/* ============ 云企建站系统 · 前台样式 ============ */
:root{
  --brand:#2f6bff; --brand2:#2f6bff;
  --brand-deep:#1e4fd6;
  --ink:#1c2333; --muted:#6b7280; --line:#e5e7eb;
  --bg:#fff; --bg-gray:#f5f7fb;
  --radius:12px; --radius-lg:18px;
  --shadow:0 6px 24px rgba(20,40,90,.08);
  --shadow-lg:0 16px 44px rgba(20,40,90,.14);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.site{min-height:100vh;display:flex;flex-direction:column}
.site-main{flex:1}

/* ---------- 顶栏 ---------- */
.topbar{background:linear-gradient(90deg,var(--brand),var(--brand-deep));color:#fff;font-size:13px}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;height:36px}
.topbar-link{color:#fff;opacity:.9;transition:.2s}
.topbar-link:hover{opacity:1;text-decoration:underline}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);box-shadow:0 1px 0 rgba(20,40,90,.06);backdrop-filter:blur(8px)}
.site-header.scrolled{box-shadow:0 6px 24px rgba(20,40,90,.10)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:var(--ink);letter-spacing:.5px}
.logo img{height:44px;width:auto}
.logo-text{background:linear-gradient(120deg,var(--brand),var(--brand-deep));-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-wrap{display:flex;align-items:center;gap:8px}
.nav{display:flex;align-items:center;gap:4px}
.nav a{display:block;padding:10px 16px;border-radius:8px;color:var(--ink);font-size:15px;font-weight:500;transition:.2s}
.nav a:hover{color:var(--brand);background:var(--bg-gray)}
.nav a.active{color:var(--brand);background:var(--brand-light, rgba(47,107,255,.08));font-weight:600}
.nav-search-li a{padding:10px 12px}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 公告 ---------- */
.announce{background:linear-gradient(90deg,#fff7e8,#fff);border-bottom:1px solid #ffe9c2;color:#8a5a00;font-size:14px;text-align:center;padding:8px 20px}
.announce span{margin-right:6px}

/* ---------- 首页 Hero ---------- */
.hero{position:relative;background:linear-gradient(135deg,var(--brand) 0%,#4a7dff 45%,var(--brand-deep) 100%);color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 85% 20%,rgba(255,255,255,.18),transparent 40%),radial-gradient(circle at 10% 90%,rgba(255,255,255,.10),transparent 40%)}
.hero-inner{position:relative;padding:96px 20px 110px;max-width:900px;text-align:center}
.hero-badge{display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:6px 18px;font-size:13px;letter-spacing:1px;margin-bottom:22px}
.hero-title{font-size:48px;font-weight:800;line-height:1.25;letter-spacing:2px;margin-bottom:18px;text-shadow:0 4px 24px rgba(0,20,80,.25)}
.hero-sub{font-size:18px;opacity:.92;max-width:640px;margin:0 auto 34px}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-scroll{margin-top:56px;font-size:13px;opacity:.75;letter-spacing:2px;animation:bob 2s infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(8px)}}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 28px;font-size:15px;font-weight:600;border:0;cursor:pointer;transition:.22s}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(47,107,255,.28)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 12px 26px rgba(47,107,255,.36)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.24)}
.btn-light{background:#fff;color:var(--brand);box-shadow:0 8px 20px rgba(0,20,80,.18)}
.btn-light:hover{transform:translateY(-2px)}

/* ---------- 区块 ---------- */
.section{padding:72px 0}
.section-gray{background:var(--bg-gray)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:34px;gap:16px}
.sec-title{font-size:30px;font-weight:800;position:relative;padding-left:16px;letter-spacing:1px}
.sec-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;border-radius:4px;background:linear-gradient(180deg,var(--brand),var(--brand-deep))}
.sec-sub{color:var(--muted);font-size:14px;margin-top:8px;padding-left:16px}
.sec-more{font-size:14px;color:var(--brand);white-space:nowrap}
.sec-more:hover{text-decoration:underline}
.about-text{color:#3a4256;font-size:16px;text-align:center;max-width:880px;margin:0 auto 44px}

/* ---------- 统计 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{background:linear-gradient(160deg,#fff,var(--bg-gray));border:1px solid var(--line);border-radius:var(--radius);padding:28px 16px;text-align:center;transition:.25s}
.stat:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand)}
.stat-num{font-size:38px;font-weight:800;color:var(--brand);line-height:1.2}
.stat-label{color:var(--muted);font-size:14px;margin-top:8px}

/* ---------- 网格与卡片 ---------- */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:.25s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(47,107,255,.4)}
.list-card{display:flex;flex-direction:column}
.lc-img{aspect-ratio:16/9;background:linear-gradient(135deg,var(--brand-light,rgba(47,107,255,.10)),var(--bg-gray));display:flex;align-items:center;justify-content:center;font-size:52px}
.lc-img img{width:100%;height:100%;object-fit:cover}
.lc-ico{font-size:52px;line-height:1}
.lc-body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1}
.lc-top{display:flex;justify-content:space-between;align-items:center;gap:8px}
.lc-tag{font-size:12px;color:var(--brand);background:var(--brand-light,rgba(47,107,255,.10));border-radius:999px;padding:3px 12px}
.lc-date{font-size:12px;color:var(--muted)}
.lc-body h3{font-size:17px;font-weight:700;line-height:1.45}
.lc-body h3 a{color:var(--ink)}
.lc-body h3 a:hover{color:var(--brand)}
.lc-body p{font-size:14px;color:var(--muted);flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.lc-meta{display:flex;gap:12px;align-items:center;font-size:13px;color:var(--muted);flex-wrap:wrap}
.lc-more{margin-left:auto;color:var(--brand);font-weight:600;white-space:nowrap}
.empty{color:var(--muted);text-align:center;padding:48px 0;font-size:15px}

/* ---------- 内页 Hero ---------- */
.page-hero{background:linear-gradient(120deg,var(--brand),var(--brand-deep));color:#fff;padding:52px 0 46px;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.10)}
.page-title{font-size:32px;font-weight:800;letter-spacing:1px}
.page-subtitle{opacity:.9;font-size:15px;margin-top:10px}
.page-main{padding:34px 0 70px}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:26px;padding-bottom:14px;border-bottom:1px dashed var(--line)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{margin:0 8px;color:#c3c9d4}

/* ---------- 详情 ---------- */
.detail-meta{opacity:.9;font-size:14px;margin-top:12px}
.detail-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:40px 44px;box-shadow:var(--shadow)}
.detail-body{font-size:16px;color:#2a3040}
.detail-body h3{font-size:20px;margin:26px 0 12px;padding-left:12px;border-left:4px solid var(--brand)}
.detail-body p{margin:12px 0}
.detail-body ul,.detail-body ol{margin:12px 0;padding-left:24px}
.detail-body li{margin:6px 0}
.detail-body table.params{width:100%;border-collapse:collapse;margin:18px 0 26px;border-radius:10px;overflow:hidden}
.detail-body table.params td{border:1px solid var(--line);padding:12px 16px;font-size:14px}
.detail-body table.params td:first-child{background:var(--bg-gray);font-weight:600;color:var(--ink);width:180px}
.detail-back{margin-top:34px;padding-top:22px;border-top:1px dashed var(--line)}
.detail-back .back{color:var(--brand);font-size:14px}
.detail-back .back:hover{text-decoration:underline}

/* ---------- 搜索 ---------- */
.search-form{display:flex;gap:12px;max-width:640px;margin:0 auto 26px}
.search-input{flex:1;height:50px;border:1px solid var(--line);border-radius:10px;padding:0 18px;font-size:15px;outline:none;transition:.2s}
.search-input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,107,255,.12)}
.search-count{text-align:center;color:var(--muted);font-size:14px;margin-bottom:26px}
.search-results .sec-title{font-size:20px;margin:30px 0 16px}

/* ---------- 留言 ---------- */
.message-wrap{display:grid;grid-template-columns:1.15fr 1fr;gap:34px;align-items:start}
.msg-form,.msg-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow)}
.msg-form h3,.msg-list h3{font-size:19px;font-weight:700;margin-bottom:18px}
.form-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.msg-form label{display:flex;flex-direction:column;gap:7px;font-size:14px;font-weight:600;color:#3a4256;margin-bottom:14px}
.msg-form label span{color:#e5484d}
.msg-form input,.msg-form textarea{border:1px solid var(--line);border-radius:9px;padding:11px 14px;font-size:14px;font-family:inherit;outline:none;transition:.2s;font-weight:400}
.msg-form input:focus,.msg-form textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,107,255,.12)}
.msg-form label.full{grid-column:1/-1}
.msg-form .hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.form-tip{margin-top:12px;font-size:14px;min-height:20px}
.form-tip.ok{color:#0e9f6e}
.form-tip.err{color:#e5484d}
.msg-item{border-bottom:1px dashed var(--line);padding:14px 0}
.msg-item:last-child{border-bottom:0}
.msg-head{display:flex;justify-content:space-between;font-size:13px;margin-bottom:6px}
.msg-head strong{color:var(--ink)}
.msg-head span{color:var(--muted)}
.msg-item p{font-size:14px;color:#3a4256}

/* ---------- CTA ---------- */
.cta{background:linear-gradient(120deg,var(--brand),var(--brand-deep));color:#fff;padding:56px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-text h2{font-size:26px;font-weight:800;letter-spacing:1px}
.cta-text p{opacity:.9;margin-top:8px;font-size:15px}

/* ---------- 页脚 ---------- */
.site-footer{background:#131a2b;color:#aab3c8}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:36px;padding:54px 20px 40px}
.footer-col h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:18px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--brand);border-radius:2px}
.footer-intro p{font-size:14px;line-height:1.9;margin-bottom:14px}
.footer-list li{margin-bottom:10px;font-size:14px}
.footer-list a{color:#aab3c8;transition:.2s}
.footer-list a:hover{color:#fff;padding-left:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;text-align:center;font-size:13px;color:#7c869c}
.footer-bottom a{color:#aab3c8}
.footer-bottom a:hover{color:#fff}

/* ---------- 回到顶部 ---------- */
.backtop{position:fixed;right:26px;bottom:34px;width:46px;height:46px;border-radius:12px;border:0;background:var(--brand);color:#fff;font-size:20px;cursor:pointer;box-shadow:0 10px 24px rgba(47,107,255,.4);opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s;z-index:90}
.backtop.show{opacity:1;visibility:visible;transform:translateY(0)}
.backtop:hover{background:var(--brand-deep)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:820px){
  .nav-toggle{display:flex}
  .nav{position:fixed;top:0;right:-280px;width:260px;height:100vh;background:#fff;flex-direction:column;align-items:stretch;padding:80px 20px 20px;box-shadow:-12px 0 40px rgba(20,40,90,.18);transition:right .3s;z-index:99}
  body.nav-open .nav{right:0}
  body.nav-open::after{content:"";position:fixed;inset:0;background:rgba(10,20,40,.45);z-index:98}
  .nav a{padding:14px 16px;font-size:16px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .message-wrap{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .hero-title{font-size:36px}
  .section{padding:54px 0}
}
@media (max-width:560px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .hero-inner{padding:64px 20px 80px}
  .hero-title{font-size:30px}
  .detail-card{padding:24px 20px}
  .topbar-text{display:none}
  .topbar-inner{justify-content:flex-end}
}
/* ---------- 站点切换条 ---------- */
.site-switch{display:flex;gap:4px;margin:0 auto}
.site-switch a{color:#fff;opacity:.85;padding:2px 10px;border-radius:999px;font-size:12px;border:1px solid transparent}
.site-switch a:hover{opacity:1}
.site-switch a.active{background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.4);opacity:1}

/* ---------- 分页 ---------- */
.pager{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:40px;flex-wrap:wrap}
.page{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:38px;padding:0 12px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink);font-size:14px;transition:.18s}
.page:hover{border-color:var(--brand);color:var(--brand)}
.page.current{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}

/* ---------- 标签云 ---------- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:14px;padding:10px 0}
.tag-chip{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 18px;font-size:15px;color:var(--ink);transition:.2s}
.tag-chip span{font-size:12px;background:var(--brand-light,rgba(47,107,255,.10));color:var(--brand);border-radius:999px;padding:1px 9px}
.tag-chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow)}

/* ---------- 评论区 ---------- */
.comment-section{margin-top:30px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow)}
.comment-section h3{font-size:19px;font-weight:700;margin-bottom:16px}
.comment-item{border-bottom:1px dashed var(--line);padding:16px 0}
.comment-item:last-of-type{border-bottom:0}
.comment-head{display:flex;justify-content:space-between;font-size:13px;margin-bottom:6px}
.comment-head strong{color:var(--ink)}
.comment-head span{color:var(--muted)}
.comment-item p{font-size:14px;color:#3a4256}
.comment-reply{margin-top:8px;background:var(--bg);border-left:3px solid var(--brand);border-radius:8px;padding:8px 12px;font-size:13px;color:#3a4256}
.comment-form{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
.comment-form h3{font-size:17px;margin-bottom:14px}
.comment-form .form-row{grid-template-columns:repeat(3,1fr)}
.captcha-row input{margin-top:6px}
/* ---------- 详情页标签 ---------- */
.detail-tags{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:26px}
.detail-tags .dt-label{color:var(--muted);font-size:14px}
.detail-tags .tag-chip{padding:5px 14px;font-size:13px}
.detail-related{margin-top:26px}

/* ---------- 标题逐字动画（参考 g1geo 效果） ---------- */
.split-char{display:inline-block;will-change:transform,filter,opacity;opacity:0;animation:charReveal .55s cubic-bezier(.2,.7,.3,1) both paused;animation-delay:var(--d,0ms)}
.play .split-char{animation-play-state:running}
@keyframes charReveal{from{filter:blur(6px);opacity:0;transform:translateY(.6em)}to{filter:blur(0);opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.split-char{animation:none!important;opacity:1!important}}

/* ---------- home marketing modules ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.adv-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 22px;box-shadow:var(--shadow);transition:.22s}
.adv-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:0 12px 28px rgba(47,107,255,.12)}
.adv-ico{width:52px;height:52px;border-radius:14px;background:var(--brand-light,rgba(47,107,255,.10));display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:14px}
.adv-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.adv-card p{font-size:14px;color:#3a4256;line-height:1.7}
.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px 16px;text-align:center;box-shadow:var(--shadow);transition:.2s}
.step:hover{transform:translateY(-4px);border-color:var(--brand)}
.step-num{width:40px;height:40px;margin:0 auto 12px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;font-weight:800;font-size:15px;display:flex;align-items:center;justify-content:center}
.step h3{font-size:15px;font-weight:700;margin-bottom:6px}
.step p{font-size:12.5px;color:var(--muted);line-height:1.6}
.trust-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.trust-stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px 16px;text-align:center;box-shadow:var(--shadow)}
.trust-num{font-size:30px;font-weight:800;color:var(--brand);line-height:1.2}
.trust-label{font-size:13px;color:var(--muted);margin-top:8px}
/* ---------- category tabs ---------- */
.cat-tabs{display:flex;flex-wrap:wrap;gap:10px;margin:6px 0 26px}
.cat-tab{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 20px;font-size:14px;color:var(--ink);cursor:pointer;transition:.18s}
.cat-tab:hover{border-color:var(--brand);color:var(--brand)}
.cat-tab.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
/* ---------- faq ---------- */
.faq-group{margin-bottom:26px}
.faq-group-title{font-size:18px;font-weight:700;margin-bottom:14px;padding-left:12px;border-left:4px solid var(--brand)}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;overflow:hidden;box-shadow:var(--shadow)}
.faq-item summary{cursor:pointer;padding:16px 20px;font-size:15px;font-weight:600;list-style:none;position:relative;padding-right:40px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"＋";position:absolute;right:18px;top:50%;transform:translateY(-50%);color:var(--brand);font-weight:700;font-size:16px}
.faq-item[open] summary::after{content:"－"}
.faq-answer{padding:4px 20px 18px;font-size:14px;color:#3a4256;line-height:1.8;border-top:1px dashed var(--line);margin:0 0 0;padding-top:14px}
.faq-answer p{margin-bottom:8px}
/* ---------- float cta ---------- */
.float-cta{position:fixed;right:18px;bottom:120px;z-index:999;display:flex;flex-direction:column;gap:10px}
.float-cta-btn{position:relative;width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;box-shadow:0 8px 20px rgba(47,107,255,.35);transition:.2s;cursor:pointer}
.float-cta-btn:hover{transform:translateY(-3px) scale(1.04)}
.float-cta-btn em{position:absolute;right:60px;top:50%;transform:translateY(-50%);background:#fff;border:1px solid var(--line);border-radius:8px;color:var(--ink);font-size:12.5px;font-style:normal;padding:6px 12px;white-space:nowrap;opacity:0;pointer-events:none;transition:.2s;box-shadow:var(--shadow)}
.float-cta-btn:hover em{opacity:1}
.float-cta-box{position:absolute;right:64px;bottom:0;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;width:170px;text-align:center;box-shadow:0 12px 32px rgba(0,0,0,.14);display:none}
.float-cta-box.show{display:block}
.float-cta-box img{width:140px;height:140px;border-radius:8px;display:block;margin:0 auto 8px}
.float-cta-box .wx-id{font-weight:700;color:var(--brand);font-size:15px;display:block;padding:8px 0}
.float-cta-box p{font-size:12px;color:var(--muted);margin:0}
@media (max-width:900px){.adv-grid{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(3,1fr)}.trust-stats{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.adv-grid{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr)}.trust-stats{grid-template-columns:1fr}.float-cta{right:12px;bottom:100px}}

/* ---------- 产品详情：新式布局（参考新版产品页） ---------- */
.product-layout{display:flex;gap:32px;align-items:flex-start}
.anchor-nav{position:sticky;top:96px;flex:0 0 210px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:18px 14px;box-shadow:var(--shadow)}
.anchor-title{font-size:13px;color:var(--muted);font-weight:700;margin-bottom:10px;padding-left:4px}
.anchor-nav ul{list-style:none;margin:0;padding:0}
.anchor-nav li a{display:block;padding:9px 12px;border-radius:8px;font-size:14px;color:var(--ink);transition:.18s}
.anchor-nav li a:hover{background:var(--brand-light,rgba(47,107,255,.10));color:var(--brand)}
.product-main{flex:1;min-width:0}
.prod-head{display:flex;gap:24px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow)}
.ph-img{flex:0 0 150px;width:150px;height:150px;border-radius:16px;background:linear-gradient(135deg,#f8f9fc,#eef1f8);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.ph-img img{width:100%;height:100%;object-fit:cover}
.ph-emoji{font-size:64px;line-height:1}
.ph-watermark{position:absolute;left:10px;bottom:10px;width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.92);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;box-shadow:0 2px 10px rgba(20,40,90,.15);z-index:2}
.ph-watermark::before{content:"SD";font-size:11px;font-weight:800;color:#e53e3e;letter-spacing:.5px}
.ph-title{font-size:26px;font-weight:800;color:var(--ink);margin:0 0 10px}
.ph-summary{font-size:15px;color:#3a4256;line-height:1.75;margin:0 0 18px}
.ph-meta{margin:0 0 18px;display:flex;flex-direction:column;gap:10px}
.ph-tag{display:inline-block;background:var(--brand-light,rgba(47,107,255,.08));color:var(--brand);padding:4px 14px;border-radius:999px;font-size:13px}
.ph-keywords{font-size:14px;color:#3a4256;display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.kw-chip{display:inline-block;background:#fff;border:1px solid var(--line);color:#3a4256;padding:3px 10px;border-radius:6px;font-size:12.5px}
.ph-actions{display:flex;gap:12px;flex-wrap:wrap}
.prod-section{margin-top:36px}
.block-title{font-size:21px;font-weight:800;color:var(--ink);margin:0 0 18px;padding-left:12px;border-left:4px solid var(--brand)}
.problem-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow)}
.pb-row{display:flex;gap:14px;align-items:flex-start}
.pb-label{flex:0 0 130px;background:var(--bg-gray,#f4f6fb);color:var(--ink);font-weight:700;font-size:13.5px;border-radius:999px;padding:6px 0;text-align:center;margin-top:2px}
.pb-label-green{background:rgba(23,179,116,.12);color:#17b374}
.pb-row p{margin:0;font-size:15px;color:#3a4256;line-height:1.8;flex:1}
.pb-arrow{margin:14px 0 14px 60px;font-size:13px;color:var(--brand);font-weight:700}
.pb-sol{background:rgba(23,179,116,.06);border-radius:12px;padding:14px 16px}
.pb-note{margin:16px 0 0;font-size:13.5px;color:var(--muted);background:var(--brand-light,rgba(47,107,255,.08));border-radius:10px;padding:12px 16px;line-height:1.7}
.product-main .content{font-size:15px;color:#3a4256;line-height:1.9}
.product-main .content p{margin:0 0 12px}

.product-main .content{font-size:15px;color:#3a4256;line-height:1.9}
.product-main .content p{margin:0 0 12px}
.product-main .content h2,.product-main .content h3{font-size:17px;font-weight:700;color:var(--ink);margin:24px 0 12px}
.product-main .content h2{font-size:19px}
.product-main .content ul,.product-main .content ol{padding-left:22px;margin:0 0 14px}
.product-main .content li{margin:0 0 6px;font-size:14.5px;line-height:1.8}
/* 相关文档 */
.doc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.doc-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:16px;box-shadow:var(--shadow);transition:.2s;display:flex;flex-direction:column}
.doc-card:hover{transform:translateY(-3px);border-color:var(--brand)}
.doc-img{background:var(--bg-gray,#f4f6fb);border-radius:10px;overflow:hidden;aspect-ratio:4/3;margin-bottom:12px;line-height:0}
.doc-img img{width:100%;height:100%;object-fit:cover}
.doc-card h4{font-size:15px;color:var(--ink);font-weight:700;margin:0 0 6px}
.doc-card p{font-size:13px;color:var(--muted);margin:0 0 12px;flex:1}
.doc-btn{display:inline-block;background:var(--brand-light,rgba(47,107,255,.08));color:var(--brand);padding:8px 14px;border-radius:8px;font-size:13.5px;font-weight:600;text-decoration:none;text-align:center}
.doc-btn:hover{background:var(--brand);color:#fff}
/* FAQ */
.faq-block{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.faq-block .faq-item{border-bottom:1px solid var(--line)}
.faq-block .faq-item:last-child{border-bottom:0}
.faq-block summary{padding:14px 18px;cursor:pointer;font-size:14.5px;font-weight:600;color:var(--ink);list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq-block summary::after{content:"+";color:var(--brand);font-size:20px;font-weight:700;transition:.2s}
.faq-block .faq-item[open] summary::after{content:"-"}
.faq-block .faq-answer{padding:0 18px 16px;font-size:14px;color:#3a4256;line-height:1.8}
.faq-block .faq-answer p{margin:0 0 8px}
.feature-list{list-style:none;margin:16px 0 0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.feature-list li{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:14px;color:#3a4256;display:flex;gap:8px;align-items:flex-start}
.feature-list li::before{content:"✔";color:var(--brand);font-weight:700}
.app-list{list-style:none;margin:16px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.app-list li{background:var(--brand-light,rgba(47,107,255,.08));border:1px solid rgba(47,107,255,.25);color:var(--brand);border-radius:999px;padding:8px 16px;font-size:14px}
.param-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.param-table th{width:220px;background:var(--bg-gray,#f4f6fb);font-weight:600;color:var(--ink);text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);font-size:14px}
.param-table td{padding:12px 16px;border-bottom:1px solid var(--line);font-size:14px;color:#3a4256}
.param-table tr:last-child th,.param-table tr:last-child td{border-bottom:0}
.contact-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px;text-align:center;box-shadow:var(--shadow);transition:.2s}
.contact-card:hover{transform:translateY(-3px);border-color:var(--brand)}
.c-ico{font-size:26px;margin-bottom:8px}
.contact-card h4{font-size:14px;color:var(--muted);font-weight:600;margin:0 0 6px}
.contact-card .c-val{font-size:15px;font-weight:700;color:var(--ink)}
.contact-card .c-val a{color:var(--brand);text-decoration:none}
.contact-card .c-val a:hover{text-decoration:underline}
.wx-qr{width:110px;height:110px;border-radius:8px;object-fit:cover;margin-top:6px}
.product-main .btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.product-main .btn-ghost:hover{background:var(--brand);color:#fff}
/* ---------- CTA 横幅 ---------- */
.cta-band{margin-top:56px;background:linear-gradient(135deg,var(--brand),#1e4fd6);padding:52px 0;text-align:center}
.cta-band h2{color:#fff;font-size:26px;font-weight:800;margin:0 0 10px}
.cta-band p{color:rgba(255,255,255,.85);font-size:15px;margin:0 0 22px}
.cta-band-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}
.cta-band .btn-primary{background:#fff;color:var(--brand);box-shadow:0 8px 20px rgba(0,20,80,.25)}
.cta-band .btn-primary:hover{background:#eef2ff;color:var(--brand);transform:translateY(-2px)}
.cta-band-tel{display:inline-flex;align-items:center;justify-content:center;border-radius:10px;padding:12px 28px;font-size:15px;font-weight:600;color:#fff;border:1px solid rgba(255,255,255,.7);transition:.2s;text-decoration:none}
.cta-band-tel:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
/* ---------- 响应式：产品详情 ---------- */
@media (max-width:900px){
  .product-layout{flex-direction:column}
  .anchor-nav{position:static;flex:none;width:100%}
  .anchor-nav ul{display:flex;flex-wrap:wrap;gap:4px}
  .prod-head{flex-direction:column}
  .ph-img{flex:none;width:100%;height:auto;aspect-ratio:4/3}
  .feature-list{grid-template-columns:1fr}
  .doc-grid{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
  .contact-cards{grid-template-columns:1fr}
  .pb-row{flex-direction:column;gap:8px}
  .pb-label{align-self:flex-start}
  .pb-arrow{margin-left:0}
}
@media (max-width:560px){
  .cta-band{padding:38px 0}
  .cta-band h2{font-size:21px}
  .prod-head{padding:20px}
}