/* ==========================================================================
   大雄建站 · 整站公用样式 v2
   方向：打破"等距小卡片"僵硬感 —— 开放排版、更大字号层级、留白呼吸、
        区块背景交替、分层阴影、无大面积渐变、无毛玻璃、无 emoji
   ========================================================================== */
:root{
  --blue:#1B6DF3;
  --blue-deep:#0B4FD8;
  --blue-ink:#0B3B8C;
  --blue-tint:#F2F7FF;
  --blue-tint-2:#E4EFFF;
  --bg:#FFFFFF;
  --bg-soft:#F6F9FE;
  --bg-soft-2:#EDF4FF;
  --ink:#16203A;
  --ink-2:#4A5A76;
  --ink-3:#8793A8;
  --line:#E6ECF6;
  --line-2:#D5E0F2;
  --white:#fff;
  --ok:#16A34A;
  --radius:16px;
  --radius-sm:9px;
  --shadow-1:0 1px 2px rgba(20,40,90,.04);
  --shadow-2:0 6px 20px -8px rgba(20,45,95,.10);
  --shadow-3:0 24px 60px -24px rgba(20,45,95,.22);
  --w:1200px;
  --nav-h:70px;
  --font:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.7;font-size:15px;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:inherit}
.container{max-width:var(--w);margin:0 auto;padding:0 28px}
::selection{background:var(--blue-tint-2)}

/* ============ 排版 ============ */
h1,h2,h3,h4{line-height:1.25;letter-spacing:.2px}
.lead{font-size:17px;color:var(--ink-2);line-height:1.85}
.muted{color:var(--ink-3)}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 28px;border-radius:12px;font-size:15px;font-weight:600;line-height:1;transition:background .18s,box-shadow .18s,transform .12s,border-color .18s,color .18s;white-space:nowrap}
.btn svg{width:17px;height:17px;flex:none}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px -8px rgba(27,109,243,.5)}
.btn-primary:hover{background:var(--blue-deep);transform:translateY(-1px);box-shadow:0 12px 26px -8px rgba(27,109,243,.55)}
.btn-ghost{background:var(--white);color:var(--blue);border:1px solid var(--line-2);box-shadow:var(--shadow-1)}
.btn-ghost:hover{border-color:var(--blue);background:var(--blue-tint)}
.btn-dark{background:var(--blue-ink);color:#fff}
.btn-dark:hover{background:#0a2f6e}
.btn-lg{height:54px;padding:0 34px;font-size:16px;border-radius:14px}
.btn-sm{height:34px;padding:0 16px;font-size:13.5px;border-radius:9px}
.btn-block{width:100%}

/* ============ 顶部导航 ============ */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:var(--w);margin:0 auto;height:var(--nav-h);padding:0 28px;display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,var(--blue),var(--blue-ink));display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 6px 14px -6px rgba(27,109,243,.55)}
.brand-mark svg{width:21px;height:21px}
.brand-name{font-size:20px;font-weight:800;line-height:1.1}
.brand-name em{font-style:normal;color:var(--blue)}
.brand-sub{font-size:11px;color:var(--ink-3);display:block;margin-top:2px}
.nav-menu{display:flex;align-items:center;gap:4px;flex:1}
.nav-link{position:relative;padding:11px 16px;font-size:15px;color:var(--ink-2);border-radius:10px;transition:.18s}
.nav-link:hover{color:var(--blue);background:var(--blue-tint)}
.nav-link.active{color:var(--blue);font-weight:700}
.nav-link.active::after{content:'';position:absolute;left:16px;right:16px;bottom:2px;height:2.5px;background:var(--blue);border-radius:2px}
.nav-right{display:flex;align-items:center;gap:14px;flex:none}
.nav-login{color:var(--ink);font-size:15px;padding:8px 6px}
.nav-login:hover{color:var(--blue)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;align-items:center;justify-content:center;color:var(--ink);border:1px solid var(--line)}
.nav-toggle svg{width:22px;height:22px}
.nav-mobile{display:none;position:fixed;top:var(--nav-h);left:0;right:0;background:#fff;border-bottom:1px solid var(--line);z-index:99;box-shadow:var(--shadow-2);padding:10px 18px 18px}
.nav-mobile.open{display:block}
.nav-mobile .nav-link{display:block;padding:14px 14px;border-bottom:1px solid var(--line)}
.nav-mobile .nav-link:last-of-type{border-bottom:none}

/* ============ 区块 ============ */
.section{padding:96px 0}
.section-tight{padding:56px 0}
.section-soft{background:var(--bg-soft)}
.section-soft-2{background:var(--bg-soft-2)}
.section-line{border-top:1px solid var(--line)}
.sec-head{max-width:820px;margin:0 auto 56px;text-align:center}
.sec-head.left{margin:0 0 46px;text-align:left}
.sec-kicker{display:inline-flex;align-items:center;gap:10px;font-size:13.5px;font-weight:700;color:var(--blue);margin-bottom:16px;letter-spacing:1px}
.sec-kicker::before{content:'';width:22px;height:2px;background:var(--blue);border-radius:2px}
.sec-title{font-size:36px;font-weight:800;letter-spacing:.3px;line-height:1.25}
.sec-title .hl{color:var(--blue)}
.sec-sub{color:var(--ink-2);font-size:16px;margin-top:14px;line-height:1.8}

/* ============ Hero ============ */
.hero{position:relative;background:var(--blue-tint);border-bottom:1px solid var(--line);overflow:hidden}
.hero::before{content:'';position:absolute;inset:auto -180px -260px auto;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle,rgba(27,109,243,.12),transparent 68%);pointer-events:none}
.hero::after{content:'';position:absolute;inset:-120px auto auto -160px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(27,109,243,.08),transparent 66%);pointer-events:none}
.hero-inner{max-width:var(--w);margin:0 auto;padding:84px 28px 96px;display:grid;grid-template-columns:1.08fr .92fr;gap:64px;align-items:center;position:relative;z-index:1}
.hero-kicker{display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line-2);padding:8px 16px;border-radius:999px;font-size:13px;color:var(--blue-ink);font-weight:600;box-shadow:var(--shadow-1)}
.hero-kicker .dot{width:7px;height:7px;border-radius:50%;background:var(--blue)}
.hero h1{font-size:52px;font-weight:800;line-height:1.16;margin:26px 0 20px;letter-spacing:.4px}
.hero h1 .hl{color:var(--blue)}
.hero-lead{color:var(--ink-2);font-size:17.5px;max-width:560px;line-height:1.85}
.hero-points{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 34px}
.hero-point{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 18px;font-size:14px;color:var(--ink);box-shadow:var(--shadow-1)}
.hero-point svg{width:16px;height:16px;color:var(--blue)}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap}
.hero-visual{position:relative}
.hero-visual .frame{border-radius:20px;overflow:hidden;box-shadow:var(--shadow-3);background:#fff;border:1px solid var(--line-2);transform:rotate(1.2deg)}
.hero-visual img{width:100%;height:auto}
.hero-caption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:16px;letter-spacing:.3px}

/* ============ 统计条 ============ */
.stats{display:grid;grid-template-columns:repeat(6,1fr);background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow-2)}
.stat{padding:32px 18px;text-align:center;border-right:1px solid var(--line);position:relative}
.stat:last-child{border-right:none}
.stat b{display:block;font-size:40px;font-weight:800;color:var(--blue-ink);line-height:1.1;letter-spacing:.5px}
.stat b i{font-style:normal;color:var(--blue)}
.stat span{font-size:13px;color:var(--ink-2);margin-top:8px;display:block}

/* ============ 特性（开放排版，去卡片化） ============ */
.feat{display:flex;flex-direction:column;gap:16px}
.feat .ico{width:50px;height:50px;flex:none;display:flex;align-items:center;justify-content:center;color:var(--blue);border:1px solid var(--line-2);border-radius:14px;background:#fff;box-shadow:var(--shadow-1)}
.feat .ico svg{width:24px;height:24px}
.feat b{font-size:18px;font-weight:700;display:block;margin-bottom:6px}
.feat p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.feat-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 56px}
.feat-card{padding:32px 8px;border-bottom:1px solid var(--line);display:grid;grid-template-columns:auto 1fr;column-gap:22px;row-gap:7px;align-items:start}
.feat-card:nth-last-child(-n+2){border-bottom:none}
.feat-card .ico{grid-row:1/3;align-self:center;width:54px;height:54px;display:flex;align-items:center;justify-content:center;color:var(--blue);border:1px solid var(--line-2);border-radius:15px;background:#fff;box-shadow:var(--shadow-1)}
.feat-card .ico svg{width:26px;height:26px}
.feat-card b{font-size:18px;font-weight:700;grid-column:2;grid-row:1}
.feat-card p{font-size:14.5px;color:var(--ink-2);line-height:1.75;grid-column:2;grid-row:2}

/* ============ 卡片网格（产品载体，保留卡片但更精致） ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.card{background:#fff;border-radius:18px;overflow:hidden;transition:transform .22s,box-shadow .22s;display:flex;flex-direction:column;box-shadow:var(--shadow-1)}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-3)}
.card-media{position:relative;overflow:hidden;background:var(--bg-soft)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.card:hover .card-media img{transform:scale(1.05)}
.card-media .ratio-3-2{aspect-ratio:3/2}
.card-media .ratio-16-9{aspect-ratio:16/9}
.card-badge{position:absolute;left:14px;top:14px;z-index:2;background:var(--blue-ink);color:#fff;font-size:12px;font-weight:600;padding:5px 14px;border-radius:999px}
.card-badge.free{background:#0E9F6E}
.card-body{padding:20px 22px 22px}
.card-body h3{font-size:17.5px;font-weight:700;margin-bottom:7px}
.card-body p{font-size:13.5px;color:var(--ink-2);line-height:1.7}
.card-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--ink-3);margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.card-meta svg{width:15px;height:15px;color:var(--blue)}

/* ============ 分块双栏 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split-8{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center}
.list-check{display:flex;flex-direction:column;gap:18px;margin:24px 0 30px}
.list-check li{display:flex;gap:14px;align-items:flex-start}
.list-check li svg{width:21px;height:21px;color:var(--ok);flex:none;margin-top:3px}
.list-check b{font-size:16px;display:block}
.list-check span{font-size:14px;color:var(--ink-2)}
.img-frame{border-radius:20px;overflow:hidden;box-shadow:var(--shadow-3);border:1px solid var(--line)}
.img-frame img{width:100%;height:auto}

/* ============ 步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:step}
.step{position:relative;padding:0 28px;text-align:center}
.step:not(:last-child)::after{content:'';position:absolute;top:30px;left:62%;right:-26px;height:1px;background:var(--line-2)}
.step .num{width:60px;height:60px;margin:0 auto 18px;border-radius:18px;background:linear-gradient(135deg,var(--blue),var(--blue-ink));color:#fff;display:flex;align-items:center;justify-content:center;font-size:21px;font-weight:700;box-shadow:0 12px 24px -12px rgba(27,109,243,.55)}
.step b{font-size:17px;font-weight:700;display:block;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--ink-2);line-height:1.75}

/* ============ 标签筛选 ============ */
.tabs{display:inline-flex;background:#fff;border:1px solid var(--line-2);border-radius:12px;padding:5px;gap:3px;box-shadow:var(--shadow-1)}
.tab{height:40px;padding:0 24px;border-radius:9px;font-size:14.5px;color:var(--ink-2);transition:.15s}
.tab.active{background:var(--blue);color:#fff;font-weight:600;box-shadow:0 6px 14px -6px rgba(27,109,243,.5)}
.tab:hover:not(.active){color:var(--blue);background:var(--blue-tint)}
.chips{display:flex;flex-wrap:wrap;gap:12px}
.chip{padding:9px 20px;border-radius:999px;background:#fff;border:1px solid var(--line-2);font-size:13.5px;color:var(--ink-2);transition:.15s}
.chip:hover{border-color:var(--blue);color:var(--blue)}
.chip.active{background:var(--blue-ink);border-color:var(--blue-ink);color:#fff;font-weight:600}

/* ============ 价格 ============ */
.price-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;align-items:stretch}
.price-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px 28px;position:relative;display:flex;flex-direction:column;transition:.22s;box-shadow:var(--shadow-1)}
.price-card:hover{border-color:#C7DBFF;box-shadow:var(--shadow-3);transform:translateY(-5px)}
.price-card.hot{border:2px solid var(--blue);box-shadow:var(--shadow-3)}
.price-card .flag{position:absolute;top:-15px;left:50%;transform:translateX(-50%);background:var(--blue);color:#fff;font-size:12px;font-weight:600;padding:6px 18px;border-radius:999px;white-space:nowrap;box-shadow:0 8px 16px -8px rgba(27,109,243,.6)}
.price-card h4{font-size:19px;font-weight:700;margin-bottom:8px}
.price-card .desc{font-size:13.5px;color:var(--ink-2);min-height:44px;line-height:1.6}
.price-card .price{font-size:42px;font-weight:800;color:var(--blue-ink);margin:18px 0 4px;letter-spacing:.5px}
.price-card .price small{font-size:14px;color:var(--ink-3);font-weight:500}
.price-card .unit{font-size:13px;color:var(--ink-3);margin-bottom:18px}
.price-card ul{flex:1;display:flex;flex-direction:column;gap:13px;margin-bottom:26px}
.price-card li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-2)}
.price-card li svg{width:18px;height:18px;color:var(--ok);flex:none;margin-top:2px}
.price-card li.off{color:var(--ink-3)}
.price-card li.off svg{color:var(--line-2)}
.price-card .btn{width:100%}
.price-note{text-align:center;color:var(--ink-3);font-size:13px;margin-top:28px}

/* ============ 新闻 / 文章列表 ============ */
.news-list{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff;box-shadow:var(--shadow-1)}
.news-item{display:flex;gap:24px;padding:24px 28px;border-bottom:1px solid var(--line);transition:.18s;align-items:flex-start}
.news-item:last-child{border-bottom:none}
.news-item:hover{background:var(--bg-soft)}
.news-item .thumb{width:230px;flex:none;border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.news-item .thumb img{width:100%;aspect-ratio:3/2;object-fit:cover}
.news-item .body{flex:1}
.news-item h3{font-size:17.5px;font-weight:700;margin-bottom:9px;transition:.15s}
.news-item:hover h3{color:var(--blue)}
.news-item p{font-size:14px;color:var(--ink-2);line-height:1.75}
.news-meta{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--ink-3);margin-bottom:11px}
.news-meta svg{width:14px;height:14px}

/* ============ 标签云 ============ */
.cloud{display:flex;flex-wrap:wrap;gap:12px}
.cloud a{padding:9px 20px;border:1px solid var(--line-2);border-radius:999px;font-size:13.5px;color:var(--ink-2);transition:.15s}
.cloud a:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-tint)}
.cloud a .n{color:var(--ink-3);font-size:12px;margin-left:4px}

/* ============ 详情页正文 ============ */
.article{max-width:780px;margin:0 auto}
.article-head{margin-bottom:40px;padding-bottom:30px;border-bottom:1px solid var(--line)}
.article-head .tags{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:20px}
.article-head .tags a{font-size:12.5px;color:var(--blue);background:var(--blue-tint);border:1px solid var(--blue-tint-2);padding:5px 13px;border-radius:999px}
.article-head .tags a:hover{background:var(--blue);color:#fff}
.article-head h1{font-size:34px;font-weight:800;line-height:1.3;margin-bottom:18px}
.article-head .meta{display:flex;align-items:center;gap:18px;font-size:13.5px;color:var(--ink-3)}
.article-head .meta svg{width:15px;height:15px}
.article-cover{border-radius:18px;overflow:hidden;border:1px solid var(--line);margin-bottom:36px;box-shadow:var(--shadow-2)}
.article-cover img{width:100%}
.article-body{font-size:16px;line-height:2;color:var(--ink)}
.article-body h2{font-size:24px;font-weight:700;margin:40px 0 16px}
.article-body h3{font-size:19px;font-weight:700;margin:30px 0 12px}
.article-body p{margin-bottom:18px}
.article-body ul,.article-body ol{margin:0 0 20px 22px}
.article-body li{margin-bottom:10px;position:relative}
.article-body ul li::before{content:'';position:absolute;left:-18px;top:12px;width:6px;height:6px;border-radius:50%;background:var(--blue)}
.article-body blockquote{border-left:3px solid var(--blue);background:var(--blue-tint);padding:18px 22px;margin:0 0 20px;color:var(--ink-2);border-radius:0 12px 12px 0}
.article-body .note{background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:18px 22px;font-size:14px;color:var(--ink-2);margin:0 0 20px}
.article-cta{background:var(--blue-ink);background-image:radial-gradient(circle at 15% 120%,rgba(27,109,243,.35),transparent 55%);border-radius:20px;padding:40px;text-align:center;margin-top:44px;color:#fff;position:relative;overflow:hidden}
.article-cta h3{font-size:23px;margin-bottom:10px}
.article-cta p{color:#B9C6E2;font-size:14.5px;margin-bottom:22px}
.article-cta .btn-primary{background:#fff;color:var(--blue-ink);box-shadow:0 10px 24px -10px rgba(0,0,0,.35)}
.article-cta .btn-primary:hover{background:var(--blue-tint)}
.prev-next{display:flex;justify-content:space-between;gap:20px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.prev-next a{flex:1;display:flex;flex-direction:column;padding:18px 20px;border:1px solid var(--line);border-radius:14px;transition:.18s;font-size:13px;color:var(--ink-3)}
.prev-next a:hover{border-color:var(--blue);color:var(--blue);box-shadow:var(--shadow-2)}
.prev-next a b{font-size:15px;color:var(--ink);margin-top:6px}

/* ============ 表单 ============ */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:9px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--ink)}
.field input,.field textarea,.field select{height:48px;border:1px solid var(--line-2);border-radius:12px;padding:0 15px;color:var(--ink);background:#fff;transition:.15s;width:100%}
.field textarea{height:auto;min-height:150px;padding:13px 15px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(27,109,243,.12)}
.field .hint{font-size:12.5px;color:var(--ink-3)}

/* ============ 页脚 ============ */
.footer{background:#0B1322;color:#9AA6BD;padding:64px 0 0}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;padding-bottom:48px}
.footer-brand b{font-size:21px;color:#fff;font-weight:800}
.footer-brand b em{font-style:normal;color:#7FB0FF}
.footer-brand p{font-size:13px;margin:15px 0 22px;line-height:1.9;color:#7E8BA3}
.footer-col h5{color:#fff;font-size:15px;font-weight:600;margin-bottom:20px}
.footer-col li{margin-bottom:12px}
.footer-col a{font-size:13.5px;color:#8794AB;transition:.15s}
.footer-col a:hover{color:#fff}
.footer-partner{border-top:1px solid rgba(255,255,255,.08);padding:26px 0;display:flex;flex-wrap:wrap;gap:20px;align-items:center}
.footer-partner span{font-size:13px;color:#6E7A91}
.footer-partner .lp{font-size:14px;font-weight:600;color:#9AA6BD}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:22px 0 28px;font-size:12.5px;color:#5E6A80;display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between}
.footer-bottom a{color:#5E6A80}
.footer-bottom a:hover{color:#fff}

/* ============ 工具条 / Toast / 回顶 ============ */
.float-bar{position:fixed;right:22px;bottom:112px;z-index:90;display:flex;flex-direction:column;gap:12px}
.float-item{width:46px;height:46px;border-radius:14px;background:#fff;border:1px solid var(--line-2);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--blue);box-shadow:var(--shadow-2);transition:.18s}
.float-item:hover{background:var(--blue);color:#fff}
.float-item svg{width:19px;height:19px}
.float-item span{font-size:10px;line-height:1}
.float-top{position:fixed;right:22px;bottom:58px;z-index:90;width:46px;height:46px;border-radius:14px;background:var(--blue-ink);color:#fff;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:.25s;box-shadow:var(--shadow-2)}
.float-top.show{opacity:1;pointer-events:auto}
.float-top svg{width:20px;height:20px}
.float-top:hover{background:var(--blue)}
#toast{position:fixed;left:50%;bottom:44px;transform:translateX(-50%) translateY(16px);background:var(--ink);color:#fff;padding:12px 24px;border-radius:12px;font-size:14px;z-index:999;opacity:0;pointer-events:none;transition:.28s;box-shadow:var(--shadow-3);max-width:86vw}

/* ============ 分页 ============ */
.pager{display:flex;align-items:center;justify-content:center;gap:9px;margin-top:48px}
.pager a,.pager span{min-width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:10px;font-size:14px;color:var(--ink-2);transition:.15s}
.pager a:hover{border-color:var(--blue);color:var(--blue)}
.pager .cur{background:var(--blue);color:#fff;border-color:var(--blue);font-weight:600}

/* ============ 通用工具 ============ */
.hidden{display:none!important}

/* ============ 动画 ============ */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:44px;padding:60px 28px 68px}
  .hero h1{font-size:40px}
  .feat-grid{grid-template-columns:1fr}
  .feat-card{border-bottom:1px solid var(--line)}
  .feat-card:nth-last-child(-n+2){border-bottom:1px solid var(--line)}
  .feat-card:last-child{border-bottom:none}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);gap:26px 0}
  .step::after{display:none}
  .split,.split-8{grid-template-columns:1fr;gap:44px}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .sec-title{font-size:28px}
  .hero h1{font-size:33px}
  .nav-menu{display:none}
  .nav-right .nav-login{display:none}
  .nav-toggle{display:inline-flex}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat{border-bottom:1px solid var(--line)}
  .stat:nth-child(5),.stat:nth-child(6){border-bottom:none}
  .stat:nth-child(even){border-right:none}
  .grid-3,.grid-4,.feat-grid,.price-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .news-item{flex-direction:column}
  .news-item .thumb{width:100%}
  .form-grid{grid-template-columns:1fr}
  .article-head h1{font-size:27px}
  .footer-top{grid-template-columns:1fr}
  .footer-partner{flex-direction:column;align-items:flex-start;gap:12px}
}

/* ==========================================================================
   首页独立版式 v3（仅首页使用）
   ========================================================================== */
.hero-center{text-align:center}
.hero-c{max-width:840px;padding:76px 28px 0}
.hero-c h1{font-size:56px}
.hero-big-img{margin-top:56px;padding-bottom:72px}
.hero-big-img .wrap{max-width:var(--w);margin:0 auto;padding:0 28px}
.hero-big-img .frame{border-radius:24px;overflow:hidden;box-shadow:var(--shadow-3);border:1px solid var(--line-2)}
.hero-big-img img{width:100%}
.stats-float{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin:44px auto 0;max-width:880px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-3);overflow:hidden}
.sf-item{padding:26px 12px;text-align:center;border-right:1px solid var(--line)}
.sf-item:last-child{border-right:none}
.sf-item b{display:block;font-size:34px;font-weight:800;color:var(--blue-ink);line-height:1.1}
.sf-item b i{font-style:normal;color:var(--blue)}
.sf-item span{font-size:13px;color:var(--ink-2);margin-top:6px;display:block}

/* 编号三步价值 */
.num-feature{display:grid;gap:20px}
.num-feature .nf{display:flex;gap:22px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 28px;box-shadow:var(--shadow-1)}
.num-feature .nf .no{font-size:36px;font-weight:800;color:var(--blue);line-height:1;flex:none;width:56px}
.num-feature .nf h3{font-size:18px;margin-bottom:8px}
.num-feature .nf p{color:var(--ink-2);font-size:14.5px;line-height:1.8}

/* 深蓝 AI 能力区 */
.ai-block{background:var(--blue-ink);background-image:radial-gradient(circle at 10% 120%,rgba(27,109,243,.42),transparent 55%);color:#fff;padding:100px 0}
.ai-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.ai-title h2{font-size:34px;margin:16px 0 16px;line-height:1.3}
.ai-title p{color:#B9C6E2;line-height:1.8;margin-bottom:24px}
.ai-grid .btn{background:#fff;color:var(--blue-ink)}
.ai-grid .btn:hover{background:var(--blue-tint)}
.ai-list{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.ai-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:22px}
.ai-item .ico{width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.14);display:flex;align-items:center;justify-content:center;margin-bottom:14px;color:#fff}
.ai-item b{font-size:16px;display:block;margin-bottom:6px}
.ai-item p{font-size:13px;color:#AEBAD6;line-height:1.7}
.ai-block .steps{grid-template-columns:1fr 1fr}
.ai-block .step .num{background:linear-gradient(135deg,#FFFFFF,#DCE8FF);color:var(--blue);box-shadow:0 14px 26px -12px rgba(6,32,120,.65);border:1px solid rgba(255,255,255,.4)}
.ai-block .step:not(:last-child)::after{background:rgba(255,255,255,.2)}

/* zigzag 功能（奇偶交错） */
.zigzag{display:grid;grid-template-columns:1fr 1fr;gap:14px 70px}
.zz{display:flex;gap:20px;align-items:flex-start;padding:24px 6px;border-bottom:1px solid var(--line)}
.zz:nth-child(odd){border-right:1px solid var(--line);padding-right:34px}
.zz .ico{width:50px;height:50px;flex:none;border-radius:15px;border:1px solid var(--line-2);display:flex;align-items:center;justify-content:center;color:var(--blue);background:#fff;box-shadow:var(--shadow-1)}
.zz .ico svg{width:24px;height:24px}
.zz b{font-size:17px;display:block;margin-bottom:6px}
.zz p{font-size:14px;color:var(--ink-2);line-height:1.75}

/* AI 搜索收录 / AI 推荐区块 */
.geo-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:38px}
.geo-card{background:linear-gradient(160deg,#EDF4FF 0%,#FFFFFF 70%);border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:var(--shadow-1)}
.geo-head{display:flex;gap:16px;align-items:flex-start;margin-bottom:20px}
.geo-head .ico{width:46px;height:46px;flex:none;border-radius:13px;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 20px -8px rgba(27,109,243,.55)}
.geo-head .ico svg{width:23px;height:23px}
.geo-head b{font-size:18px;display:block;margin-bottom:5px}
.geo-head span{font-size:13.5px;color:var(--ink-2);line-height:1.7}
.geo-shot{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.geo-search{display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--line);padding:12px 14px}
.geo-search .g-logo{font-weight:800;color:var(--blue);font-size:15px;white-space:nowrap}
.geo-search .g-bar{flex:1;border:1px solid var(--line-2);border-radius:8px;padding:6px 12px;font-size:13px;color:var(--ink)}
.geo-search .g-btn{background:var(--blue);color:#fff;border:none;border-radius:8px;padding:6px 16px;font-size:12.5px;white-space:nowrap}
.geo-results{padding:12px 16px}
.geo-r{border-bottom:1px solid var(--line);padding:10px 0}
.geo-r:last-child{border-bottom:none}
.geo-r .t{font-size:14px;font-weight:600;color:var(--blue-ink);margin-bottom:3px}
.geo-r .u{font-size:11px;color:var(--ink-3);margin-bottom:3px}
.geo-r .s{font-size:12.5px;color:var(--ink-2);line-height:1.6}
.ai-chat{display:flex;flex-direction:column;gap:12px;padding:16px}
.chat-q{background:#EAF2FF;border-radius:14px 14px 2px 14px;padding:12px 14px;font-size:13px;color:var(--blue-ink);align-self:flex-end;max-width:78%;line-height:1.6}
.chat-a{background:#F8FAFF;border:1px solid var(--line);border-radius:14px 14px 14px 2px;padding:12px 14px;font-size:13px;color:var(--ink);line-height:1.7;max-width:88%}
.chat-a b{color:var(--blue)}
.chat-a .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.chat-a .tags span{font-size:11px;color:var(--blue);background:var(--blue-tint);padding:3px 9px;border-radius:99px}
.geo-cta{text-align:center;margin-top:34px}
.geo-cta .btn{background:#F5B70A;color:#3A2A00;font-weight:700;box-shadow:0 12px 24px -10px rgba(245,183,10,.6)}
.geo-cta .btn:hover{background:#F0A500;color:#3A2A00}
@media (max-width:640px){.geo-grid{grid-template-columns:1fr}}

/* AI赋能三步：三列并排卡片（图标+编号） */
.ai-feat3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.aif{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:var(--shadow-1);position:relative;transition:.25s;overflow:hidden}
.aif:hover{box-shadow:var(--shadow-3);transform:translateY(-4px);border-color:var(--line-2)}
.aif .no{font-size:52px;font-weight:800;color:var(--blue-tint);line-height:1;position:absolute;top:22px;right:26px}
.aif .ico{width:52px;height:52px;border-radius:15px;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;margin-bottom:18px;box-shadow:0 12px 24px -10px rgba(27,109,243,.55)}
.aif .ico svg{width:25px;height:25px}
.aif h3{font-size:18px;margin-bottom:8px}
.aif p{font-size:13.5px;color:var(--ink-2);line-height:1.8}
.aif .lnk{display:inline-flex;align-items:center;gap:5px;font-size:13px;font-weight:600;color:var(--blue);margin-top:14px;transition:.2s}
.aif .lnk svg{width:14px;height:14px}
.aif:hover .lnk{color:var(--blue-ink)}
@media (max-width:768px){.ai-feat3{grid-template-columns:1fr}}

/* 首页资讯：帮助中心 + 新闻资讯（各10条）+ 实力保障 */
.doc-news2{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.dn-col{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow-1)}
.dn-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:8px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.dn-head b{font-size:22px;display:flex;align-items:center;gap:10px}
.dn-head b::before{content:'';width:5px;height:20px;border-radius:3px;background:linear-gradient(180deg,var(--blue),var(--blue-ink))}
.dn-head span{font-size:13px;color:var(--ink-3);margin-top:8px;display:block;padding-left:15px}
.dn-head a{font-size:13px;font-weight:600;color:var(--blue);background:var(--blue-tint);padding:7px 15px;border-radius:99px;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;transition:.2s;margin-top:2px}
.dn-head a:hover{background:var(--blue);color:#fff}
.dn-head a svg{width:15px;height:15px;transition:.2s}
.dn-head a:hover svg{transform:translateX(2px)}
.dn-list{display:grid;grid-template-columns:1fr;gap:0;margin:0}
.dn-list li{list-style:none;border-bottom:1px dashed var(--line-2);padding:13px 0;transition:.2s}
.dn-list li:last-child{border-bottom:none}
.dn-list li:hover{padding-left:6px}
.dn-list a{display:flex;align-items:center;gap:12px;font-size:14px;width:100%}
.dn-list .d{flex:none;font-size:11px;font-weight:600;color:var(--blue);background:var(--blue-tint);padding:4px 9px;border-radius:6px;white-space:nowrap}
.dn-list b{font-weight:500;color:var(--ink);transition:.15s;line-height:1.6;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.dn-list a:hover b{color:var(--blue);font-weight:600}
.guarantee{display:flex;align-items:center;gap:30px;background:var(--blue-ink);background-image:radial-gradient(circle at 8% 120%,rgba(27,109,243,.4),transparent 55%);border-radius:22px;padding:30px 34px;margin-top:26px;color:#fff}
.guarantee .g-left{display:flex;gap:16px;align-items:center;flex:none}
.guarantee .ico{width:52px;height:52px;border-radius:15px;background:rgba(255,255,255,.14);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 12px 24px -10px rgba(6,32,120,.6)}
.guarantee .ico svg{width:26px;height:26px}
.guarantee b{font-size:21px;display:block;margin-bottom:4px}
.guarantee .g-left span{font-size:13px;color:#AEBAD6}
.guarantee p{flex:1;color:#C9D4EC;font-size:14px;line-height:1.8;margin:0}
.guarantee .btn{flex:none}
@media (max-width:768px){.doc-news2{grid-template-columns:1fr}.guarantee{flex-direction:column;text-align:center}.guarantee .g-left{flex-direction:column}.guarantee p{margin:6px 0}}
@media (max-width:640px){.dn-list{grid-template-columns:1fr}}

/* news.html 新框架：顶部推荐banner + 左主右栏 + 底部教程/动态 */
.nbanner{display:grid;grid-template-columns:1.55fr 1fr;gap:22px}
.nb-feature{position:relative;border-radius:20px;overflow:hidden;min-height:330px;display:flex;align-items:flex-end}
.nb-feature>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.nb-feature .ov{position:relative;z-index:1;padding:28px;background:linear-gradient(180deg,transparent 20%,rgba(6,20,70,.88) 100%);width:100%;color:#fff}
.nb-feature .tag{display:inline-block;background:#F5B70A;color:#3A2A00;font-size:12px;font-weight:700;padding:3px 10px;border-radius:99px;margin-bottom:10px}
.nb-feature h2,.nb-feature h1{font-size:23px;line-height:1.35;margin-bottom:8px}
.nb-feature p{font-size:13.5px;color:rgba(255,255,255,.88);margin-bottom:14px}
.nb-feature .meta{font-size:12px;color:rgba(255,255,255,.72)}
.nb-list{display:flex;flex-direction:column;gap:12px}
.nb-list a{display:flex;gap:14px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;box-shadow:var(--shadow-1);transition:.2s;flex:1}
.nb-list a:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.nb-list a .th{width:98px;flex:none;border-radius:10px;overflow:hidden;aspect-ratio:16/11}
.nb-list a .th img{width:100%;height:100%;object-fit:cover}
.nb-list a b{font-size:14px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--ink)}
.nb-list a:hover b{color:var(--blue)}
.nb-list a .d{font-size:11.5px;color:var(--ink-3);margin-top:6px}
.news-layout{display:grid;grid-template-columns:1fr 340px;gap:30px;align-items:start}
.art-featured{display:grid;grid-template-columns:1.05fr 1fr;background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow-1);margin-bottom:22px}
.art-featured .af-img{min-height:250px}
.art-featured .af-img img{width:100%;height:100%;object-fit:cover}
.art-featured .af-body{padding:26px 28px}
.art-featured .af-tags{display:flex;gap:8px;margin-bottom:12px}
.art-featured .af-tags span{font-size:11px;font-weight:700;padding:3px 9px;border-radius:99px}
.af-tags .hot{background:#FFF1E5;color:#E07B1F}
.af-tags .new{background:#E7F0FF;color:var(--blue)}
.af-tags .org{background:#F0F6EC;color:#4E8A2E}
.art-featured h2{font-size:21px;line-height:1.4;margin-bottom:10px}
.art-featured p{font-size:13.5px;color:var(--ink-2);line-height:1.8;margin-bottom:16px}
.art-featured .am{display:flex;gap:16px;font-size:12px;color:var(--ink-3);flex-wrap:wrap}
.art-featured .am b{color:var(--blue)}
.art-list{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-1);overflow:hidden}
.art-row{display:grid;grid-template-columns:1fr 230px;gap:20px;padding:20px 26px;border-bottom:1px solid var(--line);transition:.15s}
.art-row:last-child{border-bottom:none}
.art-row:hover{background:#F8FBFF}
.art-row .t{display:flex;gap:8px;align-items:center;margin-bottom:7px}
.art-row .t span{font-size:11px;font-weight:700;padding:2px 8px;border-radius:99px;flex:none}
.art-row b{font-size:16.5px;line-height:1.5;display:block;margin-bottom:7px}
.art-row p{font-size:13px;color:var(--ink-2);line-height:1.75;margin-bottom:10px}
.art-row .am{display:flex;gap:16px;font-size:12px;color:var(--ink-3);flex-wrap:wrap}
.art-row .side{display:flex;gap:12px;align-items:center}
.art-row .side img{width:110px;height:66px;object-fit:cover;border-radius:10px;flex:none}
.art-row .side .views{font-size:12px;color:var(--ink-3)}
.art-cats{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin:26px 0 22px}
.news-side{position:sticky;top:86px;display:flex;flex-direction:column;gap:20px}
.side-box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:var(--shadow-1)}
.side-box h3{font-size:16px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px}
.side-box h3::before{content:'';width:4px;height:16px;border-radius:2px;background:var(--blue)}
.side-tags{display:flex;flex-wrap:wrap;gap:8px}
.side-tags a{font-size:12.5px;color:var(--blue-ink);background:var(--blue-tint);padding:6px 12px;border-radius:99px;transition:.15s}
.side-tags a:hover{background:var(--blue);color:#fff}
.side-links{display:flex;flex-direction:column}
.side-links a{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid var(--line);font-size:13.5px;color:var(--ink);transition:.15s}
.side-links a:last-child{border-bottom:none}
.side-links a:hover{color:var(--blue)}
.side-links a i{color:var(--ink-3);width:13px;height:13px}
.side-links a:hover i{color:var(--blue)}
.side-news{list-style:none;margin:0}
.side-news li{border-bottom:1px solid var(--line);padding:10px 0}
.side-news li:last-child{border-bottom:none}
.side-news a{font-size:13.5px;color:var(--ink);line-height:1.55;display:block;transition:.15s}
.side-news a:hover{color:var(--blue)}
.side-card{background:var(--blue-ink);border:none;color:#fff;background-image:radial-gradient(circle at 10% 120%,rgba(27,109,243,.4),transparent 55%)}
.side-card .ico{width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.14);display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.side-card .ico svg{width:22px;height:22px}
.side-card b{font-size:17px;display:block;margin-bottom:6px}
.side-card p{font-size:13px;color:#AEBAD6;line-height:1.7;margin-bottom:14px}
.art-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pub-zone{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.pub-box{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:var(--shadow-1)}
@media (max-width:1024px){.nbanner{grid-template-columns:1fr}.news-layout{grid-template-columns:1fr}.news-side{position:static}}
@media (max-width:768px){.art-featured{grid-template-columns:1fr}.art-row{grid-template-columns:1fr}.art-row .side{display:none}.art-grid{grid-template-columns:1fr 1fr}.pub-zone{grid-template-columns:1fr}}
@media (max-width:640px){.art-grid{grid-template-columns:1fr}}

/* 文章详情新UI：顶部hero + 全宽居中阅读 */
.art-hero{position:relative;padding:74px 28px 96px;color:#fff;text-align:center;background-position:center;background-size:cover}
.art-hero .ah-cat{display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);color:#fff;font-size:13px;font-weight:600;padding:6px 16px;border-radius:99px}
.art-hero h1{font-size:38px;line-height:1.35;max-width:820px;margin:22px auto 18px;font-weight:800}
.art-hero .ah-meta{display:flex;justify-content:center;gap:22px;font-size:13px;color:rgba(255,255,255,.82);flex-wrap:wrap}
.art-wrap{max-width:860px;margin:0 auto}
.art-body{padding:52px 28px 16px}
.art-body .lead{font-size:19px;color:var(--ink);line-height:2;font-weight:500;border-left:4px solid var(--blue);padding-left:18px;margin-bottom:8px}
.art-body h2{font-size:26px;margin:40px 0 16px;display:flex;align-items:center;gap:12px;color:var(--ink)}
.art-body h2::before{content:'';width:5px;height:22px;border-radius:3px;background:linear-gradient(180deg,var(--blue),var(--blue-ink))}
.art-body p{font-size:16px;color:#3A4356;line-height:2;margin-bottom:18px}
.art-body blockquote{background:var(--blue-tint);border-left:4px solid var(--blue);border-radius:0 14px 14px 0;padding:18px 22px;font-size:15.5px;color:var(--blue-ink);line-height:1.9;margin:26px 0}
.art-points{list-style:none;margin:22px 0;display:flex;flex-direction:column;gap:12px}
.art-points li{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;font-size:15px;color:var(--ink)}
.art-points li::before{content:'✓';width:20px;height:20px;flex:none;margin-top:1px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}
.art-fig{margin:34px 0}
.art-fig img{width:100%;border-radius:18px;display:block;aspect-ratio:16/8;object-fit:cover;box-shadow:var(--shadow-2)}
.art-fig figcaption{font-size:12.5px;color:var(--ink-3);text-align:center;margin-top:12px}
.art-tags{display:flex;gap:10px;align-items:center;margin:34px 0 8px;padding-top:24px;border-top:1px solid var(--line);flex-wrap:wrap}
.art-tags span{font-size:14px;color:var(--ink-3)}
.art-tags a{font-size:13px;color:var(--blue);background:var(--blue-tint);padding:6px 14px;border-radius:99px;transition:.15s}
.art-tags a:hover{background:var(--blue);color:#fff}
.art-pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.art-pager a{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;color:var(--ink);transition:.2s}
.art-pager a:hover{border-color:var(--blue);box-shadow:var(--shadow-2)}
.art-pager a span{display:block;font-size:12px;color:var(--ink-3);margin-bottom:6px}
.art-pager a b{font-size:15px;line-height:1.5}
.art-cta{background:var(--blue-ink);background-image:radial-gradient(circle at 10% 120%,rgba(27,109,243,.4),transparent 55%);border-radius:22px;padding:36px;text-align:center;color:#fff;margin-top:50px}
.art-cta b{font-size:22px;display:block;margin-bottom:8px}
.art-cta p{color:#AEBAD6;font-size:14px;margin-bottom:20px}
@media (max-width:640px){.art-hero h1{font-size:28px}.art-hero{padding:56px 20px 76px}.art-pager{grid-template-columns:1fr}}

/* 文章详情V3：左目录 + 右正文（现代博客排版） */
.art2{padding-bottom:56px}
.art2-head{background:linear-gradient(180deg,#F2F7FF,#fff);border-bottom:1px solid var(--line);padding:38px 0 30px}
.art2-head .crumb{font-size:13px;color:var(--ink-3);margin-bottom:18px;display:block}
.art2-head .cat{display:inline-block;background:var(--blue);color:#fff;font-size:12.5px;font-weight:600;padding:5px 14px;border-radius:6px;margin-bottom:16px}
.art2-head h1{font-size:36px;line-height:1.4;font-weight:800;margin:0 0 16px;max-width:820px;color:var(--ink)}
.art2-head .meta{display:flex;gap:20px;font-size:13px;color:var(--ink-2);flex-wrap:wrap}
.art2-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:48px;max-width:var(--w);margin:0 auto;padding:40px 28px 0;align-items:start}
.art2-toc{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px}
.author-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 20px;text-align:center;box-shadow:var(--shadow-1)}
.author-card .av{width:62px;height:62px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--blue-ink));color:#fff;display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:800;margin:0 auto 12px}
.author-card b{display:block;font-size:15px;margin-bottom:6px}
.author-card p{font-size:12.5px;color:var(--ink-3);line-height:1.7;margin:0}
.author-card a{display:inline-block;margin-top:12px;font-size:12.5px;color:var(--blue);font-weight:600}
.toc{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px;box-shadow:var(--shadow-1)}
.toc b{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--ink);margin-bottom:8px}
.toc b svg{width:15px;height:15px;color:var(--blue)}
.toc a{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);padding:9px 0;border-bottom:1px dashed var(--line-2);transition:.15s}
.toc a em{font-style:normal;font-size:11.5px;color:var(--ink-3);flex:none}
.toc a.active{color:var(--blue);font-weight:600}
.toc a:last-child{border-bottom:none}
.toc a:hover{color:var(--blue);padding-left:6px}
.art2-body{max-width:760px;min-width:0}
.art2-body .cover{width:100%;border-radius:18px;aspect-ratio:16/8;object-fit:cover;margin-bottom:28px;box-shadow:var(--shadow-2)}
.art2-body .lead{font-size:19px;color:var(--ink);line-height:2;font-weight:500;border-left:4px solid var(--blue);padding-left:18px;margin-bottom:24px}
.art2-body h2{font-size:25px;margin:38px 0 16px;color:var(--ink);display:flex;align-items:center;gap:12px;scroll-margin-top:90px}
.art2-body h2::before{content:'';width:5px;height:21px;border-radius:3px;background:linear-gradient(180deg,var(--blue),var(--blue-ink))}
.art2-body p{font-size:16px;color:#3A4356;line-height:2;margin-bottom:18px}
.art2-body blockquote{background:var(--blue-tint);border-left:4px solid var(--blue);border-radius:0 14px 14px 0;padding:18px 22px;font-size:15.5px;color:var(--blue-ink);line-height:1.9;margin:26px 0}
.art2-body ul.pts{list-style:none;margin:22px 0;display:flex;flex-direction:column;gap:12px;padding:0}
.art2-body ul.pts li{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;font-size:15px;color:var(--ink)}
.art2-body ul.pts li::before{content:'✓';width:20px;height:20px;flex:none;margin-top:1px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}
.art2-body figure{margin:32px 0}
.art2-body figure img{width:100%;border-radius:16px;display:block}
.art2-body figcaption{font-size:12.5px;color:var(--ink-3);text-align:center;margin-top:10px}
.art2-tags{display:flex;gap:10px;align-items:center;margin:36px 0 8px;padding-top:24px;border-top:1px solid var(--line);flex-wrap:wrap}
.art2-tags span{font-size:14px;color:var(--ink-3)}
.art2-tags a{font-size:13px;color:var(--blue);background:var(--blue-tint);padding:6px 14px;border-radius:99px;transition:.15s}
.art2-tags a:hover{background:var(--blue);color:#fff}
.art2-pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.art2-pager a{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;color:var(--ink);transition:.2s}
.art2-pager a:hover{border-color:var(--blue);box-shadow:var(--shadow-2)}
.art2-pager a span{display:block;font-size:12px;color:var(--ink-3);margin-bottom:6px}
.art2-pager a b{font-size:15px;line-height:1.5}
@media (max-width:1024px){.art2-layout{grid-template-columns:1fr}.art2-toc{position:static;display:none}}
@media (max-width:640px){.art2-head h1{font-size:28px}.art2-layout{padding:28px 20px 0}.art2-pager{grid-template-columns:1fr}}

/* 行业场景：左编号类型 + 右错落卡片 */
.industry-split{display:grid;grid-template-columns:380px 1fr;gap:60px;align-items:start}
.industry-types{display:flex;flex-direction:column}
.industry-types a{display:flex;gap:18px;align-items:center;padding:22px 18px;border-bottom:1px solid var(--line);transition:.18s}
.industry-types a:last-child{border-bottom:none}
.industry-types a:hover{background:#fff;border-radius:14px;box-shadow:var(--shadow-2)}
.industry-types .no{font-size:27px;font-weight:800;color:var(--blue);width:46px;flex:none}
.industry-types b{font-size:17px;display:block;margin-bottom:3px}
.industry-types span{font-size:13px;color:var(--ink-3)}
.industry-cards{display:grid;grid-template-columns:1fr 1fr;gap:22px}

/* 模板头条：1 大 + 3 小 */
.tpl-lead{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
.tpl-lead .big .ratio-16-9{aspect-ratio:16/9}
.tpl-lead .stack{display:grid;gap:14px}

/* 资讯三栏（大 / 中 / 小） */
.news-3col{display:grid;grid-template-columns:1.25fr 1fr .9fr;gap:24px;align-items:start}

@media (max-width:1024px){
  .hero-c h1{font-size:42px}
  .ai-grid{grid-template-columns:1fr;gap:40px}
  .industry-split{grid-template-columns:1fr;gap:36px}
  .tpl-lead{grid-template-columns:1fr}
  .news-3col{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .stats-float{grid-template-columns:repeat(2,1fr)}
  .sf-item{border-bottom:1px solid var(--line)}
  .sf-item:nth-child(even){border-right:none}
  .num-feature .nf{flex-direction:column}
  .zigzag{grid-template-columns:1fr}
  .zz:nth-child(odd){border-right:none;padding-right:6px}
  .industry-cards{grid-template-columns:1fr}
  .news-3col{grid-template-columns:1fr}
}
.news-mini{display:flex;flex-direction:column}
.news-mini li{border-bottom:1px solid var(--line);padding:11px 0}
.news-mini li:last-child{border-bottom:none}
.news-mini a{display:flex;gap:14px;align-items:baseline}
.news-mini .d{font-size:12.5px;color:var(--ink-3);flex:none}
.news-mini b{font-size:14.5px;font-weight:600;transition:.15s}
.news-mini a:hover b{color:var(--blue)}
.brand-logo-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.brand-logo-row>span{display:inline-flex;align-items:baseline;gap:8px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 30px;font-size:16px;font-weight:700;color:var(--ink);box-shadow:var(--shadow-1)}
.brand-logo-row .t{font-size:12px;font-weight:500;color:var(--ink-3)}

/* ==========================================================================
   模板列表页独立版式：左分类栏 + 右网格
   ========================================================================== */
.tpl-layout{display:grid;grid-template-columns:240px 1fr;gap:36px;align-items:start}
.tpl-cats{position:sticky;top:calc(var(--nav-h) + 24px);background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px 18px;box-shadow:var(--shadow-1)}
.tpl-cats h5{font-size:12.5px;color:var(--ink-3);font-weight:700;letter-spacing:1px;margin:4px 8px 12px}
.tpl-cats .tc{display:block;width:100%;text-align:left;padding:11px 16px;border-radius:10px;font-size:14.5px;color:var(--ink-2);transition:.15s;margin-bottom:2px}
.tpl-cats .tc:hover{color:var(--blue);background:var(--blue-tint)}
.tpl-cats .tc.active{background:var(--blue);color:#fff;font-weight:600}
.tpl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

/* ==========================================================================
   新闻列表页独立版式：杂志式左大头条 + 右小卡
   ========================================================================== */
.news-mag{display:grid;grid-template-columns:1.35fr 1fr;gap:36px;align-items:start}
.news-feature{border-radius:20px;overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-2)}
.news-feature img{width:100%;aspect-ratio:16/10;object-fit:cover}
.news-feature .nb{padding:24px 26px}
.news-feature .nb h3{font-size:22px;font-weight:800;margin:12px 0 10px;line-height:1.4}
.news-feature .nb h3 a:hover{color:var(--blue)}
.news-feature .nb p{color:var(--ink-2);font-size:14.5px;line-height:1.8}
.news-rail{display:flex;flex-direction:column;gap:16px}
.news-rail .nr{display:flex;gap:18px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px;box-shadow:var(--shadow-1);transition:.18s}
.news-rail .nr:hover{box-shadow:var(--shadow-2);transform:translateX(3px)}
.news-rail .nr .thumb{width:96px;flex:none;border-radius:10px;overflow:hidden}
.news-rail .nr .thumb img{aspect-ratio:3/2;object-fit:cover}
.news-rail .nr b{font-size:14.5px;font-weight:600;line-height:1.5;display:block}
.news-rail .nr .d{font-size:12px;color:var(--ink-3);margin-top:4px;display:block}

@media (max-width:1024px){
  .tpl-layout{grid-template-columns:1fr}
  .tpl-cats{position:static;display:flex;flex-wrap:wrap;gap:8px;border:none;box-shadow:none;padding:0}
  .tpl-cats h5{display:none}
  .tpl-cats .tc{width:auto;border:1px solid var(--line-2);border-radius:999px;padding:8px 18px;font-size:13.5px}
  .tpl-cats .tc.active{background:var(--blue-ink);border-color:var(--blue-ink)}
  .tpl-grid{grid-template-columns:repeat(2,1fr)}
  .news-mag{grid-template-columns:1fr}
}
@media (max-width:768px){
  .tpl-grid{grid-template-columns:1fr}
}

/* ==========================================================================
   价格页独立版式：套餐卡 + 全宽对比表 + FAQ
   ========================================================================== */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:stretch}
.plan{position:relative;background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px 28px;box-shadow:var(--shadow-1)}
.plan.featured{border:2px solid var(--blue);box-shadow:0 24px 60px -20px rgba(27,109,243,.4)}
.plan .badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--blue);color:#fff;font-size:12.5px;font-weight:700;padding:6px 16px;border-radius:999px}
.plan .pname{font-size:16px;font-weight:700;margin-bottom:8px;color:var(--ink)}
.plan .price{font-size:44px;font-weight:800;color:var(--blue-ink)}
.plan .price i{font-size:15px;font-style:normal;color:var(--ink-3);font-weight:500;margin-left:2px}
.plan ul{margin:20px 0 24px;display:flex;flex-direction:column;gap:10px}
.plan li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);align-items:flex-start}
.plan li i{color:var(--blue);flex:none;margin-top:1px}
.plan li.none{color:var(--ink-3)}
.price-table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-2)}
.price-table{width:100%;table-layout:fixed;border-collapse:collapse;min-width:660px}
.price-table th,.price-table td{padding:15px 18px;text-align:center;border-bottom:1px solid var(--line);font-size:14px}
.price-table th{background:var(--blue-tint);color:var(--blue-ink);font-weight:700}
.price-table th:first-child,.price-table td:first-child{text-align:left;font-weight:600;color:var(--ink)}
.price-table tr:last-child td{border-bottom:none}
.price-table .yes{color:var(--blue)}
.price-table .no{color:var(--ink-3)}
.faq{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 22px;box-shadow:var(--shadow-1)}
.faq summary{cursor:pointer;padding:16px 0;font-size:15.5px;font-weight:600;display:flex;justify-content:space-between;align-items:center;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--blue);font-weight:500}
.faq details[open] summary::after{content:"−"}
.faq .faq-a{padding:0 0 18px;color:var(--ink-2);font-size:14px;line-height:1.8}

/* ==========================================================================
   案例页独立版式：左大卡 + 右小卡错落
   ========================================================================== */
.case-mix{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;align-items:start}
.case-big .ratio-16-9{aspect-ratio:16/9}
.case-stack{display:grid;gap:20px}
.case-stat{display:grid;grid-template-columns:repeat(3,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-3);overflow:hidden}
.case-stat>div{padding:26px;text-align:center;border-right:1px solid var(--line)}
.case-stat>div:last-child{border-right:none}
.case-stat b{font-size:32px;font-weight:800;color:var(--blue-ink);display:block}
.case-stat b i{font-style:normal;color:var(--blue)}
.case-stat span{font-size:13px;color:var(--ink-2);margin-top:6px;display:block}

/* ==========================================================================
   关于页独立版式：简介 + 数据条 + 时间轴
   ========================================================================== */
.about-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-3);overflow:hidden}
.about-stats>div{padding:28px;text-align:center;border-right:1px solid var(--line)}
.about-stats>div:last-child{border-right:none}
.about-stats b{font-size:34px;font-weight:800;color:var(--blue-ink);display:block}
.about-stats b i{font-style:normal;color:var(--blue)}
.about-stats span{font-size:13px;color:var(--ink-2);margin-top:6px;display:block}
.timeline{position:relative;margin-top:40px;display:flex;flex-direction:column;gap:26px;padding-left:34px}
.timeline::before{content:"";position:absolute;left:10px;top:8px;bottom:8px;width:2px;background:var(--line-2)}
.tl{position:relative}
.tl::before{content:"";position:absolute;left:-30px;top:6px;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid var(--blue)}
.tl .y{font-size:12.5px;color:var(--blue);font-weight:700;margin-bottom:4px;display:block}
.tl b{font-size:16px;display:block;margin-bottom:6px}
.tl p{color:var(--ink-2);font-size:14px;line-height:1.8}

@media (max-width:900px){
  .plan-grid,.about-stats,.case-stat{grid-template-columns:1fr 1fr}
  .case-mix{grid-template-columns:1fr}
  .case-stat>div{border-bottom:1px solid var(--line)}
  .case-stat>div:nth-child(even){border-right:none}
  .about-stats>div{border-bottom:1px solid var(--line)}
  .about-stats>div:nth-child(even){border-right:none}
}
@media (max-width:640px){
  .plan-grid,.about-stats,.case-stat{grid-template-columns:1fr}
  .about-stats>div{border-right:none}
}

/* ==========================================================================
   新闻详情页框架：面包屑 + 左正文 + 右侧栏（分类/最新/相关）
   ========================================================================== */
.breadcrumb{font-size:13px;color:var(--ink-3);margin-bottom:20px;display:flex;gap:8px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--blue)}
.breadcrumb .sep{color:var(--ink-4)}
.article-layout{display:grid;grid-template-columns:1fr 322px;gap:52px;align-items:start}
.article{min-width:0}
.article .a-tags{margin:6px 0 16px}
.article .a-title{font-size:34px;font-weight:800;line-height:1.35;margin:6px 0 18px}
.article .a-meta{display:flex;gap:18px;flex-wrap:wrap;color:var(--ink-2);font-size:13.5px;margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid var(--line)}
.article .a-meta span{display:inline-flex;gap:6px;align-items:center}
.article .a-cover{border-radius:18px;overflow:hidden;margin-bottom:28px;box-shadow:var(--shadow-2)}
.article .a-cover img{width:100%;aspect-ratio:16/8;object-fit:cover}
.article .a-body{font-size:15.5px;line-height:2;color:var(--ink-1)}
.article .a-body h2{font-size:22px;font-weight:700;margin:34px 0 12px;color:var(--blue-ink)}
.article .a-body p{margin-bottom:16px}
.article .a-body blockquote{margin:24px 0;padding:18px 22px;border-left:4px solid var(--blue);background:var(--blue-tint);border-radius:0 12px 12px 0;color:var(--blue-ink);font-weight:500}
.article .a-body ul{margin:0 0 18px;padding-left:0;display:flex;flex-direction:column;gap:10px}
.article .a-body ul li{display:flex;gap:10px;align-items:flex-start}
.article .a-body ul li::before{content:"";flex:none;width:6px;height:6px;border-radius:50%;background:var(--blue);margin-top:12px}
.article .a-img{margin:30px 0;border-radius:18px;overflow:hidden;box-shadow:var(--shadow-2);border:1px solid var(--line)}
.article .a-img img{width:100%;display:block;aspect-ratio:16/8;object-fit:cover}
.article .a-img figcaption{font-size:12.5px;color:var(--ink-3);text-align:center;padding:12px 16px;background:#F6F9FF;margin:0}
.article .a-tag-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:28px}
.article .a-tag-row .lb{font-size:13px;color:var(--ink-3);font-weight:600;margin-right:6px}
.article .a-tag-row a{font-size:13px;background:var(--blue-tint);color:var(--blue-ink);padding:6px 14px;border-radius:999px;transition:.15s}
.article .a-tag-row a:hover{background:var(--blue);color:#fff}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.pager a{padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-1);font-size:13.5px;color:var(--ink-2);transition:.18s}
.pager a:hover{box-shadow:var(--shadow-2);color:var(--blue)}
.pager a:last-child{text-align:right}
.pager a small{display:block;font-size:12px;color:var(--ink-3);margin-bottom:4px}
.article-side{display:flex;flex-direction:column;gap:22px;position:sticky;top:calc(var(--nav-h) + 24px)}
.side-block{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow-1)}
.side-block h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--blue-ink);display:flex;align-items:center;gap:8px}
.side-block h4 i{color:var(--blue)}
.side-cat a{display:flex;justify-content:space-between;align-items:center;padding:11px 14px;border-radius:10px;font-size:14px;color:var(--ink-2);transition:.15s}
.side-cat a:hover,.side-cat a.active{background:var(--blue-tint);color:var(--blue-ink)}
.side-cat a span{color:var(--ink-3);font-size:12.5px}
.side-list{display:flex;flex-direction:column}
.side-list a{padding:12px 0;border-bottom:1px solid var(--line);display:block}
.side-list a:last-child{border-bottom:none}
.side-list a b{font-size:14px;font-weight:600;line-height:1.5;display:block;transition:.15s}
.side-list a:hover b{color:var(--blue)}
.side-list a .d{font-size:12px;color:var(--ink-3);margin-top:4px;display:block}
.side-cta{background:var(--blue-ink);color:#fff;border:none;border-radius:16px;padding:26px 24px;text-align:center}
.side-cta b{font-size:16px;display:block;margin-bottom:6px}
.side-cta p{font-size:13px;color:#AEBAD6;margin-bottom:16px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:28px}

@media (max-width:1000px){
  .article-layout{grid-template-columns:1fr}
  .article-side{position:static;display:grid;grid-template-columns:1fr 1fr;align-items:start}
  .side-cta{grid-column:1/-1}
  .related-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .article-side{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr}
  .pager a:last-child{text-align:left}
  .article .a-title{font-size:26px}
}

/* ==========================================================================
   解决方案页增强模块：核心优势 / 售后服务 / 底部新闻+帮助文档
   ========================================================================== */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.adv{display:flex;gap:18px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 24px;box-shadow:var(--shadow-1)}
.adv .ico{width:50px;height:50px;flex:none;border-radius:14px;background:var(--blue-tint);color:var(--blue);display:flex;align-items:center;justify-content:center}
.adv .ico svg{width:24px;height:24px}
.adv b{font-size:16px;display:block;margin-bottom:6px}
.adv p{font-size:13.5px;color:var(--ink-2);line-height:1.7;margin:0}
.support-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.support{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 24px;box-shadow:var(--shadow-1)}
.support .ico{width:48px;height:48px;flex:none;border-radius:13px;background:#fff;border:1px solid var(--line-2);color:var(--blue);display:flex;align-items:center;justify-content:center}
.support .ico svg{width:23px;height:23px}
.support b{font-size:15.5px;display:block;margin-bottom:5px}
.support p{font-size:13px;color:var(--ink-2);line-height:1.7;margin:0}
.doc-news{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start}
.doc-block{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:var(--shadow-2)}
.doc-block h3{font-size:18px;margin-bottom:6px}
.doc-block .sub{color:var(--ink-3);font-size:13px;margin-bottom:16px}
.doc-list{display:flex;flex-direction:column}
.doc-list li{padding:12px 0;border-bottom:1px solid var(--line)}
.doc-list li:last-child{border-bottom:none}
.doc-list a{display:flex;gap:14px;align-items:baseline}
.doc-list .d{font-size:12px;color:var(--ink-3);flex:none}
.doc-list b{font-size:14.5px;font-weight:600;transition:.15s}
.doc-list a:hover b{color:var(--blue)}

@media (max-width:900px){
  .adv-grid,.support-grid{grid-template-columns:1fr 1fr}
  .doc-news{grid-template-columns:1fr}
}
@media (max-width:640px){
  .adv-grid,.support-grid{grid-template-columns:1fr}
}

/* ==========================================================================
   导航二级分类下拉（网站模板）
   ========================================================================== */
.nav-item{position:relative}
.nav-item .caret{width:15px;height:15px;margin-left:3px;transition:.2s}
.nav-item:hover .caret{transform:rotate(180deg)}
.dropdown-menu{position:absolute;top:calc(100% + 12px);left:50%;transform:translateX(-50%) translateY(8px);min-width:240px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-2);padding:12px;opacity:0;visibility:hidden;transition:.2s;z-index:60}
.nav-item:hover .dropdown-menu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.dropdown-menu::before{content:"";position:absolute;top:-12px;left:0;right:0;height:12px}
.dropdown-menu .dm-head{display:flex;justify-content:space-between;align-items:center;padding:8px 10px 6px;font-size:12px;color:var(--ink-3);font-weight:700;letter-spacing:1px}
.dropdown-menu a{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 14px;border-radius:10px;font-size:14px;color:var(--ink-2);transition:.15s}
.dropdown-menu a:hover{background:var(--blue-tint);color:var(--blue-ink)}
.dropdown-menu a .cnt{font-size:11.5px;color:var(--ink-3);white-space:nowrap}
.dropdown-menu a.dm-all{border-top:1px solid var(--line);margin-top:6px;padding-top:12px;color:var(--blue);font-weight:600}
.dropdown-menu a.dm-all:hover{background:none;color:var(--blue-ink)}
/* 移动端二级子列表 */
.mobile-sub{display:flex;flex-direction:column}
.mobile-sub a{padding:10px 20px 10px 46px;color:var(--ink-2);font-size:14px;border-bottom:1px solid var(--line);display:block}
.mobile-sub a:last-child{border-bottom:none}
.mobile-sub a:hover{color:var(--blue)}
.mobile-sub .ms-head{font-size:12px;color:var(--ink-3);padding:12px 20px 4px 46px;font-weight:700}

/* ==========================================================================
   网站模板页 v4 框架：hero背景图 + 横向分类标签 + 精致大图卡片
   ========================================================================== */
.tpl-hero-filter{margin:-34px auto 0;position:relative;z-index:5;max-width:var(--w);padding:0 28px}
.tpl-filter-bar{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;background:#fff;border:1px solid var(--line);border-radius:20px;padding:16px;box-shadow:var(--shadow-2)}
.tpl-filter-bar .tf{flex:none;padding:11px 24px;border-radius:999px;font-size:14.5px;font-weight:600;color:var(--ink-2);background:#F4F7FC;transition:.2s;cursor:pointer}
.tpl-filter-bar .tf:hover{color:var(--blue);background:var(--blue-tint)}
.tpl-filter-bar .tf.active{background:var(--blue);color:#fff}
.tpl-grid-lg{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.tpl-card{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow-1);transition:.28s;display:block}
.tpl-card:hover{box-shadow:var(--shadow-3);transform:translateY(-6px);border-color:var(--line-2)}
.tpl-media{position:relative;overflow:hidden}
.tpl-media img{width:100%;aspect-ratio:3/2;object-fit:cover;display:block;transition:.5s}
.tpl-card:hover .tpl-media img{transform:scale(1.06)}
.tpl-tag{position:absolute;top:14px;left:14px;background:rgba(255,255,255,.94);color:var(--blue-ink);font-size:12px;font-weight:700;padding:5px 13px;border-radius:999px;box-shadow:0 2px 8px rgba(11,64,216,.12)}
.tpl-info{padding:20px 22px 22px}
.tpl-title-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.tpl-title-row b{font-size:17px;color:var(--ink)}
.tpl-title-row i{color:var(--blue);width:18px;height:18px;transition:.25s}
.tpl-card:hover .tpl-title-row i{transform:translate(2px,-2px)}
.tpl-info p{font-size:13.5px;color:var(--ink-2);line-height:1.7;margin-bottom:16px}
.tpl-cta{display:inline-flex;align-items:center;gap:4px;font-size:14px;font-weight:600;color:var(--blue)}
.tpl-cta::after{content:"→";transition:.2s}
.tpl-card:hover .tpl-cta{color:var(--blue-ink)}

@media (max-width:1024px){.tpl-grid-lg{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.tpl-grid-lg{grid-template-columns:1fr}}

/* ==========================================================================
   首页 hero 轮播（幻灯片）
   ========================================================================== */
.hero-slider{position:relative;overflow:hidden;min-height:560px;background:#0B40D8}
.hero-slider .slide{position:absolute;inset:0;opacity:0;transition:opacity .8s ease;display:flex;align-items:center}
.hero-slider .slide.active{opacity:1;z-index:1}
.hero-slider .slide-inner{width:100%;max-width:var(--w);margin:0 auto;padding:100px 28px 160px;text-align:center}
.hero-slider .slide-inner h1,.hero-slider .slide-inner h2{color:#fff;font-size:44px;line-height:1.28;margin:18px 0 14px;font-weight:800}
.hero-slider .slide-inner .hero-lead{color:rgba(255,255,255,.94);font-size:17px;margin:0 auto 22px}
.hero-slider .slide-inner .hero-points{color:#fff}
.hero-slider .slide-inner .hero-point{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.28)}
.hero-slider .slide-inner .hero-point i{color:#fff}
.slide-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:46px;height:46px;border-radius:50%;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);color:#fff;display:grid;place-items:center;cursor:pointer;transition:.2s}
.slide-arrow:hover{background:#fff;color:var(--blue)}
.slide-arrow.prev{left:22px}
.slide-arrow.next{right:22px}
.slide-dots{position:absolute;bottom:118px;left:50%;transform:translateX(-50%);z-index:4;display:flex;gap:9px}
.slide-dots span{width:9px;height:9px;border-radius:99px;background:rgba(255,255,255,.5);cursor:pointer;transition:.25s}
.slide-dots span.active{width:26px;background:#fff}
.hero-slider .stats-float{position:absolute;left:50%;transform:translateX(-50%);bottom:22px;z-index:5;width:min(88%,760px);background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.24);backdrop-filter:blur(12px);box-shadow:0 18px 50px rgba(4,28,112,.35)}
.hero-slider .sf-item{border-right:1px solid rgba(255,255,255,.16)}
.hero-slider .sf-item:last-child{border-right:none}
.hero-slider .sf-item b{color:#fff;font-size:32px}
.hero-slider .sf-item b i{color:#A9C8FF}
.hero-slider .sf-item span{color:rgba(255,255,255,.8)}
@media (max-width:640px){
  .hero-slider{min-height:520px}
  .hero-slider .slide-inner{padding:86px 20px 150px}
  .hero-slider .slide-inner h1,.hero-slider .slide-inner h2{font-size:29px}
  .slide-arrow{display:none}
  .slide-dots{bottom:128px}
  .hero-slider .stats-float{width:calc(100% - 32px)}
  .hero-slider .sf-item{border-bottom:1px solid rgba(255,255,255,.14);border-right:none}
  .hero-slider .sf-item:nth-child(even){border-right:none}
}