/* ============================================================
   Jingcheng Mold — global stylesheet
   Design tokens follow docs/建站开发方案.md §7
   ============================================================ */
:root{
  --color-primary:#0E2E4A;
  --color-primary-dark:#09223A;
  --color-secondary:#1B6FA8;
  --color-accent:#F2A33C;
  --color-bg:#F5F7FA;
  --color-surface:#FFFFFF;
  --color-text:#1F2933;
  --color-muted:#5B6B7B;
  --color-border:#DDE3EA;
  --font-sans:"Inter","Helvetica Neue",Arial,"Noto Sans","Microsoft YaHei",sans-serif;
  --fs-h1:clamp(2rem,3.6vw,3.15rem);
  --fs-h2:clamp(1.5rem,2.4vw,2.15rem);
  --fs-h3:1.125rem;
  --fs-body:17px;
  --fs-sm:15px;
  --space-1:8px;
  --space-2:16px;
  --space-3:24px;
  --space-4:40px;
  --space-5:64px;
  --space-6:96px;
  --radius-sm:4px;
  --radius-md:8px;
  --shadow-card:0 1px 2px rgba(15,32,48,.06),0 10px 26px rgba(15,32,48,.07);
  --container:1180px;
  --header-h:76px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font-sans);font-size:var(--fs-body);line-height:1.7;color:var(--color-text);background:var(--color-surface);-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:var(--color-secondary);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{margin:0 0 var(--space-2);line-height:1.22;color:var(--color-primary);font-weight:700;letter-spacing:-.01em}
h1{font-size:var(--fs-h1)}
h2{font-size:var(--fs-h2)}
p{margin:0 0 var(--space-2)}
ul,ol{margin:0 0 var(--space-2);padding-left:1.2em}
.wrap{width:100%;max-width:var(--container);margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}
.section{padding:var(--space-6) 0}
.section--alt{background:var(--color-bg)}
.section-head{max-width:760px;margin-bottom:var(--space-4)}
.eyebrow{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--color-secondary);font-weight:600;margin:0 0 var(--space-2)}
.section-head p{color:var(--color-muted);margin:0}
.num{font-variant-numeric:tabular-nums}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:var(--radius-sm);font-weight:600;font-size:16px;border:1px solid transparent;cursor:pointer;transition:background-color .18s,color .18s,border-color .18s;text-decoration:none}
.btn:hover{text-decoration:none}
.btn--accent{background:var(--color-accent);color:#20160A;border-color:var(--color-accent)}
.btn--accent:hover{background:#DB8E28;border-color:#DB8E28}
.btn--primary{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}
.btn--primary:hover{background:var(--color-primary-dark);border-color:var(--color-primary-dark)}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn--ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn--outline{background:transparent;color:var(--color-primary);border-color:var(--color-border)}
.btn--outline:hover{border-color:var(--color-primary)}
/* header */
.site-head{position:sticky;top:0;z-index:100;background:var(--color-surface);border-bottom:1px solid var(--color-border)}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);min-height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;color:var(--color-primary);text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:var(--radius-sm);background:var(--color-primary);color:#fff;font-weight:700;font-size:14px;letter-spacing:.02em;display:flex;align-items:center;justify-content:center}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-txt strong{font-size:17px;letter-spacing:-.01em}
.brand-txt em{font-style:normal;font-size:11px;color:var(--color-muted);letter-spacing:.02em}
.nav-list{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.nav-item{position:relative;display:flex;align-items:center}
.nav-link{display:block;padding:10px 12px;font-size:15px;font-weight:500;color:var(--color-text);border-radius:var(--radius-sm);text-decoration:none;white-space:nowrap}
.nav-link:hover{color:var(--color-primary);text-decoration:none;background:var(--color-bg)}
.nav-link[aria-current="page"]{color:var(--color-primary);font-weight:600}
.caret{display:none;align-items:center;justify-content:center;width:26px;height:30px;padding:0;border:0;background:transparent;color:var(--color-muted);cursor:pointer}
.caret svg{width:11px;height:11px;transition:transform .18s}
.nav-item.open>.caret svg{transform:rotate(180deg)}
.sub{position:absolute;top:calc(100% + 12px);left:-6px;min-width:250px;margin:0;padding:8px;list-style:none;background:var(--color-surface);border:1px solid var(--color-border);border-top:2px solid var(--color-primary);border-radius:var(--radius-md);box-shadow:var(--shadow-card);display:none;z-index:60}
.sub a{display:block;padding:9px 12px;border-radius:var(--radius-sm);font-size:15px;color:var(--color-text)}
.sub a:hover{background:var(--color-bg);color:var(--color-primary);text-decoration:none}
.nav-toggle{display:none;width:42px;height:42px;align-items:center;justify-content:center;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-primary);cursor:pointer}
.nav-toggle svg{width:20px;height:20px}
.head-cta{display:inline-flex}

/* === siteforge:inner-page-scaffold:begin style=banner_image === */
/* banner_image: 栏目页设 --page-hero-image:url(...)；详情页可用 --slim */
.page-hero {
  position: relative;
  padding: calc(var(--header-h, 72px) + 48px) 0 56px;
  color: var(--color-on-dark, #e8eef4);
  background:
    linear-gradient(135deg, var(--color-primary, #1b3a6b) 0%, color-mix(in srgb, var(--color-primary, #1b3a6b) 78%, #000) 100%),
    var(--page-hero-image, none) center / cover no-repeat;
  background-blend-mode: overlay, normal;
}
.page-hero h1 { color: #fff; margin: 0 0 14px; font-size: 2.2rem; line-height: 1.2; }
.page-hero .eyebrow { margin-bottom: 10px; color: var(--color-accent, #f59e0b); }
.page-hero p.lead,
.page-hero .lead { color: var(--color-on-dark-muted, #c7d6e9); max-width: 40rem; margin: 0; }
.page-hero--slim { padding: calc(var(--header-h, 72px) + 36px) 0 40px; }
.page-hero--slim h1 { font-size: 1.9rem; }
.page-hero--full { padding: calc(var(--header-h, 72px) + 72px) 0 80px; min-height: 42vh; }
.page-hero--full h1 { font-size: 2.5rem; }

.breadcrumb { margin: 0 0 18px; font-size: 0.9rem; }
.breadcrumb ol {
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
  list-style: none; margin: 0; padding: 0;
}
.breadcrumb li { display: flex; align-items: center; gap: 8px; }
.breadcrumb li + li::before { content: "/"; color: rgba(255,255,255,.35); }
.breadcrumb a { color: var(--color-on-dark-muted, #c7d6e9); }
.breadcrumb a:hover { color: var(--color-accent, #f59e0b); text-decoration: none; }
.breadcrumb [aria-current="page"] { color: #fff; font-weight: 600; }

.table-wrap { overflow-x: auto; margin: 1.25rem 0; }
.spec-table {
  width: 100%; border-collapse: collapse; font-size: 0.95rem;
  background: var(--color-surface, #fff);
}
.spec-table th, .spec-table td {
  border: 1px solid var(--color-border, #e3e8ee);
  padding: 0.65rem 0.85rem; text-align: left; vertical-align: top;
}
.spec-table th { background: color-mix(in srgb, var(--color-primary, #1b3a6b) 8%, #fff); color: var(--color-primary, #1b3a6b); }

@media (max-width: 768px) {
  .page-hero h1 { font-size: 1.7rem; }
  .page-hero--slim h1 { font-size: 1.55rem; }
  .page-hero--full h1 { font-size: 1.85rem; }
}
/* === siteforge:inner-page-scaffold:end === */

@media (min-width:1024px){
  .nav-item.has-sub:hover>.sub,.nav-item.has-sub:focus-within>.sub{display:block}
}
/* hero */
.hero{position:relative;isolation:isolate;color:#fff;padding:clamp(64px,9vw,124px) 0 clamp(56px,7vw,104px);overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:-2;background-size:cover;background-position:center}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(9,34,58,.94) 0%,rgba(9,34,58,.82) 46%,rgba(14,46,74,.55) 100%)}
.hero h1{color:#fff;max-width:19em;margin-bottom:var(--space-3)}
.hero .eyebrow{color:#9FC6E4}
.hero-lead{max-width:44em;color:#DCE6EF;font-size:18px;margin-bottom:var(--space-4)}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
/* metrics */
.metrics{background:var(--color-primary);color:#fff;padding:var(--space-4) 0}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-3)}
.metric{border-left:2px solid rgba(255,255,255,.18);padding-left:var(--space-3)}
.metric:first-child{border-left:0;padding-left:0}
.metric strong{display:block;font-size:clamp(1.5rem,2.4vw,2rem);color:#fff;font-variant-numeric:tabular-nums;line-height:1.1}
.metric span{display:block;font-size:14px;color:#B7CBDC;margin-top:6px}
/* card grids */
.grid{display:grid;gap:var(--space-3)}
.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(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-3);display:flex;flex-direction:column}
.card h3{margin-bottom:10px;font-size:var(--fs-h3)}
.card p{color:var(--color-muted);font-size:15.5px;margin-bottom:var(--space-2)}
.card .card-link{margin-top:auto;font-weight:600;font-size:15px}
.card--media{padding:0;overflow:hidden}
.card--media img{width:100%;aspect-ratio:3/2;object-fit:cover}
.card--media .card-body{padding:var(--space-3)}
.tag{display:inline-block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--color-secondary);font-weight:600;margin-bottom:8px}
/* process timeline */
.steps{list-style:none;margin:0;padding:0;counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-3)}
.steps li{position:relative;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-3) var(--space-3) var(--space-3) var(--space-3);counter-increment:step}
.steps li::before{content:counter(step,decimal-leading-zero);display:block;font-size:13px;font-weight:700;color:var(--color-accent);font-variant-numeric:tabular-nums;margin-bottom:8px}
.steps strong{display:block;color:var(--color-primary);font-size:16px;margin-bottom:4px}
.steps span{display:block;font-size:14px;color:var(--color-muted);font-variant-numeric:tabular-nums}
.steps-note{margin-top:var(--space-3);font-size:14px;color:var(--color-muted)}
/* evidence list */
.evidence{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-2)}
.evidence li{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-3)}
.evidence strong{display:block;color:var(--color-primary);font-size:15.5px;margin-bottom:4px}
.evidence span{font-size:14px;color:var(--color-muted)}
/* industries */
.ind{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-2)}
.ind div{background:var(--color-surface);border:1px solid var(--color-border);border-left:3px solid var(--color-secondary);border-radius:var(--radius-sm);padding:var(--space-3)}
.ind strong{display:block;color:var(--color-primary);margin-bottom:4px}
.ind span{font-size:14px;color:var(--color-muted)}
/* case */
.case{display:grid;grid-template-columns:1.05fr 1fr;gap:0;border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;background:var(--color-surface)}
.case img{width:100%;height:100%;object-fit:cover;min-height:260px}
.case-body{padding:var(--space-4)}
.case-body h3{font-size:1.2rem}
.case-facts{list-style:none;margin:0 0 var(--space-2);padding:0;font-size:15px}
.case-facts li{padding:7px 0;border-bottom:1px dashed var(--color-border);display:flex;gap:10px}
.case-facts li:last-child{border-bottom:0}
.case-facts b{flex:0 0 88px;color:var(--color-primary);font-weight:600}
/* faq */
.faq{display:grid;gap:10px;max-width:920px}
.faq details{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:0}
.faq summary{cursor:pointer;padding:16px 20px;font-weight:600;color:var(--color-primary);list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;color:var(--color-accent);line-height:1;flex:0 0 auto}
.faq details[open] summary::after{content:"–"}
.faq .faq-a{padding:0 20px 18px;color:var(--color-muted);font-size:15.5px}
/* quote form */
.quote{background:var(--color-primary);color:#fff;padding:var(--space-6) 0}
.quote h2{color:#fff}
.quote-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:var(--space-5);align-items:start}
.quote p{color:#C8D8E6}
.quote-list{list-style:none;margin:0;padding:0;font-size:15px;color:#C8D8E6}
.quote-list li{padding:7px 0 7px 24px;position:relative}
.quote-list li::before{content:"";position:absolute;left:0;top:15px;width:9px;height:9px;background:var(--color-accent);border-radius:2px}
.qform{background:var(--color-surface);border-radius:var(--radius-md);padding:var(--space-4);color:var(--color-text)}
.qform .row{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-2)}
.field{display:flex;flex-direction:column;margin-bottom:var(--space-2)}
.field label{font-size:13.5px;font-weight:600;color:var(--color-primary);margin-bottom:6px}
.field input,.field select,.field textarea{font-family:inherit;font-size:15.5px;color:var(--color-text);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:10px 12px;background:#fff;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--color-secondary);outline-offset:1px;border-color:var(--color-secondary)}
.field textarea{resize:vertical;min-height:96px}
.qform .btn{width:100%;margin-top:6px}
.form-note{font-size:14px;color:var(--color-muted);margin:12px 0 0}
.form-status{margin-top:12px;font-size:15px;font-weight:600;color:#146B3A;display:none}
.form-status.is-on{display:block}
/* footer */
.site-foot{background:var(--color-primary-dark);color:#B7CBDC;padding:var(--space-5) 0 var(--space-3);font-size:15px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:var(--space-4)}
.site-foot h4{color:#fff;font-size:14px;letter-spacing:.08em;text-transform:uppercase;margin:0 0 var(--space-2)}
.site-foot a{color:#B7CBDC}
.site-foot a:hover{color:#fff}
.site-foot ul{list-style:none;margin:0;padding:0}
.site-foot li{margin-bottom:8px}
.foot-brand strong{display:block;color:#fff;font-size:16px;margin-bottom:6px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:var(--space-4);padding-top:var(--space-3);display:flex;justify-content:space-between;gap:var(--space-2);font-size:13.5px;color:#8FA6BA}
/* responsive */
@media (max-width:1023px){
  .nav{position:fixed;left:0;right:0;top:var(--header-h);bottom:0;background:var(--color-surface);border-top:1px solid var(--color-border);padding:14px 20px 32px;overflow-y:auto;transform:translateX(100%);transition:transform .24s ease;display:block}
  .nav.is-open{transform:translateX(0)}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item{justify-content:space-between;border-bottom:1px solid var(--color-border);flex-wrap:wrap}
  .nav-link{font-size:16px;padding:14px 0;flex:1 1 auto}
  .nav-link:hover{background:transparent}
  .caret{display:inline-flex}
  .sub{position:static;display:none;width:100%;min-width:0;box-shadow:none;border:0;border-radius:0;border-left:2px solid var(--color-border);margin:0 0 10px 2px;padding:0 0 0 12px;background:transparent}
  .nav-item.open>.sub{display:block}
  .nav-toggle{display:inline-flex}
  .head-cta{display:none}
  .grid--3,.grid--4,.steps,.evidence,.ind,.grid--2{grid-template-columns:repeat(2,1fr)}
  .case{grid-template-columns:1fr}
  .case img{min-height:220px;aspect-ratio:3/2}
  .quote-grid{grid-template-columns:1fr;gap:var(--space-4)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .section{padding:var(--space-5) 0}
  body.nav-open{overflow:hidden}
}
@media (max-width:700px){
  .metrics-grid{grid-template-columns:1fr 1fr;gap:var(--space-2)}
  .metric{border-left:0;padding-left:0}
  .grid--3,.grid--4,.steps,.evidence,.ind,.grid--2{grid-template-columns:1fr}
  .qform .row{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column}
  .hero-cta .btn{width:100%}
}