/* ===== 精捷技术官网 公共样式（2026-10-21 多页面重构） ===== */
:root{
  --nav:#0c71c3;         /* 导航深蓝 */
  --nav2:#0a4a86;
  --brand:#0F709E;       /* 标题蓝绿 */
  --accent:#1978e0;      /* hover 亮蓝 */
  --ink:#333333;
  --ink2:#666666;
  --bg:#e3e3e3;
  --light:#f6f8fb;
  --line:#e3e3e3;
  --ok:#1c7a54;
  --warn:#b0791a;
  --white:#ffffff;
  --radius:10px;
  --shadow:0 3px 12px rgba(12,113,195,.12);
  --font:"Microsoft YaHei","PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
.container{max-width:1160px;margin:0 auto;padding:0 20px}

/* ===== 顶部导航 ===== */
.site-nav{position:fixed;top:0;left:0;right:0;z-index:100;background:var(--nav);box-shadow:0 2px 8px rgba(10,74,134,.25)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;flex-shrink:0}
.brand .logo{width:40px;height:40px;border-radius:6px;display:flex;align-items:center;justify-content:center;overflow:hidden;flex-shrink:0}
.brand .logo img{width:100%;height:100%;object-fit:cover}
.brand b{font-size:17px;letter-spacing:.04em;line-height:1.2;display:block}
.brand small{font-size:10px;color:rgba(255,255,255,.72);letter-spacing:.1em;display:block;margin-top:1px}
.nav-links{display:flex;align-items:center;gap:20px}
.nav-links a{color:rgba(255,255,255,.92);font-size:14px;white-space:nowrap;transition:color .15s}
.nav-links a:hover{color:#fff;text-decoration:underline}
.nav-links .staff-login{background:#fff;color:var(--nav);font-weight:700;border-radius:999px;padding:7px 18px;margin-left:4px;transition:background .15s,color .15s}
.nav-links .staff-login:hover{background:var(--accent);color:#fff;text-decoration:none}
.nav-toggle{display:none;width:42px;height:42px;border:0;background:transparent;cursor:pointer}
.nav-toggle span{display:block;width:22px;height:2px;background:#fff;margin:5px auto;border-radius:2px}

/* ===== 内页横幅 ===== */
.page-banner{background:var(--white);padding:74px 0 0}
.page-banner .banner-wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.page-banner img{width:100%;height:auto;border-radius:10px;box-shadow:var(--shadow)}
.page-head{max-width:1160px;margin:0 auto;padding:26px 20px 0}
.page-head h1{font-size:30px;color:var(--nav);font-weight:700;letter-spacing:.02em}
.page-head p{color:var(--ink2);font-size:15px;margin-top:8px}

/* ===== 首页整页宽横幅 hero（图字分离：图片全宽展示，文字在下方深蓝条） ===== */
.home-hero{padding-top:60px;background:var(--nav)}
.home-hero .hero-bg-wrap{background:var(--nav)}
.home-hero .hero-bg{width:100%;height:380px;object-fit:cover;display:block}
.home-hero .hero-bar{background:linear-gradient(180deg,var(--nav) 0%,var(--nav2) 100%);padding:34px 0 46px;color:#fff}
.home-hero h1{font-size:30px;font-weight:700;letter-spacing:.02em;line-height:1.4}
.home-hero p{color:rgba(255,255,255,.94);font-size:15px;margin-top:12px;max-width:680px}
.home-hero .btns{margin-top:22px}

/* ===== 通用区块 ===== */
section{padding:52px 0}
.sec-head{margin-bottom:34px}
.sec-head .en{font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--brand);margin-bottom:6px}
.sec-head h2{font-size:26px;color:var(--nav);font-weight:700;letter-spacing:.02em}
.sec-head p{color:var(--ink2);font-size:15px;margin-top:10px;max-width:760px}
.white-sec{background:var(--white)}
.gray-sec{background:var(--light)}
.lead{font-size:15px;color:var(--ink2);max-width:860px}
.lead b{color:var(--ink)}

/* ===== 服务卡片 ===== */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--white);border:1px solid var(--line);border-top:4px solid var(--nav);border-radius:var(--radius);padding:24px 20px;box-shadow:var(--shadow);transition:transform .15s}
.card:hover{transform:translateY(-4px)}
.card .ico{width:46px;height:46px;border-radius:9px;background:var(--light);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.card .ico svg{width:24px;height:24px;stroke:var(--nav)}
.card h3{font-size:16.5px;color:var(--nav);margin-bottom:8px;font-weight:700}
.card p{font-size:13.5px;color:var(--ink2);line-height:1.7}
.card .more{display:inline-flex;align-items:center;gap:5px;margin-top:12px;font-size:13px;color:var(--brand);font-weight:600}
.card .more svg{width:14px;height:14px;stroke:var(--brand);transition:transform .15s}
.card:hover .more svg{transform:translateX(3px)}

/* ===== 详情区块（概述/服务内容/交付成果/服务模式/适合企业/常见疑问） ===== */
.doc-section{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:18px;overflow:hidden}
.doc-section details{display:block}
.doc-section summary{list-style:none;cursor:pointer;padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.doc-section summary::-webkit-details-marker{display:none}
.doc-section summary h3{font-size:17px;color:var(--nav);font-weight:700}
.doc-section summary .tag{font-size:12px;color:var(--brand);background:var(--light);border:1px solid var(--line);border-radius:999px;padding:3px 12px;white-space:nowrap}
.doc-section summary .arr{width:26px;height:26px;border-radius:50%;border:1px solid var(--nav);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:transform .2s}
.doc-section summary .arr svg{width:14px;height:14px;stroke:var(--nav)}
.doc-section details[open] summary .arr{transform:rotate(180deg)}
.doc-body{padding:0 24px 24px;border-top:1px dashed var(--line)}
.doc-body .desc{font-size:14px;color:var(--ink2);line-height:1.85;padding:16px 0 4px}
.dl{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;margin-top:14px}
.dl .item{font-size:13.5px;color:var(--ink2);padding:7px 0 7px 20px;position:relative;line-height:1.7}
.dl .item::before{content:"";position:absolute;left:4px;top:16px;width:7px;height:7px;border-radius:50%;background:var(--brand)}
.doc-sub{border-top:1px solid var(--line);margin-top:16px;padding-top:14px}
.doc-sub h4{font-size:14px;color:var(--nav);font-weight:700;margin:12px 0 6px;display:flex;align-items:center;gap:7px}
.doc-sub h4 svg{width:16px;height:16px;stroke:var(--brand);flex-shrink:0}
.doc-sub p,.doc-sub li{font-size:13.5px;color:var(--ink2);line-height:1.75}
.doc-sub ol,.doc-sub ul{padding-left:4px}
.doc-sub ol li{list-style:decimal;margin-left:20px;padding:3px 0}
.doc-sub ul li{padding-left:16px;position:relative}
.doc-sub ul li::before{content:"";position:absolute;left:2px;top:10px;width:6px;height:6px;border-radius:50%;background:var(--brand)}
.doc-sub .tag-line{font-size:12.5px;color:var(--brand);background:var(--light);border-radius:6px;padding:8px 12px;display:inline-block}

/* ===== 一体化方案 ===== */
.sol-hero{background:linear-gradient(135deg,var(--nav) 0%,var(--nav2) 100%);color:#fff}
.sol-hero .container{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center}
.sol-hero h2{font-size:28px;line-height:1.4}
.sol-hero p{color:rgba(255,255,255,.88);font-size:14.5px;margin-top:14px;line-height:1.85}
.sol-mods{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.sol-mod{background:var(--white);border:1px solid var(--line);border-top:4px solid var(--nav);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.sol-mod h4{font-size:15.5px;color:var(--nav);margin-bottom:10px;font-weight:700}
.sol-mod li{font-size:13px;color:var(--ink2);padding:4px 0 4px 16px;position:relative}
.sol-mod li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand)}
.benefits{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.benefits li{display:flex;gap:9px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:8px;padding:12px 14px;font-size:13.5px;color:var(--ink)}
.benefits svg{width:18px;height:18px;stroke:var(--ok);flex-shrink:0;margin-top:2px}

/* ===== 流程 ===== */
.timeline{max-width:860px;margin:0 auto;position:relative;--date:96px;--axis:44px;--gap:20px;display:grid;grid-template-columns:var(--date) var(--axis) 1fr;gap:0 var(--gap)}
.timeline::before{content:"";position:absolute;left:calc(var(--date) + var(--gap) + var(--axis)/2 - 1px);top:16px;bottom:44px;width:2px;background:var(--line)}
.tl-item{grid-column:1/-1;display:grid;grid-template-columns:var(--date) var(--axis) 1fr;column-gap:var(--gap)}
.tl-time{padding-top:4px;text-align:right;color:var(--brand);font-weight:700;font-size:14px;white-space:nowrap}
.tl-dot{position:relative;z-index:1;width:20px;height:20px;border-radius:50%;background:var(--nav);border:5px solid var(--white);box-shadow:0 0 0 2px var(--nav);justify-self:center;margin-top:6px}
.tl-body{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin-bottom:28px}
.tl-body h3{font-size:15.5px;color:var(--nav);margin-bottom:4px}
.tl-body p{font-size:13.5px;color:var(--ink2)}

/* ===== 案例 ===== */
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);margin-bottom:20px}
.case-card h3{font-size:17px;color:var(--nav);margin-bottom:14px}
.case-block{margin-top:14px}
.case-block h4{font-size:13.5px;color:var(--brand);font-weight:700;margin-bottom:8px}
.case-block li{font-size:13.5px;color:var(--ink2);padding:4px 0 4px 16px;position:relative}
.case-block li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--brand)}
.case-tags{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px}
.case-tags span{font-size:12px;color:var(--brand);background:var(--light);border:1px solid var(--line);border-radius:999px;padding:3px 12px}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:8px;font-size:14px;font-weight:600;padding:11px 24px;cursor:pointer;border:0;transition:transform .12s,background .15s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--nav);color:#fff}
.btn-primary:hover{background:var(--accent)}
.btn-ghost{background:transparent;color:var(--nav);border:1px solid var(--nav)}
.btn-ghost:hover{background:var(--nav);color:#fff}
.btn-ghost-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.75)}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btns{display:flex;flex-wrap:wrap;gap:12px}

/* ===== 表单 ===== */
.form-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px;max-width:640px}
.form-panel h3{font-size:17px;color:var(--nav);margin-bottom:6px}
.form-panel .fdesc{font-size:13px;color:var(--ink2);margin-bottom:18px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:13px;color:var(--ink);margin-bottom:6px;font-weight:600}
.form-group input,.form-group select,.form-group textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:16px;font-family:inherit;color:var(--ink);background:#fff;outline:none;transition:border-color .15s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--nav)}
.form-group textarea{min-height:96px;resize:vertical}

/* ===== 页脚 ===== */
footer{background:var(--nav2);color:rgba(255,255,255,.75);padding:26px 0 20px;font-size:12.5px}
.foot-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:22px;margin-bottom:16px}
.foot-grid h4{color:#fff;font-size:14px;margin-bottom:10px}
.foot-grid p{line-height:1.8}
.foot-grid a:hover{color:#fff;text-decoration:underline}
.foot-inner{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:space-between;border-top:1px solid rgba(255,255,255,.16);padding-top:14px}

/* ===== 响应式 ===== */
@media (max-width:900px){
  .nav-links{position:fixed;top:60px;left:0;right:0;background:var(--nav);flex-direction:column;align-items:flex-start;gap:0;padding:0 20px;display:none;box-shadow:0 12px 24px rgba(0,0,0,.25);max-height:calc(100vh - 60px);overflow:auto}
  .nav-links.open{display:flex}
  .nav-links a{width:100%;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:15px}
  .nav-links .staff-login{width:auto;align-self:flex-start;margin:14px 0 12px;padding:10px 22px}
  .nav-toggle{display:block}
  .cards{grid-template-columns:1fr;gap:14px}
  .dl{grid-template-columns:1fr}
  .sol-hero .container{grid-template-columns:1fr;gap:18px}
  .sol-mods{grid-template-columns:1fr;gap:14px}
  .benefits{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .timeline{--date:80px;--axis:36px;--gap:20px}
  section{padding:44px 0}
  .sec-head h2{font-size:22px}
  .page-head h1{font-size:24px}
  .home-hero .hero-bg{height:260px}
  .home-hero h1{font-size:22px}
  .home-hero p{font-size:13.5px}
}
@media (max-width:480px){
  .brand b{font-size:15px}
  .brand small{font-size:9px}
  .doc-section summary{padding:16px 16px}
  .doc-body{padding:0 16px 18px}
}