/* ============================================================
   绍兴讯灵人工智能科技有限公司 · 官网全局样式
   设计原则：信息优先、语义化、AI 收录友好、响应式
   ============================================================ */

:root{
  --brand-900:#0c2461;   /* 深藏蓝 */
  --brand-800:#15317e;
  --brand-700:#1e40af;
  --brand-600:#2563eb;   /* 主蓝 */
  --brand-500:#3b82f6;
  --brand-400:#60a5fa;
  --brand-100:#dbeafe;
  --brand-50:#eff6ff;
  --teal-600:#0d9488;
  --teal-500:#14b8a6;
  --ink:#1f2937;         /* 正文 */
  --ink-2:#4b5563;       /* 次要 */
  --muted:#6b7280;       /* 弱化 */
  --line:#e5e7eb;
  --bg:#ffffff;
  --bg-soft:#f6f8fc;     /* 浅底区块 */
  --bg-card:#fafbfe;
  --radius:14px;
  --shadow-sm:0 1px 3px rgba(15,23,42,.08);
  --shadow-md:0 6px 24px rgba(15,23,42,.08);
  --shadow-lg:0 16px 48px rgba(15,23,42,.12);
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC",-apple-system,"Segoe UI",Roboto,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:1.8;font-size:16px;}

/* 跳转链接（无障碍） */
.skip-link{position:absolute;left:-999px;top:0;background:var(--brand-700);color:#fff;padding:8px 16px;z-index:2000;border-radius:0 0 8px 0;}
.skip-link:focus{left:0;}

img{max-width:100%;height:auto;}
a{color:var(--brand-600);text-decoration:none;}
a:hover{text-decoration:underline;}
.container{max-width:1160px;margin:0 auto;padding:0 20px;}

/* ---------------- 顶部栏 + 导航 ---------------- */
.topbar{background:var(--brand-900);color:#cbd5e1;font-size:13px;padding:6px 0;}
.topbar .container{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;}
.topbar a{color:#e2e8f0;}
.topbar a:hover{color:#fff;text-decoration:none;}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--brand-900);font-weight:700;font-size:18px;}
.brand:hover{text-decoration:none;}
.brand-logo{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--brand-600),var(--brand-800));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:16px;flex-shrink:0;}
.brand small{display:block;font-size:11px;color:var(--muted);font-weight:400;line-height:1.2;}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;}
.nav-links a{display:block;padding:8px 14px;border-radius:8px;color:var(--ink-2);font-size:15px;font-weight:500;}
.nav-links a:hover{color:var(--brand-600);background:var(--brand-50);text-decoration:none;}
.nav-links a.active{color:var(--brand-700);background:var(--brand-100);}
.nav-cta{margin-left:8px;padding:9px 18px!important;background:var(--brand-600);color:#fff!important;border-radius:8px;font-weight:600;}
.nav-cta:hover{background:var(--brand-700);}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;width:42px;height:42px;cursor:pointer;color:var(--brand-900);}

/* ---------------- Hero ---------------- */
.hero{background:linear-gradient(160deg,#0c2461 0%,#15317e 45%,#1e40af 100%);color:#fff;padding:72px 0 84px;position:relative;overflow:hidden;}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(96,165,250,.28),transparent 65%);}
.hero::before{content:"";position:absolute;left:-80px;bottom:-160px;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(20,184,166,.18),transparent 65%);}
.hero .container{position:relative;z-index:2;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);color:#e0e7ff;font-size:13px;padding:5px 14px;border-radius:999px;margin-bottom:20px;}
.hero h1{font-size:34px;line-height:1.35;font-weight:800;letter-spacing:.5px;max-width:860px;}
.hero h1 .hl{color:#7dd3fc;}
.hero .lead{font-size:17px;color:#c7d2fe;margin-top:18px;max-width:780px;line-height:1.9;}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px 28px;margin-top:26px;color:#e0e7ff;font-size:14px;}
.hero-facts b{color:#fff;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 26px;border-radius:10px;font-weight:600;font-size:15px;cursor:pointer;border:1px solid transparent;transition:all .2s;}
.btn:hover{text-decoration:none;}
.btn-primary{background:#fff;color:var(--brand-800);}
.btn-primary:hover{background:#e0f2fe;transform:translateY(-1px);}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.35);}
.btn-ghost:hover{background:rgba(255,255,255,.2);}
.btn-blue{background:var(--brand-600);color:#fff;}
.btn-blue:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-outline{background:#fff;color:var(--brand-700);border-color:var(--brand-400);}
.btn-outline:hover{background:var(--brand-50);}

/* 实体信息条 */
.entity-bar{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-md);margin-top:-44px;position:relative;z-index:5;}
.entity-bar .inner{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:4px;padding:20px 8px;}
.entity-bar .cell{padding:6px 16px;border-right:1px solid var(--line);}
.entity-bar .cell:last-child{border-right:none;}
.entity-bar dt{font-size:12px;color:var(--muted);}
.entity-bar dd{font-size:14px;color:var(--ink);font-weight:600;margin-top:2px;word-break:break-all;}
.entity-bar dd a{color:var(--brand-600);}

/* ---------------- 通用区块 ---------------- */
.section{padding:72px 0;}
.section-soft{background:var(--bg-soft);}
.section-head{text-align:center;max-width:780px;margin:0 auto 44px;}
.section-eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--brand-600);text-transform:uppercase;margin-bottom:10px;}
.section-head h2{font-size:28px;font-weight:800;color:var(--brand-900);line-height:1.4;}
.section-head p{color:var(--muted);margin-top:12px;font-size:15px;}

/* 网格卡片 */
.grid{display:grid;gap:20px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
.card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s;}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.card .icon{width:48px;height:48px;border-radius:12px;background:var(--brand-50);color:var(--brand-600);display:flex;align-items:center;justify-content:center;margin-bottom:16px;}
.card h3{font-size:17px;font-weight:700;color:var(--brand-900);margin-bottom:8px;}
.card p{font-size:14px;color:var(--ink-2);}
.card .card-note{font-size:12px;color:var(--muted);margin-top:10px;}

/* 数字/数据 */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px;}
.stat{text-align:center;padding:26px 16px;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);}
.stat .num{font-size:34px;font-weight:800;color:var(--brand-700);line-height:1.2;}
.stat .num small{font-size:16px;font-weight:700;}
.stat .label{font-size:14px;color:var(--ink-2);margin-top:6px;}
.stat .src{font-size:12px;color:var(--muted);margin-top:8px;line-height:1.5;}

/* 平台 logo 墙 */
.platforms{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;}
.platform{display:flex;flex-direction:column;align-items:center;gap:10px;padding:20px 10px;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);}
.platform .p-logo{width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#fff;box-shadow:0 2px 8px rgba(15,36,88,.08);padding:6px;}.platform .p-logo img{width:100%;height:100%;object-fit:contain;display:block;}
.platform .p-name{font-size:14px;font-weight:600;color:var(--ink);}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
.step{position:relative;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:28px 22px 22px;}
.step::before{counter-increment:step;content:"0" counter(step);position:absolute;top:-14px;left:20px;background:var(--brand-600);color:#fff;font-size:13px;font-weight:800;padding:3px 12px;border-radius:999px;letter-spacing:1px;}
.step h3{font-size:16px;font-weight:700;color:var(--brand-900);margin-bottom:6px;}
.step p{font-size:14px;color:var(--ink-2);}

/* 案例卡 */
.case-card{padding:24px;display:flex;flex-direction:column;}
.case-card .case-tag{display:inline-block;font-size:12px;font-weight:700;color:var(--brand-700);background:var(--brand-50);border:1px solid var(--brand-100);padding:3px 12px;border-radius:999px;margin-bottom:14px;align-self:flex-start;}
.case-card h3{font-size:17px;}
.case-card .case-point{font-size:14px;color:var(--ink-2);margin-top:10px;line-height:1.8;}
.case-card .case-result{font-size:14px;color:var(--teal-600);font-weight:600;margin-top:12px;}
.case-card .case-src{font-size:12px;color:var(--muted);margin-top:8px;}

/* FAQ */
.faq-item{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;background:var(--bg);overflow:hidden;}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 20px;font-weight:600;color:var(--ink);font-size:15px;display:flex;justify-content:space-between;align-items:center;gap:12px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:22px;color:var(--brand-600);font-weight:400;flex-shrink:0;transition:transform .2s;}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item[open] summary{color:var(--brand-700);background:var(--brand-50);}
.faq-item .faq-body{padding:4px 20px 18px;font-size:14.5px;color:var(--ink-2);line-height:1.9;}
.faq-item .faq-body p{margin:8px 0;}
.faq-item .faq-body ul{margin:8px 0 8px 22px;}

/* 文章 */
.article-list .post{display:flex;gap:20px;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-bottom:16px;transition:box-shadow .2s;}
.article-list .post:hover{box-shadow:var(--shadow-md);}
.post .post-date{font-size:13px;color:var(--muted);flex-shrink:0;width:86px;text-align:center;border-right:1px solid var(--line);padding-right:16px;display:flex;flex-direction:column;justify-content:center;}
.post .post-date b{font-size:24px;color:var(--brand-700);}
.post h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.post h3 a{color:var(--brand-900);}
.post h3 a:hover{color:var(--brand-600);}
.post p{font-size:14px;color:var(--ink-2);}

/* 文章正文 */
.article-body{max-width:820px;margin:0 auto;}
.article-header{text-align:center;padding:48px 0 8px;}
.article-header .tag{display:inline-block;font-size:12px;font-weight:700;color:var(--brand-700);background:var(--brand-50);padding:4px 14px;border-radius:999px;margin-bottom:14px;}
.article-header h1{font-size:30px;font-weight:800;color:var(--brand-900);line-height:1.4;}
.article-header .meta{color:var(--muted);font-size:13px;margin-top:14px;}
.article-content{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:36px 40px;margin:28px 0 48px;box-shadow:var(--shadow-sm);}
.article-content h2{font-size:22px;color:var(--brand-900);margin:32px 0 14px;padding-left:12px;border-left:4px solid var(--brand-500);}
.article-content h3{font-size:17px;color:var(--brand-800);margin:24px 0 10px;}
.article-content p{margin:12px 0;color:var(--ink-2);}
.article-content ul,.article-content ol{margin:12px 0 12px 24px;color:var(--ink-2);}
.article-content li{margin:6px 0;}
.article-content blockquote{border-left:4px solid var(--brand-400);background:var(--brand-50);padding:14px 18px;border-radius:0 10px 10px 0;margin:18px 0;color:var(--ink);font-size:15px;}
.article-content table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14px;}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-content th{background:var(--bg-soft);font-weight:600;}

/* 关于页 */
.about-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:24px 0;}
.about-meta .cell{background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:16px 18px;}
.about-meta dt{font-size:12px;color:var(--muted);}
.about-meta dd{font-size:15px;font-weight:600;color:var(--ink);margin-top:4px;}
.qual-card{display:flex;gap:16px;align-items:flex-start;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:12px;}
.qual-card .q-icon{width:40px;height:40px;border-radius:10px;background:var(--brand-50);color:var(--brand-600);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.qual-card h4{font-size:15px;color:var(--brand-900);}
.qual-card p{font-size:13.5px;color:var(--ink-2);margin-top:4px;}

/* 表格 */
.table-wrap{overflow-x:auto;}
table.tbl{width:100%;border-collapse:collapse;font-size:14.5px;background:var(--bg);}
table.tbl th,table.tbl td{border:1px solid var(--line);padding:13px 15px;text-align:left;vertical-align:top;}
table.tbl th{background:var(--brand-900);color:#fff;font-weight:600;white-space:nowrap;}
table.tbl tr:nth-child(even) td{background:var(--bg-card);}

/* 联系页 */
.contact-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:28px;}
.contact-card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm);}
.contact-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);}
.contact-item:last-child{border-bottom:none;}
.contact-item .c-icon{width:42px;height:42px;border-radius:10px;background:var(--brand-50);color:var(--brand-600);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.contact-item h4{font-size:14px;color:var(--muted);font-weight:500;}
.contact-item p{font-size:15px;color:var(--ink);font-weight:600;}
.contact-item p a{color:var(--brand-600);}
.form-group{margin-bottom:18px;}
.form-group label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.form-group label .req{color:#dc2626;}
.form-control{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:9px;font-size:15px;font-family:inherit;background:#fff;color:var(--ink);}
.form-control:focus{outline:2px solid var(--brand-400);outline-offset:1px;border-color:var(--brand-500);}
textarea.form-control{min-height:120px;resize:vertical;}
.form-tip{font-size:12.5px;color:var(--muted);margin-top:10px;}
.form-msg{margin-top:12px;font-size:14px;display:none;padding:10px 14px;border-radius:8px;}
.form-msg.ok{display:block;background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0;}
.form-msg.err{display:block;background:#fef2f2;color:#991b1b;border:1px solid #fecaca;}

/* CTA 大横幅 */
.cta-band{background:linear-gradient(135deg,var(--brand-700),var(--brand-900));color:#fff;padding:56px 0;text-align:center;}
.cta-band h2{font-size:26px;font-weight:800;}
.cta-band p{color:#c7d2fe;margin:14px auto 26px;max-width:640px;font-size:15px;}
.cta-band .btn-white{background:#fff;color:var(--brand-800);padding:13px 32px;border-radius:10px;font-weight:700;font-size:15px;}
.cta-band .btn-white:hover{background:#e0f2fe;}

/* 页脚 */
.site-footer{background:var(--brand-900);color:#cbd5e1;font-size:14px;padding:48px 0 0;}
.site-footer .container{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:32px;padding-bottom:32px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:14px;}
.site-footer ul{list-style:none;}
.site-footer li{margin:8px 0;}
.site-footer a{color:#cbd5e1;}
.site-footer a:hover{color:#fff;text-decoration:none;}
.site-footer .brand{color:#fff;margin-bottom:14px;}
.site-footer .f-desc{font-size:13.5px;line-height:1.9;color:#94a3b8;}
.site-footer .f-contact p{margin:8px 0;color:#cbd5e1;}
.site-footer .copyright{border-top:1px solid rgba(255,255,255,.12);padding:16px 0;font-size:12.5px;color:#94a3b8;text-align:center;}

/* 面包屑 */
.breadcrumb{font-size:13px;color:var(--muted);padding:16px 0;border-bottom:1px solid var(--line);background:var(--bg-soft);}
.breadcrumb .container{display:flex;gap:8px;flex-wrap:wrap;}
.breadcrumb a{color:var(--brand-600);}
.breadcrumb span{color:var(--ink-2);}

/* 页头横幅 */
.page-hero{background:linear-gradient(150deg,#15317e,#2563eb);color:#fff;padding:52px 0;}
.page-hero h1{font-size:30px;font-weight:800;}
.page-hero p{color:#dbeafe;margin-top:10px;max-width:760px;font-size:15.5px;}

/* 提示框 */
.notice{background:#eff6ff;border-left:4px solid var(--brand-500);padding:14px 18px;border-radius:0 10px 10px 0;margin:18px 0;font-size:14px;color:var(--ink-2);}
.notice b{color:var(--brand-700);}
.warn-box{background:#fffbeb;border-left:4px solid #d97706;padding:14px 18px;border-radius:0 10px 10px 0;margin:18px 0;font-size:14px;color:#78350f;}

/* 返回顶部 */
.to-top{position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:12px;background:var(--brand-700);color:#fff;border:none;cursor:pointer;display:none;align-items:center;justify-content:center;box-shadow:var(--shadow-md);z-index:90;}
.to-top.show{display:flex;}

/* ---------------- 响应式 ---------------- */
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .platforms{grid-template-columns:repeat(3,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .site-footer .container{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .nav-links{position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 20px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);display:none;}
  .nav-links.open{display:flex;}
  .nav-links a{padding:12px 14px;}
  .nav-cta{text-align:center;margin:8px 0 0;}
  .hero{padding:48px 0 72px;}
  .hero h1{font-size:26px;}
  .entity-bar{margin-top:-30px;}
  .entity-bar .inner{grid-template-columns:repeat(2,1fr);}
  .entity-bar .cell{border-right:none;border-bottom:1px solid var(--line);}
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .section{padding:52px 0;}
  .section-head h2{font-size:23px;}
  .article-content{padding:24px 20px;}
  .contact-grid{grid-template-columns:1fr;}
  .article-list .post{flex-direction:column;gap:8px;}
  .post .post-date{flex-direction:row;border-right:none;border-bottom:1px solid var(--line);padding:0 0 8px;width:auto;gap:8px;text-align:left;}
  .site-footer .container{grid-template-columns:1fr;}
}

/* 打印优化 */
@media print{
  .site-header,.site-footer,.to-top,.cta-band{display:none;}
  body{font-size:12px;}
}