/* ==========================================================================
   北京商用门维修 — 全站共用样式
   由 build.js 引用。修改这里，所有页面同步生效。
   ========================================================================== */

/* ============ 设计变量 ============ */
:root{
  --ink:#0f172a;
  --ink-2:#1e293b;
  --body:#475569;
  --muted:#94a3b8;
  --line:#e2e8f0;
  --bg:#ffffff;
  --bg-soft:#f6f8fb;
  --brand:#0b64d6;
  --brand-dk:#084a9e;
  --brand-soft:#eaf2fe;
  --ok:#0f9d58;
  --radius:14px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.06),0 1px 3px rgba(15,23,42,.05);
  --shadow:0 8px 24px rgba(15,23,42,.08);
  --shadow-lg:0 18px 50px rgba(15,23,42,.13);
  --wrap:1120px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.3;margin:0;font-weight:800;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}
.sec{padding:72px 0}
.sec--soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:680px;margin-bottom:34px}
.sec-head h2{font-size:clamp(23px,3.2vw,32px)}
.sec-head p{margin-top:12px;color:var(--body);font-size:16px}
.sec-head--center{margin-inline:auto;text-align:center}

/* ============ 顶部导航 ============ */
.header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.93);
  backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line);
}
.header .wrap{display:flex;align-items:center;gap:16px;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;white-space:nowrap}
.logo-mark{
  width:34px;height:34px;border-radius:9px;flex:none;
  background:linear-gradient(135deg,var(--brand),#2f8bf0);
  color:#fff;display:grid;place-items:center;font-size:15px;font-weight:800;
  box-shadow:0 4px 12px rgba(11,100,214,.3);
}
.logo small{font-weight:600;color:var(--muted);font-size:12.5px}
.nav{display:flex;gap:24px;margin-left:auto;font-size:15px;font-weight:600;color:var(--body)}
.nav a:hover{color:var(--brand)}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;margin-left:8px;
  background:var(--brand);color:#fff;font-weight:700;font-size:15px;
  padding:10px 18px;border-radius:999px;box-shadow:0 6px 16px rgba(11,100,214,.28);
  white-space:nowrap;
}
.header-cta:hover{background:var(--brand-dk)}
.header-cta svg{width:16px;height:16px}
@media(max-width:960px){
  .header .wrap{height:auto;flex-wrap:wrap;padding:10px 0 8px;gap:10px}
  .nav{display:flex;order:9;width:100%;margin:0;gap:20px;overflow-x:auto;font-size:14px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .nav::-webkit-scrollbar{display:none}
  .nav a{white-space:nowrap}
}

/* ============ 首屏 ============ */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(900px 480px at 78% -8%, rgba(47,139,240,.42), transparent 62%),
    radial-gradient(700px 420px at 8% 108%, rgba(15,157,88,.2), transparent 60%),
    linear-gradient(160deg,#0f172a 0%,#152744 58%,#0f172a 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(circle at 60% 30%,#000 30%,transparent 78%);
}
.hero .wrap{position:relative;z-index:2;padding-top:74px;padding-bottom:66px}
.hero-grid{display:grid;grid-template-columns:1.32fr .92fr;gap:52px;align-items:center}
@media(max-width:980px){.hero-grid{grid-template-columns:1fr;gap:36px}.hero .wrap{padding-top:48px;padding-bottom:46px}}
.hero--slim .wrap{padding-top:52px;padding-bottom:48px}
.badges{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:22px}
.badge{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;
  padding:6px 13px;border-radius:999px;color:#cfe2ff;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.17);
}
.badge i{width:6px;height:6px;border-radius:50%;background:#4ade80;flex:none;box-shadow:0 0 0 3px rgba(74,222,128,.22)}
.hero h1{font-size:clamp(29px,4.3vw,50px);letter-spacing:-.02em}
.hero--slim h1{font-size:clamp(26px,3.6vw,42px)}
.hero h1 em{font-style:normal;color:#7cb8ff}
.hero-sub{margin-top:20px;font-size:clamp(15.5px,1.6vw,18px);color:#c3d2e6;max-width:620px}
.hero-list{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;color:#dbe6f5;font-size:15px}
.hero-list span{display:flex;align-items:center;gap:8px}
.hero-list svg{width:17px;height:17px;color:#4ade80;flex:none}

/* 联系卡 */
.contact-card{
  background:rgba(255,255,255,.97);color:var(--ink);
  border-radius:20px;padding:26px;box-shadow:var(--shadow-lg);
}
.contact-card h3{font-size:19px;margin-bottom:6px}
.contact-card .hint{font-size:13.5px;color:var(--body)}
.call-btn{
  display:flex;align-items:center;justify-content:center;gap:11px;
  margin-top:18px;background:var(--brand);color:#fff;font-weight:800;
  border-radius:12px;padding:15px 18px;box-shadow:0 10px 24px rgba(11,100,214,.3);
  transition:transform .16s,background .16s;
}
.call-btn:hover{background:var(--brand-dk);transform:translateY(-1px)}
.call-btn svg{width:22px;height:22px;flex:none}
.call-btn .num{font-size:22px;letter-spacing:.5px}
.call-btn small{display:block;font-size:12px;font-weight:600;opacity:.85;letter-spacing:0}
.wechat-row{display:flex;gap:16px;margin-top:18px;align-items:center}
.qr{
  width:104px;height:104px;flex:none;border-radius:12px;border:1px solid var(--line);
  background:var(--bg-soft);display:grid;place-items:center;text-align:center;
  font-size:11.5px;color:var(--muted);padding:6px;line-height:1.4;overflow:hidden;
}
.qr img{width:100%;height:100%;object-fit:contain;border-radius:8px}
.wechat-info{font-size:14px}
.wechat-info b{display:block;font-size:15px;margin-bottom:4px}
.wechat-info .sub{color:var(--body)}
.wx-id{
  display:inline-flex;align-items:center;gap:6px;margin-top:8px;
  background:var(--bg-soft);border:1px solid var(--line);border-radius:9px;
  padding:7px 11px;font-weight:700;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:14px;cursor:pointer;color:var(--ink-2);
}
.wx-id:hover{border-color:var(--brand);color:var(--brand)}
.wx-id svg{width:14px;height:14px}
.contact-note{margin-top:14px;font-size:12.5px;color:var(--muted);line-height:1.6}

/* ============ 面包屑 ============ */
.crumb{font-size:13.5px;color:var(--muted);padding:16px 0 0}
.crumb a:hover{color:var(--brand)}
.crumb span{margin:0 6px;color:#cbd5e1}

/* ============ 服务列表（首页/区域页复用） ============ */
.svc-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media(max-width:760px){.svc-list{grid-template-columns:1fr}}
.svc{
  display:flex;gap:16px;align-items:flex-start;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;
  box-shadow:var(--shadow-sm);transition:.2s;
}
.svc:hover{border-color:#c3d6ef;box-shadow:var(--shadow);transform:translateY(-2px)}
.svc .ico{
  width:44px;height:44px;flex:none;border-radius:11px;background:var(--brand-soft);
  color:var(--brand);display:grid;place-items:center;
}
.svc .ico svg{width:23px;height:23px}
.svc h3{font-size:17px;margin-bottom:6px}
.svc p{font-size:14.3px;color:var(--body)}
.svc .more{display:inline-block;margin-top:9px;font-size:13.5px;font-weight:700;color:var(--brand)}
.svc-wide{grid-column:1/-1}
@media(max-width:760px){.svc-wide{grid-column:auto}}

/* ============ 症状清单（服务页） ============ */
.sym-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media(max-width:760px){.sym-list{grid-template-columns:1fr}}
.sym{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:12px;padding:18px 20px;box-shadow:var(--shadow-sm);
}
.sym h4{font-size:16px;margin-bottom:7px}
.sym p{font-size:14.3px;color:var(--body)}
.sym b{color:var(--brand-dk)}
.sym .fix{display:block;margin-top:8px;font-size:13.5px;color:var(--ok);font-weight:700}

/* ============ 能修 / 不建议修 两栏 ============ */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:760px){.two-col{grid-template-columns:1fr}}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm)}
.panel h3{font-size:17px;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.panel h3 svg{width:20px;height:20px;flex:none}
.panel--ok h3{color:var(--ok)}
.panel--no h3{color:#c2410c}
.panel ul{display:flex;flex-direction:column;gap:9px}
.panel li{font-size:14.4px;color:var(--body);padding-left:22px;position:relative}
.panel li::before{
  content:"";position:absolute;left:0;top:9px;width:11px;height:6px;
  border-left:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:rotate(-45deg);opacity:.55;
}
.panel li b{color:var(--ink)}

/* ============ 价格表 ============ */
.price-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow-sm)}
table{width:100%;border-collapse:collapse;min-width:600px}
th,td{padding:14px 18px;text-align:left;font-size:14.8px;border-bottom:1px solid var(--line)}
th{background:var(--bg-soft);font-weight:800;font-size:14px;color:var(--ink-2);white-space:nowrap}
td:first-child{font-weight:700}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:#fbfdff}
.price-amt{color:var(--brand);font-weight:800;white-space:nowrap}
.price-foot{margin-top:16px;font-size:14px;color:var(--body);display:flex;flex-wrap:wrap;gap:8px 22px}
.price-foot span{display:flex;gap:7px;align-items:center}
.price-foot svg{width:15px;height:15px;color:var(--ok);flex:none}
.price-note{margin-top:14px;font-size:13px;color:var(--muted)}

/* ============ 服务区域 ============ */
.area-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
@media(max-width:900px){.area-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:560px){.area-grid{grid-template-columns:repeat(2,1fr)}}
.area{
  display:block;background:#fff;border:1px solid var(--line);border-radius:10px;
  padding:13px 16px;font-size:15px;font-weight:700;text-align:center;transition:.18s;
}
.area:hover{border-color:var(--brand);color:var(--brand);box-shadow:var(--shadow-sm)}
.area-tip{
  margin-top:18px;background:var(--brand-soft);border:1px solid #cfe1fb;border-radius:12px;
  padding:16px 20px;font-size:14.3px;color:#1e3a8a;
}

/* ============ 信任承诺 ============ */
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:820px){.trust-grid{grid-template-columns:1fr}}
.trust-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm)}
.trust-item svg{width:25px;height:25px;color:var(--brand);margin-bottom:13px}
.trust-item h4{font-size:16.5px;margin-bottom:7px}
.trust-item p{font-size:14.3px;color:var(--body)}

/* ============ FAQ ============ */
.faq{max-width:840px;margin:0 auto}
.qa{border:1px solid var(--line);border-radius:12px;background:#fff;margin-bottom:12px;overflow:hidden}
.qa summary{
  list-style:none;cursor:pointer;padding:18px 54px 18px 22px;font-weight:700;font-size:16px;
  position:relative;color:var(--ink);
}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{
  content:"";position:absolute;right:22px;top:50%;width:10px;height:10px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:translateY(-70%) rotate(45deg);transition:transform .2s;
}
.qa[open] summary::after{transform:translateY(-30%) rotate(225deg)}
.qa[open] summary{background:var(--bg-soft);border-bottom:1px solid var(--line)}
.qa .ans{padding:18px 22px;font-size:14.8px;color:var(--body)}
.qa .ans b{color:var(--ink)}

/* ============ 正文排版（长文页） ============ */
.prose{max-width:820px}
.prose h2{font-size:clamp(21px,2.6vw,27px);margin-top:44px;margin-bottom:14px}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:18px;margin-top:28px;margin-bottom:10px}
.prose p{color:var(--body);font-size:15.5px;margin-bottom:14px}
.prose ul{margin-bottom:18px;display:flex;flex-direction:column;gap:9px}
.prose ul li{color:var(--body);font-size:15px;padding-left:24px;position:relative}
.prose ul li::before{
  content:"";position:absolute;left:0;top:10px;width:11px;height:6px;
  border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(-45deg);
}
.prose li b,.prose p b{color:var(--ink)}
.prose .callout{
  background:var(--brand-soft);border:1px solid #cfe1fb;border-radius:12px;
  padding:18px 22px;margin:22px 0;font-size:15px;color:#1e3a8a;
}
.prose .callout b{color:#0f2f66}

/* ============ 内链导航块 ============ */
.linkrow{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.linkrow a{
  font-size:14px;font-weight:600;color:var(--brand);background:var(--brand-soft);
  border:1px solid #cfe1fb;border-radius:999px;padding:7px 15px;transition:.16s;
}
.linkrow a:hover{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ============ 底部行动区 ============ */
.final{color:#fff;text-align:center;background:linear-gradient(135deg,#0b64d6,#084a9e)}
.final h2{font-size:clamp(23px,3.2vw,33px);color:#fff}
.final p{margin-top:14px;color:#d8e7fb;font-size:16.5px;max-width:620px;margin-inline:auto}
.final-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:30px}
.btn-white{
  display:inline-flex;align-items:center;gap:10px;background:#fff;color:var(--brand-dk);
  font-weight:800;padding:15px 30px;border-radius:999px;box-shadow:0 10px 26px rgba(0,0,0,.18);
  font-size:18px;
}
.btn-white:hover{transform:translateY(-2px)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:10px;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.4);color:#fff;font-weight:700;
  padding:15px 28px;border-radius:999px;font-size:16.5px;
}
.btn-ghost:hover{background:rgba(255,255,255,.2)}
.btn-white svg,.btn-ghost svg{width:19px;height:19px}

/* ============ 页脚 ============ */
.footer{background:#0b1220;color:#8fa2ba;font-size:14px;padding:46px 0 130px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
@media(max-width:900px){.foot-grid{grid-template-columns:1fr 1fr;gap:26px}}
@media(max-width:560px){.foot-grid{grid-template-columns:1fr;gap:22px}}
.footer h4{color:#fff;font-size:15.5px;margin-bottom:12px}
.footer a:hover{color:#7cb8ff}
.foot-links{display:flex;flex-direction:column;gap:8px}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16.5px;margin-bottom:12px}
.foot-note{margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);font-size:12.8px;color:#6d819b;line-height:1.9}
.foot-more{font-size:12.5px;color:#6d819b;line-height:1.9}

/* ============ 移动端吸底双按钮 ============ */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;display:none;gap:10px;
  padding:10px 12px calc(10px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,.97);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);box-shadow:0 -6px 22px rgba(15,23,42,.1);
}
.sticky-bar a{
  flex:1;display:flex;align-items:center;justify-content:center;gap:9px;
  font-weight:800;font-size:16px;border-radius:11px;padding:14px 10px;
}
.sticky-call{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(11,100,214,.3)}
.sticky-wx{background:#0f9d58;color:#fff}
.sticky-bar svg{width:19px;height:19px}
@media(max-width:760px){
  .sticky-bar{display:flex}
  .sec{padding:52px 0}
  .contact-card{padding:22px}
}
.toast{
  position:fixed;left:50%;bottom:96px;transform:translate(-50%,14px);
  background:var(--ink);color:#fff;font-size:14px;font-weight:600;
  padding:11px 20px;border-radius:999px;opacity:0;pointer-events:none;
  transition:.24s;z-index:99;
}
.toast.on{opacity:1;transform:translate(-50%,0)}

/* ============ 手机端价格表：横滑改为一条一张 ============ */
@media(max-width:760px){
  .price-wrap{overflow:visible;border:0;box-shadow:none;background:transparent}
  .price-wrap table{min-width:0;display:block}
  .price-wrap thead{display:none}
  .price-wrap tbody{display:block}
  .price-wrap tbody tr{
    display:block;background:#fff;border:1px solid var(--line);border-radius:11px;
    padding:13px 15px;margin-bottom:9px;box-shadow:var(--shadow-sm);
  }
  .price-wrap tbody tr:hover td{background:transparent}
  .price-wrap td{display:block;border-bottom:0;padding:1px 0;font-size:14.4px}
  .price-wrap td:first-child{font-weight:700;color:var(--ink);font-size:15.2px;margin-bottom:2px}
  .price-wrap td.price-amt{font-size:17.5px}
  .price-wrap td:nth-child(3){font-size:12.8px;color:var(--muted);line-height:1.62;margin-top:3px}
}