flex; align-items: center; justify-content: center; margin: 0 auto 12px; font-size: 1.05rem; }
.step .s-t { font-weight: 700; color: var(--primary); }
.step .s-d { color: var(--text-light); font-size: 13.5px; margin-top: 6px; }
.steps-compact { flex: 1; display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; align-content: end; }
.steps-compact .step { display: flex; flex-direction: column; align-items: flex-start; text-align: left; padding: 18px; height: 100%; }

/* =====================================================
   产品界面浏览器框（参考 niushop + 模板 dashboard）
   ===================================================== */
.prod-window { background: #fff; border-radius: 14px; overflow: hidden; box-shadow: 0 40px 90px rgba(26,54,93,.32); border: 1px solid rgba(255,255,255,.5); }
.pw-bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; background: var(--gray-100); border-bottom: 1px solid var(--gray-200); }
.pw-dots { display: flex; gap: 6px; }
.pw-dots i { width: 11px; height: 11px; border-radius: 50%; display: block; }
.pw-dots i:nth-child(1) { background: #ff5f57; }
.pw-dots i:nth-child(2) { background: #febc2e; }
.pw-dots i:nth-child(3) { background: #28c840; }
.pw-url { margin-left: 14px; flex: 1; background: #fff; border: 1px solid var(--gray-200); border-radius: 999px; padding: 6px 14px; font-size: 13px; color: var(--gray-500); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pw-body { display: grid; grid-template-columns: 210px 1fr; min-height: 380px; background: var(--gray-50); }
.pw-side { background: var(--primary); color: #c5d8f0; padding: 18px 14px; }
.pw-logo { display: flex; align-items: center; gap: 9px; color: #fff; font-weight: 800; font-size: 15px; margin-bottom: 18px; }
.pw-logo .mk { width: 26px; height: 26px; border-radius: 8px; background: var(--accent-gradient); display: flex; align-items: center; justify-content: center; font-size: 14px; }
.pw-nav { list-style: none; }
.pw-nav li { padding: 9px 12px; border-radius: 8px; font-size: 13.5px; margin-bottom: 4px; color: #aebfd8; }
.pw-nav li.on { background: rgba(255,255,255,.14); color: #fff; font-weight: 600; }
.pw-main { padding: 20px; }
.pw-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 14px; }
.pw-stat { background: #fff; border: 1px solid var(--gray-200); border-radius: 12px; padding: 13px 14px; }
.pw-stat .n { font-size: 21px; font-weight: 800; color: var(--accent); line-height: 1.2; }
.pw-stat .l { font-size: 12px; color: var(--gray-500); margin-top: 3px; }
.pw-chart { background: #fff; border: 1px solid var(--gray-200); border-radius: 12px; padding: 14px; height: 140px; display: flex; align-items: flex-end; gap: 9px; }
.pw-chart .pw-bar { flex: 1; border-radius: 6px 6px 0 0; background: var(--accent-gradient); }
.pw-list { margin-top: 14px; background: #fff; border: 1px solid var(--gray-200); border-radius: 12px; padding: 6px 14px; }
.pw-list .pw-row { display: flex; justify-content: space-between; align-items: center; font-size: 13px; padding: 9px 0; border-bottom: 1px dashed #eef1f6; color: var(--gray-600); }
.pw-list .pw-row:last-child { border-bottom: none; }
.pw-list .pw-row .tag { background: rgba(49,130,206,.1); color: var(--accent); font-size: 11px; font-weight: 700; padding: 2px 9px; border-radius: 999px; }
.pw-list .pw-row .amt { font-weight: 700; color: var(--primary); }

/* =====================================================
   在线演示页（参考模板 .demo-stage / .demo-tabs）
   ===================================================== */
.demo-stage { max-width: 1000px; margin: 0 auto; }
.demo-stage .prod-window { margin-bottom: 26px; }
.demo-tabs { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.demo-tab { display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 999px; border: 1px solid var(--gray-200); background: #fff; color: var(--text); font-size: 15px; font-weight: 600; cursor: pointer; transition: var(--transition); }
.demo-tab .dt-ic { font-size: 18px; }
.demo-tab:hover { border-color: var(--accent); color: var(--accent); }
.demo-tab.on { background: var(--accent-gradient); color: #fff; border-color: transparent; box-shadow: 0 8px 20px rgba(49,130,206,.28); }
.demo-cap { text-align: center; max-width: 680px; margin: 26px auto 0; }
.demo-cap h3 { font-size: 22px; color: var(--primary); margin-bottom: 10px; }
.demo-cap p { color: var(--text-light); font-size: 16px; line-height: 1.8; }

/* =====================================================
   图文交替功能展示（参考模板 showcase）
   ===================================================== */
.showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 54px; align-items: center; max-width: 1080px; margin: 0 auto; }
.showcase + .showcase { margin-top: 64px; }
.sc-text .sc-tag { display: inline-block; font-size: 13px; font-weight: 700; color: var(--accent); background: rgba(49,130,206,.08); padding: 5px 14px; border-radius: 999px; margin-bottom: 16px; }
.sc-text h3 { font-size: 26px; color: var(--primary); line-height: 1.3; margin-bottom: 14px; }
.sc-text p { color: var(--text-light); font-size: 16px; line-height: 1.85; margin-bottom: 18px; }
.sc-text .sc-list { list-style: none; display: flex; flex-direction: column; gap: 11px; }
.sc-text .sc-list li { position: relative; padding-left: 26px; color: var(--text); font-size: 15px; }
.sc-text .sc-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 800; }
.sc-media .mini-mock { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-lg); box-shadow: var(--shadow); overflow: hidden; }
.mini-mock .mm-head { display: flex; align-items: center; justify-content: space-between; padding: 13px 16px; border-bottom: 1px solid var(--gray-200); font-weight: 700; color: var(--primary); font-size: 15px; }
.mini-mock .mm-head .mm-dot { width: 9px; height: 9px; border-radius: 50%; background: #28c840; display: inline-block; margin-right: 7px; vertical-align: middle; }
.mini-mock .mm-body { padding: 16px; }
.mini-mock .mm-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 14px; }
.mini-mock .mm-stat { background: var(--gray-50); border-radius: 10px; padding: 12px; }
.mini-mock .mm-stat .n { font-size: 19px; font-weight: 800; color: var(--accent); }
.mini-mock .mm-stat .l { font-size: 12px; color: var(--gray-500); }
.mini-mock .mm-bars { display: flex; align-items: flex-end; gap: 8px; height: 96px; }
.mini-mock .mm-bars i { flex: 1; border-radius: 6px 6px 0 0; background: var(--accent-gradient); display: block; }
.mini-mock .mm-lines .mm-line { height: 10px; border-radius: 999px; background: #eef1f6; margin-bottom: 9px; }
.mini-mock .mm-lines .mm-line.w70 { width: 70%; }
.mini-mock .mm-lines .mm-line.w90 { width: 90%; }
.mini-mock .mm-lines .mm-line.w55 { width: 55%; }
.showcase.reverse .sc-media { order: -1; }

/* =====================================================
   数据一览（深色蓝带，参考模板 .stats-section）
   ===================================================== */
.stat-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; background: var(--primary); color: #fff; border-radius: var(--radius-lg); padding: 44px 36px; box-shadow: var(--shadow); position: relative; overflow: hidden; }
.stat-band::before { content: ""; position: absolute; top: -100px; right: -100px; width: 360px; height: 360px; background: radial-gradient(circle, rgba(99,179,237,.3) 0%, transparent 70%); border-radius: 50%; }
.stat-band > div { position: relative; z-index: 2; text-align: center; }
.stat-band .s-num { font-size: 38px; font-weight: 800; color: #fff; line-height: 1; }
.stat-band .s-num .suffix { font-size: 22px; color: var(--accent-light); }
.stat-band .s-lab { margin-top: 8px; color: rgba(255,255,255,.7); font-size: 14px; }

/* =====================================================
   关于我们（参考模板 .about-intro / .values-grid）
   ===================================================== */
.about-story { max-width: 900px; margin: 0 auto; text-align: center; }
.about-story .as-head { margin-bottom: 24px; }
.about-story .as-head .eyebrow { margin-bottom: 14px; }
.about-story .as-head h3 { font-size: 28px; color: var(--primary); line-height: 1.45; }
.about-story .as-body { text-align: left; }
.about-story .as-body > p:first-of-type { font-size: 18px; color: var(--text); line-height: 1.95; }
.value-card { text-align: center; padding: 36px 24px; background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-lg); transition: var(--transition); }
.value-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--accent); }
.value-card .ic { width: 60px; height: 60px; margin: 0 auto 18px; border-radius: 50%; background: rgba(49,130,206,.08); display: flex; align-items: center; justify-content: center; font-size: 1.7rem; }
.value-card h3 { font-size: 18px; color: var(--primary); margin-bottom: 8px; }
.value-card p { color: var(--text-light); font-size: 14.5px; line-height: 1.7; }

/* 产品服务 · 媒体仿真（参考模板 .service-detail） */
.feat-row { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: center; max-width: 1080px; margin: 0 auto; }
.feat-row + .feat-row { margin-top: 60px; }
.feat-row .fr-text .fr-tag { display: inline-block; font-size: 13px; font-weight: 700; color: var(--accent); background: rgba(49,130,206,.08); padding: 5px 14px; border-radius: 999px; margin-bottom: 16px; }
.feat-row .fr-text h3 { font-size: 25px; color: var(--primary); margin-bottom: 14px; line-height: 1.3; }
.feat-row .fr-text p { color: var(--text-light); font-size: 16px; line-height: 1.85; }
.feat-row .fr-media { border-radius: var(--radius-lg); background: var(--accent-gradient); position: relative; overflow: hidden; display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow); min-height: 280px; }
.feat-row.reverse .fr-media { order: -1; }
.feat-row .fr-mock { width: 100%; aspect-ratio: 4/3; border-radius: 14px; overflow: hidden; background: #fff; border: 1px solid rgba(255,255,255,.6); box-shadow: 0 24px 60px rgba(26,54,93,.32); display: flex; flex-direction: column; }
.fr-mock .fr-mock-bar { display: flex; gap: 6px; padding: 12px 14px; background: var(--gray-100); border-bottom: 1px solid var(--gray-200); }
.fr-mock .fr-mock-bar i { width: 10px; height: 10px; border-radius: 50%; display: block; background: #d6deea; }
.fr-mock .fr-mock-bar i:nth-child(1) { background: #ff5f57; }
.fr-mock .fr-mock-bar i:nth-child(2) { background: #febc2e; }
.fr-mock .fr-mock-bar i:nth-child(3) { background: #28c840; }
.fr-mock .fr-mock-body { padding: 18px; display: flex; flex-direction: column; gap: 14px; flex: 1; background: var(--gray-50); }
.fr-mock .fr-mock-line { height: 12px; border-radius: 999px; background: #e6ebf3; }
.fr-mock .fr-mock-line.w80 { width: 80%; }
.fr-mock .fr-mock-line.w70 { width: 70%; }
.fr-mock .fr-mock-line.w60 { width: 60%; }
.fr-mock .fr-mock-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.fr-mock .fr-mock-grid span { height: 54px; border-radius: 10px; background: var(--accent-gradient); opacity: .92; }

/* 产品服务：卡片交互与核心价值 triad */
.feat-card .card-more { display: inline-block; margin-top: 18px; font-size: 14px; font-weight: 700; color: var(--accent); transition: var(--transition); }
.feat-card .card-more:hover { color: var(--primary); transform: translateX(4px); }
.feat-row .fr-text .fr-points { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 12px; }
.feat-row .fr-text .fr-points li { position: relative; padding-left: 28px; color: var(--text-light); font-size: 15px; line-height: 1.5; }
.feat-row .fr-text .fr-points li::before { content: "✓"; position: absolute; left: 0; top: 0; width: 20px; height: 20px; border-radius: 50%; background: rgba(49,130,206,.1); color: var(--accent); font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center; }

/* 产品模块仿真预览（替代纯占位线条，呈现真实后台界面观感） */
.fr-mock .fr-mock-app { flex: 1; display: grid; grid-template-columns: 66px 1fr; min-height: 0; }
.fr-mock .fr-mock-side { background: var(--primary); padding: 18px 0; display: flex; flex-direction: column; align-items: center; gap: 16px; }
.fr-mock .fr-mock-side .ms-i { width: 28px; height: 28px; border-radius: 8px; background: rgba(255,255,255,.16); }
.fr-mock .fr-mock-side .ms-i.active { background: var(--accent-light); box-shadow: 0 4px 12px rgba(49,130,206,.5); }
.fr-mock .fr-mock-main { background: var(--gray-50); padding: 16px; display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.fr-mock .fr-mock-hd { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--dark); font-size: 15px; }
.fr-mock .fr-mock-hd .fm-ic { width: 30px; height: 30px; border-radius: 8px; background: var(--accent-gradient); display: flex; align-items: center; justify-content: center; font-size: 15px; }
.fr-mock .fr-mock-stats { display: flex; flex-direction: column; gap: 10px; }
.fr-mock .fr-mock-stats .fm-stat { background: #fff; border: 1px solid var(--gray-200); border-radius: 8px; padding: 9px 12px; }
.fr-mock .fr-mock-stats .fm-bar { display: block; height: 8px; border-radius: 999px; background: var(--accent-gradient); }
.fr-mock .fr-mock-rows { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.fr-mock .fr-mock-rows span { height: 30px; border-radius: 6px; background: #e6ebf3; }

/* 套餐方案（定价卡片） */
.billing-toggle { display: flex; justify-content: center; gap: 6px; margin: -18px auto 42px; width: max-content; max-width: 100%; background: #fff; border: 1px solid var(--gray-200); border-radius: 999px; padding: 6px; box-shadow: var(--shadow); }
.billing-toggle button { border: 0; background: transparent; cursor: pointer; font-size: 14px; font-weight: 700; color: var(--text-light); padding: 9px 22px; border-radius: 999px; transition: var(--transition); }
.billing-toggle button.active { background: var(--accent-gradient); color: #fff; box-shadow: 0 6px 16px rgba(49,130,206,.35); }
.price-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; align-items: stretch; }
.price-card { position: relative; background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-lg); padding: 30px 24px; box-shadow: var(--shadow); display: flex; flex-direction: column; transition: var(--transition); }
.price-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.price-card.is-recommended { border-color: var(--accent); box-shadow: 0 24px 60px rgba(49,130,206,.22); transform: translateY(-8px); }
.price-card.is-recommended:hover { transform: translateY(-12px); }
.price-badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--accent-gradient); color: #fff; font-size: 12px; font-weight: 700; padding: 5px 16px; border-radius: 999px; box-shadow: 0 8px 20px rgba(49,130,206,.4); white-space: nowrap; }
.price-name { font-size: 20px; font-weight: 800; color: var(--primary); }
.price-limit { font-size: 13px; color: var(--text-light); margin-top: 4px; }
.price-amount { margin: 18px 0 20px; display: flex; align-items: baseline; gap: 2px; color: var(--dark); }
.price-amount .cur { font-size: 20px; font-weight: 700; }
.price-amount .num { font-size: 38px; font-weight: 900; letter-spacing: -.5px; line-height: 1; transition: opacity .25s ease; }
.price-amount .per { font-size: 15px; color: var(--text-light); margin-left: 2px; }
.price-card .btn-block { width: 100%; justify-content: center; }
.price-feat-title { font-size: 13px; font-weight: 700; color: var(--primary); margin: 22px 0 12px; padding-top: 18px; border-top: 1px dashed var(--gray-200); }
.price-feats { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; flex: 1; }
.price-feats li { position: relative; padding-left: 26px; font-size: 14px; color: var(--text-light); line-height: 1.5; }
.price-feats li::before { content: "✓"; position: absolute; left: 0; top: 1px; width: 18px; height: 18px; border-radius: 50%; background: rgba(49,130,206,.1); color: var(--accent); font-size: 11px; font-weight: 700; display: flex; align-items: center; justify-content: center; }

/* =====================================================
   信任条（参考模板 logo-strip）
   ===================================================== */
.logo-strip { padding: 34px 0; border-top: 1px solid var(--gray-200); background: #fff; }
.logo-strip .ls-tx { text-align: center; color: var(--text-light); font-size: 14px; margin-bottom: 18px; letter-spacing: .5px; }
.logo-strip .ls-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.logo-chip { background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: 10px; padding: 12px 22px; font-weight: 700; color: var(--primary); font-size: 15px; transition: var(--transition); }
.logo-chip:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* =====================================================
   页脚（深色渐变 + 玻璃质感 + 微交互）
   ===================================================== */
.site-ft {
  position: relative;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(49, 130, 206, .22) 0%, transparent 50%),
    radial-gradient(ellipse at 100% 100%, rgba(26, 54, 93, .35) 0%, transparent 45%),
    linear-gradient(180deg, #0f172a 0%, #0b1221 100%);
  color: rgba(255,255,255,.62);
  padding: 0 0 28px;
  margin-top: 60px;
  border-top: 1px solid rgba(255,255,255,.06);
}
.site-ft-topbar {
  height: 4px;
  background: linear-gradient(90deg, var(--accent) 0%, #63b3ed 35%, #805ad5 70%, var(--accent) 100%);
  background-size: 200% 100%;
  animation: ftTopbarMove 4s linear infinite;
  opacity: .85;
}
@keyframes ftTopbarMove { 0% { background-position: 0% 50%; } 100% { background-position: 200% 50%; } }

.site-ft-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 56px;
  padding: 72px 0 54px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

/* 品牌区 */
.site-ft .brand { color: #fff; margin-bottom: 20px; }
.site-ft .brand .brand-mk {
  background: linear-gradient(135deg, var(--accent) 0%, #63b3ed 100%);
  box-shadow: 0 8px 24px rgba(49,130,206,.45);
}
.site-ft .brand .brand-tx b { color: #fff; font-size: 18px; }
.site-ft .brand .brand-tx i { color: rgba(255,255,255,.45); }
.ft-slogan {
  color: rgba(255,255,255,.55);
  font-size: 14px;
  line-height: 1.85;
  max-width: 300px;
  margin-bottom: 22px;
}
.ft-contact { margin-bottom: 22px; }
.ft-line {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  margin: 8px 0;
  color: rgba(255,255,255,.6);
  transition: var(--transition);
}
.ft-line:hover { color: rgba(255,255,255,.9); }
.ft-ic {
  width: 28px; height: 28px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 8px;
  font-size: 13px;
  flex-shrink: 0;
  transition: var(--transition);
}
.ft-line:hover .ft-ic {
  background: rgba(49,130,206,.18);
  border-color: rgba(49,130,206,.35);
  transform: translateY(-1px);
}

/* 社交图标 */
.ft-social { display: flex; gap: 10px; }
.ft-social-link {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 10px;
  font-size: 15px;
  color: rgba(255,255,255,.7);
  transition: var(--transition);
}
.ft-social-link:hover {
  background: linear-gradient(135deg, rgba(49,130,206,.9) 0%, rgba(99,179,237,.9) 100%);
  border-color: transparent;
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(49,130,206,.35);
}

/* 链接列 */
.ft-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 22px;
  letter-spacing: .5px;
  position: relative;
  display: inline-block;
}
.ft-col h4::after {
  content: "";
  position: absolute; bottom: -8px; left: 0;
  width: 24px; height: 3px;
  background: var(--accent);
  border-radius: 2px;
}
.ft-col ul { list-style: none; }
.ft-col ul li { margin-bottom: 13px; }
.ft-col ul li a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,.52);
  transition: var(--transition);
}
.ft-col ul li a:hover {
  color: #fff;
  transform: translateX(5px);
}
.ft-arrow {
  color: var(--accent-light);
  font-size: 16px;
  opacity: 0;
  transform: translateX(-6px);
  transition: var(--transition);
}
.ft-col ul li a:hover .ft-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* 底部 */
.site-ft-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 26px;
  font-size: 13px;
  color: rgba(255,255,255,.4);
}
.ft-legal { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.ft-dot { color: rgba(255,255,255,.2); }
.ft-backtop {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 999px;
  padding: 8px 18px;
  color: rgba(255,255,255,.55);
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition);
}
.ft-backtop:hover {
  background: rgba(49,130,206,.2);
  border-color: rgba(49,130,206,.4);
  color: #fff;
  transform: translateY(-2px);
}
.ft-backtop svg { transition: transform .3s ease; }
.ft-backtop:hover svg { transform: translateY(-2px); }

/* =====================================================
   滚动揭示 / 动画
   ===================================================== */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
.fade-in-up { opacity: 0; transform: translateY(30px); transition: opacity .6s ease, transform .6s ease; }
.fade-in-up.visible, .fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in { opacity: 0; transition: opacity .6s ease; }

/* =====================================================
   会员认证（注册 / 登录）
   ===================================================== */
.auth-section {
  min-height: calc(100vh - var(--header-height) - 60px);
  display: flex; align-items: center; justify-content: center;
  padding: 48px 24px;
  background: linear-gradient(135deg, #f0f4f8 0%, #e6f0fa 50%, #f0f4f8 100%);
  position: relative; overflow: hidden;
}
.auth-section::before {
  content: ""; position: absolute; top: -180px; right: -120px;
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(49,130,206,.14) 0%, transparent 70%);
  border-radius: 50%;
}
.auth-section::after {
  content: ""; position: absolute; bottom: -160px; left: -100px;
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(99,179,237,.12) 0%, transparent 70%);
  border-radius: 50%;
}
.auth-card {
  position: relative; z-index: 2;
  width: 100%; max-width: 980px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: grid; grid-template-columns: 1fr 1.1fr;
  overflow: hidden;
  border: 1px solid var(--gray-200);
  animation: authFadeIn .6s ease;
}
@keyframes authFadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.auth-visual {
  background: var(--accent-gradient);
  color: #fff;
  padding: 48px 40px;
  display: flex; flex-direction: column; justify-content: space-between;
  position: relative; overflow: hidden;
}
.auth-visual::before {
  content: ""; position: absolute; top: -80px; right: -80px;
  width: 260px; height: 260px;
  background: radial-gradient(circle, rgba(255,255,255,.18) 0%, transparent 70%);
  border-radius: 50%;
}
.auth-visual .brand { position: relative; z-index: 1; }
.auth-visual .brand-mk {
  background: rgba(255,255,255,.2);
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
}
.auth-visual .brand-tx b, .auth-visual .brand-tx i { color: #fff; }
.auth-visual h3 {
  font-size: 28px; font-weight: 800; line-height: 1.35;
  margin: 34px 0 14px;
  position: relative; z-index: 1;
}
.auth-visual p {
  font-size: 15px; line-height: 1.8;
  color: rgba(255,255,255,.85);
  position: relative; z-index: 1;
}
.auth-features {
  margin-top: 28px; display: grid; gap: 14px;
  position: relative; z-index: 1;
}
.auth-features li {
  display: flex; align-items: center; gap: 12px;
  font-size: 14.5px; color: rgba(255,255,255,.92);
}
.auth-features .check {
  width: 24px; height: 24px; border-radius: 50%;
  background: rgba(255,255,255,.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; flex-shrink: 0;
}
.auth-visual-footer {
  margin-top: auto; padding-top: 34px;
  font-size: 13px; color: rgba(255,255,255,.65);
  position: relative; z-index: 1;
}
.auth-form {
  padding: 44px 48px;
  display: flex; flex-direction: column; justify-content: center;
}
.auth-form h2 {
  font-size: 26px; color: var(--primary);
  margin-bottom: 8px; font-weight: 800;
}
.auth-form .sub {
  color: var(--text-light); font-size: 14.5px;
  margin-bottom: 28px; line-height: 1.6;
}
.auth-field { margin-bottom: 18px; }
.auth-field label {
  display: block; font-size: 13.5px; font-weight: 600;
  color: var(--gray-800); margin-bottom: 7px;
}
.auth-input-wrap { position: relative; }
.auth-input-wrap svg {
  position: absolute; left: 14px; top: 50%;
  transform: translateY(-50%);
  width: 18px; height: 18px;
  color: var(--gray-400); pointer-events: none;
  transition: var(--transition);
}
.auth-input-wrap input {
  width: 100%; padding: 13px 14px 13px 44px;
  border: 1px solid var(--gray-300); border-radius: var(--radius);
  font-size: 15px; color: var(--text); background: var(--gray-50);
  transition: var(--transition); font-family: inherit;
}
.auth-input-wrap input::placeholder { color: var(--gray-400); }
.auth-input-wrap input:focus {
  outline: none; border-color: var(--accent); background: #fff;
  box-shadow: 0 0 0 4px rgba(49,130,206,.1);
}
.auth-input-wrap input:focus + svg { color: var(--accent); }
.auth-submit {
  width: 100%; margin-top: 6px; padding: 14px 24px;
  font-size: 16px; font-weight: 700; border: none;
  border-radius: var(--radius);
  background: var(--accent-gradient); color: #fff;
  cursor: pointer;
  box-shadow: 0 8px 22px rgba(49,130,206,.35);
  transition: var(--transition);
}
.auth-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(49,130,206,.45);
}
.auth-submit:active { transform: translateY(0); }
.auth-alt {
  margin-top: 22px; text-align: center;
  font-size: 14px; color: var(--text-light);
}
.auth-alt a {
  color: var(--accent); font-weight: 700; margin-left: 4px;
}
.auth-alt a:hover { color: var(--primary-light); }
.auth-back {
  display: inline-flex; align-items: center; gap: 6px;
  margin-bottom: 18px;
  color: var(--text-light); font-size: 14px; font-weight: 500;
}
.auth-back:hover { color: var(--accent); }

/* =====================================================
   响应式
   ===================================================== */
@media (max-width: 1024px) {
  .grid-4, .tour-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .price-grid { grid-template-columns: repeat(2, 1fr); }
  .price-card.is-recommended { transform: none; }
  .price-card.is-recommended:hover { transform: translateY(-6px); }
  .hero .container { grid-template-columns: 1fr; gap: 20px; }
  .hero-visual { order: -1; max-width: 520px; margin: 0 auto; }
  .hero-stats { gap: 28px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .site-ft-grid { grid-template-columns: 1fr 1fr; }
  .site-ft .ft-brand { grid-column: 1 / -1; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-layout { grid-template-columns: 1fr; }
  .feat-row { grid-template-columns: 1fr; gap: 28px; }
  .news-feature { grid-template-columns: 1fr; }
  .stat-band { grid-template-columns: repeat(2, 1fr); }
  .showcase { grid-template-columns: 1fr; gap: 28px; }
  .showcase.reverse .sc-media { order: 0; }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .pw-side { display: none; }
  .pw-body { grid-template-columns: 1fr; }
  .auth-card { grid-template-columns: 1fr; max-width: 520px; }
  .auth-visual { display: none; }
}
@media (max-width: 760px) {
  .site-nav, .site-hd-cta { display: none; }
  .site-menu-btn { display: block; }
  .section { padding: 60px 0; }
  .sec-head h2 { font-size: 27px; }
  .hero { padding: 40px 0 60px; }
  .hero h1 { font-size: 2.2rem; }
  .hero p.lead { font-size: 16px; }
  .hero-stats { flex-wrap: wrap; gap: 22px; }
  .hero-stat .num { font-size: 1.8rem; }
  .grid-3, .grid-4, .grid-2, .news-grid, .case-grid, .showcase, .price-grid { grid-template-columns: 1fr; }
  .price-card.is-recommended { transform: none; }
  .price-card.is-recommended:hover { transform: translateY(-6px); }
  .billing-toggle { width: 100%; }
  .billing-toggle button { flex: 1; padding: 9px 10px; }
  .band { flex-direction: column; align-items: center; padding: 40px 24px; }
  .band h3 { font-size: 1.5rem; }
  .article { padding: 30px 22px; }
  .feat-row { gap: 24px; }
  .feat-row.reverse .fr-media { order: 0; }
  .news-feature .nf-cover { height: 200px; }
  .stat-band .s-num { font-size: 30px; }
  .site-ft-grid { grid-template-columns: 1fr; gap: 32px; padding: 48px 0 40px; }
  .site-ft .ft-brand { grid-column: auto; }
  .ft-slogan { max-width: 100%; }
  .ft-social { justify-content: center; }
  .site-ft-bottom { flex-direction: column; gap: 14px; text-align: center; }
  .ft-legal { justify-content: center; }
  .ft-backtop { width: 100%; justify-content: center; }
  .page-hero { padding: 74px 0 54px; }
  .page-hero h2 { font-size: 27px; }
  .page-hero-sm { padding: 52px 0 42px; }
  .page-hero-sm h2 { font-size: 23px; }
  .float-card-1 { left: -10px; }
  .float-card-2 { right: -6px; }
  .auth-section { padding: 32px 20px; }
  .auth-form { padding: 32px 26px; }
  .auth-form h2 { font-size: 23px; }
  .auth-submit { padding: 13px 20px; font-size: 15px; }
}