/* 广东广通汽车救援有限公司 · 官方网站样式
   设计目标：服务型、可读性强、移动端友好、无障碍、不依赖外部字体/CDN */
:root{
  --navy:#0f2b4c; --navy-2:#163a63; --orange:#f26b21; --orange-d:#d8590f;
  --ink:#1b2b3d; --muted:#5a6a7d; --line:#dde5ee; --bg:#f5f7fa;
  --white:#fff; --soft:#eef4fa; --ok:#187a5a; --radius:12px;
  --shadow:0 6px 22px rgba(15,43,76,.08); --maxw:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",Arial,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:var(--navy-2);text-decoration:none}
a:hover{color:var(--orange)}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{line-height:1.35;color:var(--navy);margin:0 0 .6em;font-weight:700}
h1{font-size:2.1rem} h2{font-size:1.55rem} h3{font-size:1.16rem}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.3em}
li{margin:.35em 0}
:focus-visible{outline:3px solid var(--orange);outline-offset:2px}
.skip{position:absolute;left:-9999px;top:0;background:var(--navy);color:#fff;padding:10px 16px;z-index:99}
.skip:focus{left:8px;top:8px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------- Header ---------- */
.site-head{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40}
.head-in{max-width:var(--maxw);margin:0 auto;padding:10px 20px;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand img{width:158px;height:auto}
.brand-txt{display:none;font-weight:700;color:var(--navy);font-size:1.05rem}
.nav{display:flex;flex-wrap:wrap;gap:2px;margin-left:auto;align-items:center}
.nav a{padding:7px 11px;border-radius:8px;font-size:.94rem;color:var(--ink);white-space:nowrap}
.nav a:hover,.nav a[aria-current="page"]{background:var(--soft);color:var(--navy)}
.tel-btn{display:inline-flex;align-items:center;gap:8px;background:var(--orange);color:#fff!important;
  padding:10px 16px;border-radius:999px;font-weight:700;font-size:.95rem;white-space:nowrap;
  box-shadow:0 3px 10px rgba(242,107,33,.25)}
.tel-btn:hover{background:var(--orange-d)}
.tel-btn svg{width:16px;height:16px;fill:currentColor}
.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;
  padding:7px 11px;font-size:1rem;cursor:pointer;color:var(--navy)}

/* ---------- Hero ---------- */
.hero{position:relative;background:linear-gradient(115deg,#0d2543 0%,#174274 62%,#1c4a7d 100%);
  color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-size:cover;background-position:center right;
  opacity:.18;background-image:var(--hero-img,none)}
.hero-in{position:relative;max-width:var(--maxw);margin:0 auto;padding:52px 20px 46px;
  display:grid;grid-template-columns:1.25fr .85fr;gap:36px;align-items:center}
.hero h1{color:#fff;font-size:2.35rem;letter-spacing:.4px}
.hero .lead{font-size:1.06rem;color:#dce9f6;max-width:40em}
.hero .kicker{display:inline-block;background:rgba(242,107,33,.18);border:1px solid rgba(242,107,33,.55);
  color:#ffd7bd;padding:4px 13px;border-radius:999px;font-size:.85rem;margin-bottom:16px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;
  border-radius:9px;font-weight:700;font-size:1rem;border:1px solid transparent;cursor:pointer}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-d);color:#fff}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08)}
.hero-note{font-size:.87rem;color:#b9cfe4;margin-top:12px}
.facts{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.22);
  border-radius:var(--radius);padding:20px 22px;backdrop-filter:blur(3px)}
.facts h2{color:#fff;font-size:1.05rem;margin:0 0 14px}
.facts dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:9px 14px;font-size:.95rem}
.facts dt{color:#9fc0e0} .facts dd{margin:0;color:#fff;font-weight:600}

/* ---------- Sections ---------- */
section{padding:42px 0}
section.alt{background:#fff}
.sec-head{margin-bottom:24px}
.sec-head .tag{color:var(--orange);font-size:.85rem;font-weight:700;letter-spacing:1px}
.sec-head p{color:var(--muted);max-width:62em;margin:0}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,1fr)} .g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;
  box-shadow:0 2px 10px rgba(15,43,76,.04)}
.card h3{margin:0 0 8px;font-size:1.06rem}
.card p{color:var(--muted);font-size:.94rem;margin:0 0 12px}
.card .more{font-size:.9rem;font-weight:700}
.card .num{display:inline-flex;width:30px;height:30px;align-items:center;justify-content:center;
  background:var(--soft);color:var(--navy);border-radius:8px;font-weight:700;font-size:.9rem;margin-bottom:10px}
.card:hover{border-color:#b9cbe0;box-shadow:var(--shadow)}
.pill{display:inline-block;background:var(--soft);color:var(--navy-2);border:1px solid var(--line);
  border-radius:999px;padding:3px 11px;font-size:.85rem;margin:0 6px 6px 0}
.pill:hover{background:#e2eefb}

/* ---------- Breadcrumb / article ---------- */
.crumbs{font-size:.88rem;color:var(--muted);padding:14px 0 0}
.crumbs a{color:var(--muted)} .crumbs a:hover{color:var(--orange)}
.crumbs span{margin:0 6px;color:#a9b7c6}
.page-head{background:#fff;border-bottom:1px solid var(--line);padding:26px 0 24px}
.page-head h1{margin:0 0 8px;font-size:1.85rem}
.page-head .desc{color:var(--muted);max-width:64em;margin:0}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:28px;padding-top:30px;padding-bottom:44px}
.article{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;min-width:0}
.article h2{margin-top:1.7em;font-size:1.3rem;border-left:4px solid var(--orange);padding-left:12px}
.article h3{font-size:1.05rem;margin-top:1.3em}
.article img{border-radius:9px;margin:16px auto;border:1px solid var(--line)}
.article table{width:100%;border-collapse:collapse;margin:14px 0 20px;font-size:.94rem}
.article th,.article td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
.article th{background:var(--soft);color:var(--navy);white-space:nowrap}
.article blockquote{border-left:4px solid var(--orange);background:var(--soft);margin:16px 0;padding:12px 16px;color:var(--ink)}
.article ul li{color:var(--ink)}
.side{position:sticky;top:86px;align-self:start}
.side .box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:16px}
.side h3{font-size:1rem;margin:0 0 12px}
.side ul{list-style:none;padding:0;margin:0}
.side li{margin:0;border-bottom:1px dashed var(--line);padding:7px 0;font-size:.91rem}
.side li:last-child{border-bottom:0}
.callout{background:#fff7f1;border:1px solid #f6cdb0;border-radius:var(--radius);padding:16px 18px;margin:20px 0}
.callout strong{color:var(--orange-d)}

/* ---------- FAQ ---------- */
details{background:#fff;border:1px solid var(--line);border-radius:9px;margin-bottom:10px;padding:0 16px}
summary{cursor:pointer;padding:13px 2px;font-weight:600;color:var(--navy);list-style:none}
summary::-webkit-details-marker{display:none}
summary::before{content:"+";display:inline-block;width:20px;color:var(--orange);font-weight:700}
details[open] summary::before{content:"−"}
details .a{padding:0 2px 15px 22px;color:var(--muted);font-size:.95rem}

/* ---------- Steps ---------- */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 14px;position:relative}
.step::before{counter-increment:s;content:counter(s);position:absolute;top:-11px;left:14px;
  width:26px;height:26px;border-radius:50%;background:var(--orange);color:#fff;
  display:grid;place-items:center;font-size:.85rem;font-weight:700}
.step h3{margin:14px 0 6px;font-size:1rem}
.step p{font-size:.88rem;color:var(--muted);margin:0}

/* ---------- Trust / NAP ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.trust{border-left:3px solid var(--ok);background:#fff;padding:16px 18px;border-radius:0 var(--radius) var(--radius) 0;
  border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust h3{font-size:1rem;margin:0 0 6px}
.trust p{font-size:.9rem;color:var(--muted);margin:0}
.nap{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.nap .row{background:#fff;border:1px solid var(--line);border-radius:9px;padding:14px 16px}
.nap .k{font-size:.83rem;color:var(--muted);display:block;margin-bottom:3px}
.nap .v{font-weight:700;color:var(--navy);font-size:1.02rem;word-break:break-all}
.nap a.v{color:var(--orange-d)}

/* ---------- Footer ---------- */
.site-foot{background:var(--navy);color:#c9d9ea;padding:40px 0 22px;margin-top:20px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:26px}
.site-foot h3{color:#fff;font-size:1rem;margin:0 0 12px}
.site-foot a{color:#c9d9ea;font-size:.9rem;display:block;padding:3px 0}
.site-foot a:hover{color:#ffb98a}
.site-foot p{font-size:.9rem;color:#a9c0d8;margin:0 0 10px}
.foot-nap{border-top:1px solid rgba(255,255,255,.16);margin-top:26px;padding-top:18px;
  display:flex;flex-wrap:wrap;gap:16px 30px;font-size:.88rem;color:#a9c0d8}
.foot-nap strong{color:#fff}
.foot-btm{border-top:1px solid rgba(255,255,255,.12);margin-top:18px;padding-top:14px;
  font-size:.83rem;color:#8fa9c3;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between}
.mobile-bar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:50;background:#fff;
  border-top:1px solid var(--line);box-shadow:0 -4px 16px rgba(15,43,76,.1);padding:9px 14px;
  grid-template-columns:1fr 1fr;gap:10px}
.mobile-bar a{padding:11px 8px;border-radius:9px;text-align:center;font-weight:700;font-size:.95rem}
.mobile-bar .call{background:var(--orange);color:#fff}
.mobile-bar .home{background:var(--soft);color:var(--navy)}

/* ---------- Misc ---------- */
.notice{background:#eef4fa;border:1px solid #cfdeee;border-radius:9px;padding:12px 16px;
  font-size:.9rem;color:var(--muted);margin:16px 0}
.meta-line{font-size:.85rem;color:var(--muted);border-top:1px dashed var(--line);margin-top:26px;padding-top:12px}
.to-top{position:fixed;right:18px;bottom:78px;width:42px;height:42px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--navy);display:none;place-items:center;cursor:pointer;box-shadow:var(--shadow);font-size:1.2rem}
.to-top.show{display:grid}
.rel-list{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;font-size:.92rem}
.rel-list a{display:block;padding:9px 11px;background:var(--soft);border-radius:7px}

@media (max-width:1000px){
  .hero-in{grid-template-columns:1fr;padding:38px 20px 34px}
  .facts{max-width:560px}
  .layout{grid-template-columns:1fr}
  .side{position:static}
  .g4{grid-template-columns:repeat(2,1fr)} .g3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .foot-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:720px){
  body{font-size:15.5px}
  .head-in{flex-wrap:wrap;padding:9px 14px;gap:10px}
  .brand img{width:136px}
  .nav{display:none;width:100%;order:3;margin-left:0;flex-direction:column;align-items:stretch}
  .nav.open{display:flex}
  .nav a{padding:9px 10px;border-bottom:1px solid var(--line)}
  .menu-toggle{display:block;margin-left:auto}
  .tel-btn.head-tel{display:none}
  .hero h1{font-size:1.65rem} .hero .lead{font-size:.98rem}
  section{padding:30px 0}
  .g2,.g3,.g4,.trust-grid,.nap,.rel-list{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .article{padding:18px 16px}
  .page-head h1{font-size:1.45rem}
  .foot-grid{grid-template-columns:1fr}
  .mobile-bar{display:grid}
  body{padding-bottom:64px}
  .to-top{bottom:76px}
}
@media print{.site-head,.mobile-bar,.to-top,.site-foot{display:none}body{background:#fff}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}