/* =========================================================
   惠州精准通科技有限公司 · 官网共享样式 v1（样板）
   品牌色：深蓝 #0C447C / 橙 #F0863C / 琥珀 #FAC775
   结构：topbar → header(logo+电话) → nav → 内容区 → footer
   用法：全站页面统一引用本文件，组件类见注释
   ========================================================= */

/* ---------- Reset / 基础 ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
html, body { overflow-x: hidden; max-width: 100%; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: #1E2A38;
  background: #F4F6F9;
  line-height: 1.65;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
/* 容器兜底：任何元素强制不能超过视口 */
.container { max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
h1, h2, h3, h4 { line-height: 1.3; font-weight: 700; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 15px; }

:root {
  --brand: #0C447C;
  --brand-dark: #082E55;
  --brand-deeper: #05203C;
  --accent: #F0863C;
  --accent-dark: #D85A30;
  --gold: #FAC775;
  --bg: #F4F6F9;
  --card: #FFFFFF;
  --line: #E3E8EE;
  --text: #1E2A38;
  --muted: #5C6B7A;
  --radius: 12px;
  --shadow: 0 6px 24px rgba(8, 46, 85, .08);
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px; border-radius: 8px; font-weight: 600; font-size: 15px;
  border: 1.5px solid transparent; transition: all .2s ease; white-space: nowrap;
}
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 4px 14px rgba(240, 134, 60, .35); }
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-1px); }
.btn-outline-light { border-color: rgba(255,255,255,.65); color: #fff; background: transparent; }
.btn-outline-light:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.btn-outline-brand { border-color: var(--brand); color: var(--brand); background: transparent; }
.btn-outline-brand:hover { background: var(--brand); color: #fff; }
.btn-brand { background: var(--brand); color: #fff; }
.btn-brand:hover { background: var(--brand-dark); }
.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn-lg { padding: 15px 34px; font-size: 17px; }

/* ---------- 顶部条 ---------- */
.topbar { background: var(--brand-deeper); color: rgba(255,255,255,.82); font-size: 13px; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; min-height: 34px; gap: 12px; flex-wrap: wrap; }
.topbar a:hover { color: var(--gold); }
.topbar .tb-l { display: flex; gap: 18px; flex-wrap: wrap; }
.topbar .tb-r { display: flex; gap: 14px; align-items: center; }
.topbar .dot { color: var(--accent); margin-right: 5px; }

/* ---------- Header ---------- */
.header { background: #fff; border-bottom: 1px solid var(--line); }
.header-in { display: flex; align-items: center; gap: 26px; padding: 14px 0; }
.logo { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.logo-mark {
  width: 46px; height: 46px; border-radius: 10px; background: linear-gradient(135deg, var(--brand) 0%, #145AA3 100%);
  display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 800; font-size: 19px; letter-spacing: .5px;
  box-shadow: 0 3px 8px rgba(12,68,124,.28); position: relative; flex-shrink: 0;
}
.logo-mark::after {
  content: ""; position: absolute; right: 3px; bottom: 3px; width: 9px; height: 9px;
  border-radius: 3px; background: var(--accent);
}
/* Z 板料标落地（2026-09-04 定稿 R2 · 逆时针5°） */
.logo-mark--z{width:auto;height:auto;background:none;border-radius:0;box-shadow:none;color:var(--brand);}
.logo-mark--z::after{display:none;}
.logo-mark--z svg{display:block;}
.footer .f-brand .logo-mark--z{color:#fff;}
.logo-txt b { display: block; font-size: 21px; color: var(--brand); letter-spacing: 1px; line-height: 1.15; }
.logo-txt span { font-size: 11.5px; color: var(--muted); letter-spacing: 1.6px; text-transform: uppercase; }
.logo-sub { font-size: 12.5px; color: var(--muted); border-left: 1px solid var(--line); padding-left: 20px; line-height: 1.5; display: none; }
.header-right { margin-left: auto; display: flex; align-items: center; gap: 18px; flex-shrink: 0; }
.hd-phone { text-align: right; }
.hd-phone small { display: block; font-size: 12px; color: var(--muted); }
.hd-phone a { font-size: 21px; font-weight: 800; color: var(--accent-dark); letter-spacing: .5px; }
.hd-phone a:hover { color: var(--accent); }
@media (min-width: 1200px) { .logo-sub { display: block; } }

/* ---------- 导航 ---------- */
.nav-wrap { position: sticky; top: 0; z-index: 900; background: var(--brand); box-shadow: 0 4px 14px rgba(5,32,60,.18); }
.nav { display: flex; align-items: center; }
.nav > ul { display: flex; }
.nav > ul > li { position: relative; }
.nav > ul > li > a {
  display: block; padding: 15px 19px; color: rgba(255,255,255,.92); font-weight: 500; font-size: 15px; transition: all .2s;
}
.nav > ul > li:hover > a, .nav > ul > li.active > a { background: rgba(255,255,255,.12); color: var(--gold); }
.nav .has-sub > a::after {
  content: "▾"; margin-left: 6px; font-size: 12px; opacity: .7;
}
/* v3：产品中心触发器改用 <button>（无 JS 也可 a11y 语义化），视觉与 a 一致 */
.nav .has-sub > button {
  display: block; padding: 15px 19px; color: rgba(255,255,255,.92); font-weight: 500; font-size: 15px;
  font-family: inherit; background: none; border: 0; cursor: pointer; transition: all .2s;
}
.nav .has-sub > button::after {
  content: "▾"; margin-left: 6px; font-size: 12px; opacity: .7;
}
.nav > ul > li:hover > button, .nav > ul > li.active > button { background: rgba(255,255,255,.12); color: var(--gold); }
.nav .sub {
  position: absolute; top: 100%; left: 0; min-width: 236px; background: #fff; border-radius: 0 0 10px 10px;
  box-shadow: 0 16px 32px rgba(5,32,60,.16); border: 1px solid var(--line); border-top: 3px solid var(--accent);
  opacity: 0; visibility: hidden; transform: translateY(8px); transition: all .22s ease; z-index: 950;
}
.nav > ul > li:hover .sub { opacity: 1; visibility: visible; transform: translateY(0); }
.nav .sub a { display: block; padding: 10px 18px; font-size: 14px; color: var(--text); border-bottom: 1px dashed #EDF0F4; }
.nav .sub a:hover { background: #F0F6FD; color: var(--brand); }
.nav .sub .gtitle { font-size: 12px; color: var(--accent-dark); padding: 9px 18px 3px; font-weight: 700; letter-spacing: .5px; background: #FDF6EF; border-bottom: 1px dashed #F3E0CE; }
.nav-cta { margin-left: auto; }
.nav-cta a { display: inline-block; background: var(--accent); color: #fff !important; font-weight: 600; padding: 9px 20px !important; margin: 6px 0; border-radius: 6px; font-size: 14px !important; }
.nav-cta a:hover { background: var(--accent-dark); }
.nav-toggle { display: none; background: none; border: 0; color: #fff; font-size: 26px; line-height: 1; padding: 8px 4px; }
@media (max-width: 1023px) {
  .nav-toggle { display: block; margin-left: auto; }
  .nav-cta { display: none; }
  .nav { display: block; position: fixed; top: 0; right: -78vw; width: 78vw; max-width: 340px; height: 100vh; overflow-y: auto;
         background: #fff; z-index: 1200; transition: right .28s ease; box-shadow: -12px 0 40px rgba(0,0,0,.22); }
  .nav.open { right: 0; }
  .nav > ul { flex-direction: column; padding: 14px 0; }
  .nav > ul > li > a { color: var(--text); padding: 13px 22px; border-bottom: 1px solid #F0F3F7; }
  .nav > ul > li > button { color: var(--text); padding: 13px 22px; border-bottom: 1px solid #F0F3F7; border-radius: 0; width: 100%; text-align: left; }
  .nav .has-sub > a::after { float: right; }
  .nav .has-sub > button::after { float: right; }
  .nav .sub { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; border-radius: 0; border-left: 3px solid #DCE8F4; margin: 0 14px 6px; display: none; }
  .nav .sub.open { display: block; }
  .nav-overlay { display: none; position: fixed; inset: 0; background: rgba(5,32,60,.45); z-index: 1100; }
  .nav-overlay.show { display: block; }
}

/* ---------- 通用小节 ---------- */
.section { padding: 72px 0; }
.section.tint { background: #fff; }
.sec-head { text-align: center; max-width: 820px; margin: 0 auto 44px; }
.kicker { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 2px; color: var(--accent-dark);
          background: #FDEEDD; padding: 4px 14px; border-radius: 30px; margin-bottom: 12px; }
.sec-head h2 { font-size: 32px; color: var(--text); }
.sec-head h2 em { color: var(--brand); font-style: normal; }
.sec-head p { margin-top: 10px; color: var(--muted); }
.left-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; margin-bottom: 28px; flex-wrap: wrap; }
.left-head h2 { font-size: 28px; color: var(--text); }
.left-head p { color: var(--muted); margin-top: 6px; max-width: 640px; }

/* ---------- Hero ---------- */
.hero {
  position: relative; color: #fff; overflow: hidden;
  background:
    radial-gradient(1000px 480px at 85% -10%, rgba(240,134,60,.22), transparent 60%),
    radial-gradient(760px 420px at -8% 110%, rgba(250,199,117,.12), transparent 60%),
    linear-gradient(135deg, #06233F 0%, #0A3A68 58%, #0C447C 100%);
}
.hero::before {
  content: ""; position: absolute; inset: 0; opacity: .5; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 46px 46px;
}
.hero-grid { display: grid; grid-template-columns: 1.32fr .68fr; gap: 48px; align-items: center; padding: 74px 0 66px; position: relative; }
.hero h1 { font-size: 43px; line-height: 1.28; letter-spacing: .5px; }
.hero h1 em { color: var(--gold); font-style: normal; }
.hero .lead { margin-top: 18px; font-size: 17px; color: rgba(255,255,255,.85); max-width: 560px; }
.hero .cta-row { margin-top: 32px; display: flex; gap: 16px; flex-wrap: wrap; }
.hero .trust-row { margin-top: 38px; display: flex; gap: 34px; flex-wrap: wrap; }
.hero .trust-row .t-item b { display: block; font-size: 25px; color: var(--gold); line-height: 1.2; }
.hero .trust-row .t-item span { font-size: 13px; color: rgba(255,255,255,.72); }
.hero .tags { margin-top: 26px; display: flex; gap: 8px; flex-wrap: wrap; }
.hero .tags i { font-style: normal; font-size: 13px; border: 1px solid rgba(255,255,255,.35); border-radius: 20px; padding: 3px 12px; color: rgba(255,255,255,.85); }
.hero-card { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.16); border-radius: 16px; padding: 26px 26px 20px; backdrop-filter: blur(4px); }
.hero-card .hc-title { font-size: 15px; font-weight: 700; color: var(--gold); letter-spacing: .5px; margin-bottom: 18px; }
.flow { display: flex; flex-direction: column; gap: 4px; }
.flow-step { display: flex; gap: 14px; align-items: flex-start; position: relative; padding-bottom: 16px; }
.flow-step:last-child { padding-bottom: 0; }
.flow-step::before { content: ""; position: absolute; left: 17px; top: 36px; bottom: 0; width: 2px; background: rgba(250,199,117,.35); }
.flow-step:last-child::before { display: none; }
.flow-num { width: 36px; height: 36px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 800;
            display: flex; align-items: center; justify-content: center; font-size: 15px; flex-shrink: 0; }
.flow-step b { display: block; color: #fff; font-size: 15px; }
.flow-step p { color: rgba(255,255,255,.72); font-size: 13px; }
.hero-card .hc-foot { margin-top: 16px; border-top: 1px dashed rgba(255,255,255,.22); padding-top: 13px; font-size: 13px; color: rgba(255,255,255,.8); }
@media (max-width: 900px) {
  /* P0-④ 修复：移动端首屏必须露出主 CTA + 电话 —— Hero 压缩、流程卡后置 */
  .hero-grid { grid-template-columns: 1fr; gap: 30px; padding: 32px 0 40px; }
  .hero h1 { font-size: 27px; }
  .hero .lead { margin-top: 12px; font-size: 15px; }
  .hero .tags { margin-top: 16px; }
  .hero .tags i:nth-child(n+5) { display: none; }
  .hero .cta-row { margin-top: 20px; gap: 10px; }
  .hero .cta-row .btn { flex: 1 1 100%; padding: 14px 20px; font-size: 16px; }
  .hero .trust-row { margin-top: 22px; gap: 16px 22px; }
  .hero .trust-row .t-item b { font-size: 20px; }
  .hero-card { order: 2; padding: 20px 18px 16px; }
}

/* ≤480px 超窄屏：Hero 字号再次压缩，防止单行字符撑爆视口 */
@media (max-width: 480px) {
  .hero-grid { padding: 24px 0 32px; gap: 24px; }
  .hero h1 { font-size: 22px; line-height: 1.32; letter-spacing: 0; }
  .hero h1 br { display: inline; }
  .hero .lead { font-size: 14px; line-height: 1.7; }
  .hero .kicker { font-size: 11.5px; padding: 3px 10px; letter-spacing: 1.5px; }
  .hero .tags { gap: 6px; }
  .hero .tags i { font-size: 12px; padding: 3px 9px; }
  .hero .cta-row .btn { font-size: 15px; padding: 12px 16px; }
  .hero .cta-row .btn-tel .bt-txt small { font-size: 11px; }
  .hero .cta-row .btn-tel .bt-txt b { font-size: 17px; }
  .hero .trust-row { gap: 12px 16px; margin-top: 18px; }
  .hero .trust-row .t-item b { font-size: 18px; }
  .hero .trust-row .t-item span { font-size: 11.5px; }
  .hero-card { padding: 16px 14px 12px; }
  .hero-card .hc-title { font-size: 13px; margin-bottom: 14px; }
  .hero-card .flow-step p { font-size: 12px; }
  .hero-card .flow-step b { font-size: 14px; }
  .hero-card .flow-num { width: 32px; height: 32px; font-size: 13px; }
  .hero .cta-alt { font-size: 13px; }
  .hero .container, .container { padding: 0 14px; }
}

/* ---------- 信任条 ---------- */
.trustbar { background: #fff; border-bottom: 1px solid var(--line); }
.trustbar .container { display: flex; align-items: center; gap: 22px; padding: 16px 20px; flex-wrap: wrap; }
.trustbar .lbl { font-size: 13px; color: var(--muted); letter-spacing: 2px; white-space: nowrap; }
.trustbar ul { display: flex; gap: 14px; flex-wrap: wrap; }
.trustbar li { display: flex; align-items: center; gap: 7px; font-size: 14px; color: var(--text); background: #F4F7FB; padding: 7px 14px; border-radius: 8px; }
.trustbar li::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }

/* ---------- 卡片网格（产品体系） ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.prod-card {
  background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 24px 18px 20px;
  text-align: center; transition: all .25s ease; position: relative; overflow: hidden;
  display: flex; flex-direction: column;
}
.prod-card::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--accent); opacity: 0; transition: .25s; }
.prod-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: #C9DBED; }
.prod-card:hover::before { opacity: 1; }
.prod-ico { width: 66px; height: 66px; margin: 0 auto 14px; border-radius: 16px; background: #EDF4FB; display: flex; align-items: center; justify-content: center; }
.prod-card h3 { font-size: 17px; color: var(--brand); }
.prod-card p { font-size: 13px; color: var(--muted); margin-top: 8px; flex: 1; }
.prod-card ul { margin-top: 12px; text-align: left; }
.prod-card ul li { font-size: 12.5px; color: var(--muted); padding: 4px 0 4px 16px; position: relative; border-top: 1px dashed #EFF2F6; }
.prod-card ul li::before { content: ""; position: absolute; left: 2px; top: 11px; width: 6px; height: 6px; border-radius: 2px; background: var(--accent); }
.prod-card .more { margin-top: 14px; font-size: 13.5px; font-weight: 600; color: var(--brand); }
.prod-card .more:hover { color: var(--accent-dark); }
@media (max-width: 1080px) { .prod-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 720px) { .prod-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .prod-grid { grid-template-columns: 1fr; } }

/* ---------- 特性（为什么选我们） ---------- */
.feat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.feat-card { background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--brand); border-radius: 12px; padding: 26px 22px; box-shadow: 0 2px 10px rgba(8,46,85,.04); transition: .22s; }
.feat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-left-color: var(--accent); }
.feat-card .f-ico { width: 48px; height: 48px; border-radius: 12px; background: linear-gradient(135deg, var(--brand), #15569E); display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.feat-card h3 { font-size: 17px; margin-bottom: 8px; }
.feat-card p { font-size: 13.5px; color: var(--muted); }
.feat-card p b { color: var(--text); }
@media (max-width: 1023px) { .feat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .feat-grid { grid-template-columns: 1fr; } }

/* ---------- 流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; counter-reset: step; position: relative; }
.steps .step { position: relative; text-align: center; padding: 0 12px; }
.steps .step::before { counter-increment: step; content: counter(step, decimal-leading-zero); position: absolute; top: -12px; right: 16px; font-size: 52px; font-weight: 800; color: #E9EFF6; line-height: 1; z-index: 0; }
.step .s-dot { position: relative; z-index: 1; width: 74px; height: 74px; margin: 0 auto 14px; border-radius: 50%; background: #fff; border: 2px dashed #B9CFE5; display: flex; align-items: center; justify-content: center; }
.steps .step:nth-child(odd) .s-dot { border-style: solid; border-color: var(--brand); }
.step h3 { font-size: 16px; color: var(--brand); position: relative; z-index: 1; }
.step p { font-size: 13px; color: var(--muted); margin-top: 6px; position: relative; z-index: 1; }
.step .s-time { display: inline-block; margin-top: 8px; font-size: 12px; color: var(--accent-dark); background: #FDEEDD; padding: 2px 12px; border-radius: 20px; }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, 1fr); row-gap: 26px; } }
@media (max-width: 480px) { .steps { grid-template-columns: 1fr; } }

/* ---------- 案例数字 ---------- */
.case-band { border-radius: 18px; overflow: hidden; background: linear-gradient(120deg, var(--brand) 0%, #0F5296 100%); color: #fff; padding: 40px 42px; position: relative; }
.case-band::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 44px 44px; pointer-events: none; }
.case-band .cb-tag { display: inline-block; font-size: 12px; letter-spacing: 1px; color: var(--gold); border: 1px solid rgba(250,199,117,.5); border-radius: 20px; padding: 3px 12px; margin-bottom: 10px; }
.case-band h3 { font-size: 24px; }
.case-band h3 small { font-size: 14px; color: rgba(255,255,255,.75); font-weight: 400; margin-left: 8px; }
.case-nums { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 24px; position: relative; }
.case-num { background: rgba(255,255,255,.09); border: 1px solid rgba(255,255,255,.16); border-radius: 12px; padding: 18px 16px; text-align: center; }
.case-num b { display: block; font-size: 27px; color: var(--gold); }
.case-num b small { font-size: 15px; }
.case-num span { font-size: 12.5px; color: rgba(255,255,255,.8); }
.case-band .cb-sub { margin-top: 18px; font-size: 13px; color: rgba(255,255,255,.66); position: relative; }
@media (max-width: 720px) { .case-nums { grid-template-columns: repeat(2, 1fr); } .case-band { padding: 28px 22px; } }

/* ---------- 知识卡片 ---------- */
.know-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.know-card { background: #fff; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; transition: .22s; display: flex; flex-direction: column; }
.know-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.know-cover { height: 150px; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #E9F1F9, #F6FBFF); }
.know-body { padding: 20px 22px 18px; display: flex; flex-direction: column; flex: 1; }
.know-body .k-cat { font-size: 12px; color: var(--accent-dark); font-weight: 700; letter-spacing: 1px; }
.know-body h3 { font-size: 16px; margin-top: 8px; }
.know-body p { font-size: 13px; color: var(--muted); margin-top: 8px; flex: 1; }
.know-body .more { margin-top: 14px; font-size: 13px; color: var(--brand); font-weight: 600; }
.know-body .more:hover { color: var(--accent-dark); }
@media (max-width: 900px) { .know-grid { grid-template-columns: 1fr; } }

/* ---------- 询盘表单区 ---------- */
.inquiry { background: #0A2E52; background-image: radial-gradient(900px 400px at 90% 0%, rgba(240,134,60,.18), transparent 60%), linear-gradient(135deg, #06233F, #0C447C); color: #fff; }
.inq-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 44px; align-items: start; }
.inq-left h2 { font-size: 30px; }
.inq-left h2 em { color: var(--gold); font-style: normal; }
.inq-left p { color: rgba(255,255,255,.78); margin-top: 12px; }
.inq-list { margin-top: 22px; display: flex; flex-direction: column; gap: 12px; }
.inq-list li { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: rgba(255,255,255,.9); }
.inq-list li::before { content: "✓"; width: 20px; height: 20px; border-radius: 50%; background: var(--accent); color: #fff; font-size: 12px; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 2px; }
.inq-contact { margin-top: 26px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.15); border-radius: 12px; padding: 18px 20px; }
.inq-contact .tel { font-size: 26px; font-weight: 800; color: var(--gold); }
.inq-contact .addr { font-size: 13px; color: rgba(255,255,255,.7); margin-top: 6px; }
.form-card { background: #fff; color: var(--text); border-radius: 16px; padding: 28px 26px; box-shadow: 0 20px 50px rgba(3,20,38,.35); }
.form-card h3 { font-size: 19px; }
.form-card .sub { font-size: 13px; color: var(--muted); margin: 6px 0 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-group { margin-bottom: 14px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: #3A4655; margin-bottom: 6px; }
.form-group label i { color: var(--accent-dark); font-style: normal; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 11px 13px; border: 1px solid #D7DFE8; border-radius: 8px; background: #FBFCFE; color: var(--text); outline: none; transition: border .2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(12,68,124,.1); background: #fff; }
.form-group textarea { min-height: 88px; resize: vertical; }
.form-note { font-size: 12px; color: var(--muted); margin-top: 8px; }
@media (max-width: 900px) { .inq-grid { grid-template-columns: 1fr; } .form-row { grid-template-columns: 1fr; } }

/* ---------- 通用表格 ---------- */
.table-wrap { overflow-x: auto; background: #fff; border: 1px solid var(--line); border-radius: 12px; }
table.spec { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 640px; }
table.spec th, table.spec td { padding: 12px 16px; text-align: left; border-bottom: 1px solid #EDF1F5; }
table.spec thead th { background: var(--brand); color: #fff; font-weight: 600; letter-spacing: .5px; white-space: nowrap; }
table.spec tbody tr:nth-child(even) { background: #F8FAFD; }
table.spec tbody th { font-weight: 600; color: var(--text); white-space: nowrap; }
table.spec td { color: #3A4655; }
.table-cap { font-size: 13px; color: var(--muted); margin-top: 10px; }

/* ---------- 产品页组件 ---------- */
.crumb { padding: 12px 0; font-size: 13px; color: var(--muted); background: #fff; border-bottom: 1px solid var(--line); }
.crumb a:hover { color: var(--brand); }
.crumb .sep { margin: 0 8px; color: #B9C4D0; }
.prod-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; padding: 46px 0 26px; }
.prod-hero h1 { font-size: 32px; color: var(--text); line-height: 1.3; }
.prod-hero h1 em { color: var(--brand); font-style: normal; }
.prod-hero .lead { color: var(--muted); margin-top: 14px; font-size: 15.5px; }
.hl-list { margin-top: 18px; display: flex; flex-direction: column; gap: 9px; }
.hl-list li { display: flex; gap: 9px; font-size: 14px; color: #33404F; align-items: flex-start; }
.hl-list li::before { content: "✓"; color: var(--accent); font-weight: 800; }
.mini-spec { margin-top: 22px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.mini-spec div { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 11px 14px; }
.mini-spec b { display: block; font-size: 15px; color: var(--brand); }
.mini-spec span { font-size: 12px; color: var(--muted); }
@media (max-width: 900px) { .prod-hero { grid-template-columns: 1fr; } }
.figure-card { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 22px; box-shadow: var(--shadow); }
.figure-card .fc-t { font-size: 15px; font-weight: 700; color: var(--brand); margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.figure-card svg { width: 100%; height: auto; }
.fig-legend { display: flex; flex-wrap: wrap; gap: 10px 16px; margin-top: 12px; padding-top: 12px; border-top: 1px dashed #E3E8EE; }
.fig-legend span { font-size: 12.5px; color: #33404F; }
.fig-legend i { display: inline-flex; width: 18px; height: 18px; border-radius: 50%; background: var(--brand); color: #fff; font-size: 11px; align-items: center; justify-content: center; font-style: normal; margin-right: 4px; }
.tag-cloud { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.tag-cloud a { font-size: 13px; background: #fff; border: 1px solid var(--line); border-radius: 30px; padding: 5px 14px; color: var(--muted); }
.tag-cloud a:hover { border-color: var(--brand); color: var(--brand); }
.subcat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.subcat-card { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 20px 18px; transition: .22s; }
.subcat-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: #C9DBED; }
.subcat-card .sc-ico { width: 44px; height: 44px; margin-bottom: 12px; }
.subcat-card h3 { font-size: 16px; color: var(--brand); }
.subcat-card p { font-size: 13px; color: var(--muted); margin-top: 8px; }
@media (max-width: 900px) { .subcat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .subcat-grid { grid-template-columns: 1fr; } }

/* ---------- FAQ ---------- */
.faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.faq-item summary { list-style: none; display: flex; align-items: center; gap: 12px; padding: 16px 20px; cursor: pointer; font-weight: 600; font-size: 15px; color: var(--text); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before { content: "Q"; width: 26px; height: 26px; border-radius: 8px; background: var(--brand); color: #fff; font-size: 13px; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; }
.faq-item .faq-a { padding: 0 20px 16px 58px; color: var(--muted); font-size: 14px; }
.faq-item[open] { border-color: #BFD4E9; }
.faq-item[open] summary::before { background: var(--accent); }

/* ---------- 演示标注 ---------- */
.demo-note {
  position: fixed; left: 0; bottom: 0; z-index: 1500; font-size: 12px; color: #fff;
  background: rgba(190, 60, 60, .92); padding: 6px 14px; border-radius: 0 10px 0 0; letter-spacing: .5px;
}
.demo-note b { font-weight: 800; }
.demo-note a { text-decoration: underline; color: #FFD9A8; }
.demo-note button { background: none; border: 0; padding: 0; margin: 0; font-size: inherit; font-family: inherit; color: #FFD9A8; text-decoration: underline; cursor: pointer; }

/* ---------- 页脚 ---------- */
.footer { background: #05203C; color: rgba(255,255,255,.72); font-size: 13.5px; }
.footer-top { padding: 54px 0 32px; display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; }
.footer h4 { color: #fff; font-size: 16px; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 30px; height: 3px; border-radius: 2px; background: var(--accent); }
.footer li { margin-bottom: 9px; }
.footer li a:hover { color: var(--gold); }

/* ---- f-brand 品牌列 ---- */
.footer .f-brand .logo-txt b { color: #fff; }
.footer .f-brand-desc { margin-top: 14px; color: rgba(255,255,255,.62); line-height: 1.7; font-size: 13px; }

/* ---- 二维码 + 社交一体化 ---- */
.footer .f-cta-block {
  margin-top: 22px; padding-top: 20px;
  border-top: 1px dashed rgba(255,255,255,.14);
  display: flex; align-items: center; gap: 18px;
}
.footer .f-qr-card {
  flex-shrink: 0; width: 96px; height: 116px;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 8px; border-radius: 10px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  transition: all .22s ease;
}
.footer .f-qr-card:hover {
  background: rgba(255,255,255,.08);
  border-color: rgba(240,134,60,.4);
  transform: translateY(-2px);
}
.footer .f-qr-card img {
  width: 80px; height: 80px; display: block;
  background: #fff; padding: 2px; border-radius: 4px;
}
.footer .f-qr-card.is-missing img { display: none; }
.footer .f-qr-cap { font-size: 11px; color: rgba(255,255,255,.72); line-height: 1.35; text-align: center; letter-spacing: .3px; }

/* ---- 社交图标 ---- */
.footer .f-social { flex: 1; min-width: 0; }
.footer .f-social-title { color: #fff; font-size: 14px; font-weight: 500; margin-bottom: 12px; position: relative; padding-left: 10px; }
.footer .f-social-title::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 3px; height: 13px; background: var(--accent); border-radius: 2px;
}
.footer .f-social-grid { display: flex; gap: 10px; flex-wrap: wrap; }
.footer .f-social-item {
  display: flex; align-items: center; justify-content: center;
  width: 38px; height: 38px;
  border-radius: 50%;
  transition: background .22s ease, transform .22s ease;
  cursor: pointer;
  user-select: none;
}
.footer .f-social-item:hover { transform: translateY(-3px) scale(1.05); }
.footer .f-social-item.is-active {
  background: rgba(240,134,60,.14);
  box-shadow: inset 0 0 0 1px rgba(240,134,60,.35);
}
.footer .f-social-ico {
  width: 38px; height: 38px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  box-shadow: 0 4px 10px rgba(0,0,0,.3);
  transition: transform .25s ease;
}
.footer .f-social-item:hover .f-social-ico { transform: rotate(-8deg) scale(1.08); }
.footer .f-social-ico--wechat     { background: linear-gradient(135deg, #07C160 0%, #00a854 100%); }
.footer .f-social-ico--shipinhao  { background: linear-gradient(135deg, #FA6722 0%, #ff8c44 100%); }
.footer .f-social-ico--douyin     { background: linear-gradient(135deg, #161823 0%, #2c2f3a 100%); }
.footer .f-social-ico--wechat-oa  { background: linear-gradient(135deg, #2A5BAA 0%, #4A7BC2 100%); }

/* ---- f-contact 信息行（精简版） ---- */
.footer .f-contact .f-info { list-style: none; padding: 0; margin: 0; }
.footer .f-contact .f-info li { margin-bottom: 10px; display: block; }
.footer .f-info-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: 9px;
  background: rgba(255,255,255,.025);
  border: 1px solid rgba(255,255,255,.06);
  transition: background .22s ease, border-color .22s ease, transform .22s ease;
}
.footer .f-info-row:hover {
  background: rgba(255,255,255,.07);
  border-color: rgba(240,134,60,.35);
  transform: translateX(2px);
}
.footer .f-info-row .f-ico {
  flex-shrink: 0; width: 34px; height: 34px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  transition: transform .25s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,.25);
}
.footer .f-ico--tel { background: linear-gradient(135deg, #F0863C 0%, #ff6b35 100%); }
.footer .f-ico--mail { background: linear-gradient(135deg, #2A5BAA 0%, #4A7BC2 100%); }
.footer .f-ico--map { background: linear-gradient(135deg, #07C160 0%, #34d399 100%); }
.footer .f-info-row:hover .f-ico { transform: scale(1.08) rotate(-6deg); }
.footer .f-info-row .f-info-text { flex: 1; min-width: 0; display: flex; flex-direction: column; line-height: 1.35; }
.footer .f-info-text small { color: rgba(255,255,255,.5); font-size: 11px; letter-spacing: .3px; }
.footer .f-info-text b { color: #fff; font-size: 13.5px; font-weight: 500; word-break: break-all; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 18px 0;
  text-align: center;
  font-size: 12.5px;
  color: rgba(255,255,255,.5);
  letter-spacing: .3px;
}
.footer-bottom a { color: inherit; }
.footer-bottom a:hover { color: var(--gold); }

@media (max-width: 900px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px 24px; padding: 40px 0 24px; }
  .footer .f-brand { grid-column: 1 / -1; }
  .footer .f-cta-block { justify-content: flex-start; }
}
@media (max-width: 560px) {
  .footer-top { grid-template-columns: 1fr; }
}
@media (max-width: 380px) {
  .footer .f-cta-block { flex-direction: column; align-items: flex-start; gap: 14px; }
}

/* ---------- 侧边浮动询盘（可选） ---------- */
.float-bar { position: fixed; right: 0; top: 40%; z-index: 980; display: flex; flex-direction: column; }
.float-bar a { writing-mode: vertical-lr; background: var(--accent); color: #fff; font-size: 14px; font-weight: 600; letter-spacing: 2px; padding: 14px 8px; border-radius: 10px 0 0 10px; box-shadow: 0 6px 16px rgba(0,0,0,.18); }
.float-bar a.tel { background: var(--brand); margin-top: 8px; }
.float-bar a:hover { background: var(--accent-dark); }
@media (max-width: 900px) { .float-bar { display: none; } }

/* ---------- 动效 ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 打印 ---------- */
@media print {
  .topbar, .nav-wrap, .float-bar, .demo-note, .inquiry .form-card { display: none !important; }
  body { background: #fff; }
  .section { padding: 30px 0; page-break-inside: avoid; }
}

/* ---------- v2：GEO 摘要块（先答案后展开） ---------- */
.answer-strip { background: #fff; border-bottom: 1px solid var(--line); }
.answer-strip .container { padding: 18px 20px; display: flex; gap: 14px; align-items: flex-start; }
.answer-strip .as-badge { flex-shrink: 0; font-size: 12px; font-weight: 700; color: var(--brand); background: #EDF4FB; border: 1px solid #C9DBED; border-radius: 6px; padding: 3px 10px; margin-top: 2px; white-space: nowrap; }
.answer-strip p { font-size: 14px; color: #33404F; }
.answer-strip p b { color: var(--brand); }

/* ---------- v2：FAQ 区 ---------- */
.faq-section .sec-head { margin-bottom: 28px; }
.eeat-note { text-align: center; font-size: 12.5px; color: var(--muted); margin-top: 14px; }
.eeat-note b { color: var(--brand); }

/* ---------- v2：表单提交状态 ---------- */
.form-status { display: none; margin-top: 12px; padding: 12px 14px; border-radius: 8px; font-size: 14px; line-height: 1.6; }
.form-status.ok { display: block; background: #EAF6EE; border: 1px solid #BFE3CC; color: #1E7D3E; }
.form-status.err { display: block; background: #FDF1EE; border: 1px solid #ECC8C0; color: #B03A2E; }
.form-status a { color: var(--accent-dark); font-weight: 700; }
.hp-field { position: absolute; left: -9999px; top: -9999px; height: 0; overflow: hidden; }

/* ---------- v2：浮动询盘条显隐（进入表单区自动隐藏，防误触） ---------- */
.float-bar { transition: opacity .25s ease; }
.float-bar.hide { opacity: 0; pointer-events: none; }

/* =========================================================
   ===== v3 转化架构（电话/微信优先） =====
   电话主 CTA（橙）+ 微信副 CTA（绿 #07C160）双通道；
   询盘区三通道卡 / 微信弹层 / 移动 sticky 底条
   ========================================================= */
:root { --wechat: #07C160; --wechat-dark: #06AD56; --wechat-deep: #067A3E; }

/* --- 顶栏电话 --- */
.topbar .tb-tel { font-weight: 600; }
.topbar .tb-tel b { color: var(--gold); font-weight: 800; }

/* --- 微信绿按钮（Header / 通用） --- */
.btn-wx { background: var(--wechat); color: #fff; }
.btn-wx:hover { background: var(--wechat-dark); transform: translateY(-1px); }

/* --- Hero 电话主按钮：双行（小字说明 + 大号号码），保留 accent 权重与投影 --- */
.btn-tel { gap: 12px; }
.btn-tel .bt-txt { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.25; }
.btn-tel .bt-txt small { font-size: 12px; font-weight: 500; opacity: .92; letter-spacing: .5px; }
.btn-tel .bt-txt b { font-size: 21px; font-weight: 800; letter-spacing: 1px; }
.cta-alt { display: inline-block; margin-top: 14px; font-size: 14px; color: rgba(255,255,255,.75); }
.cta-alt b { color: var(--gold); font-weight: 600; }
.cta-alt:hover { color: #fff; }

/* --- Header 移动端收缩：≤700px 隐藏整条顶部信息 + 右侧 CTA 区，只保留 logo + 汉堡菜单 --- */
@media (max-width: 700px) {
  .topbar { display: none !important; }
  .hd-phone { display: none; }
  .header-right { display: none; }
  .logo-sub { display: none !important; }
  .header-in { gap: 0; padding: 10px 0; }
  .logo-txt b { font-size: 18px; }
  .logo-txt span { font-size: 10.5px; letter-spacing: 1px; }
  .logo-mark { width: 40px; height: 40px; }
  .logo-mark--z svg { width: 40px; height: 40px; }
  .logo { gap: 9px; }
  .header { border-bottom: 1px solid var(--line); }
}

/* --- 通用双按钮组（案例尾 / FAQ 尾等复用） --- */
.cta-duo { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 30px; }

/* --- float-bar v3：电话·橙主 / 微信·绿副（复用原 a 样式，补 button 形态） --- */
.float-bar a.tel { background: var(--accent); }
.float-bar button {
  writing-mode: vertical-lr; background: var(--wechat); color: #fff; font-size: 14px; font-weight: 600;
  letter-spacing: 2px; padding: 14px 8px; border-radius: 10px 0 0 10px; box-shadow: 0 6px 16px rgba(0,0,0,.18);
  border: 0; cursor: pointer; font-family: inherit;
}
.float-bar .wx { margin-top: 8px; }
.float-bar button:hover { background: var(--wechat-dark); }

/* --- 询盘区：三通道卡 --- */
.kicker--on-dark { background: rgba(250,199,117,.15); color: var(--gold); }
.inq-head { max-width: 780px; margin-bottom: 34px; }
.inq-head h2 { font-size: 30px; }
.inq-head h2 em { color: var(--gold); font-style: normal; }
.inq-head > p { color: rgba(255,255,255,.78); margin-top: 12px; }
.inq-head .inq-list { margin-top: 20px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 26px; }
.inq-addr { margin-top: 18px; font-size: 13px; color: rgba(255,255,255,.6); }

.ch-grid { display: grid; grid-template-columns: 1fr 1fr 1.5fr; gap: 18px; align-items: stretch; }
.ch-card {
  background: #fff; color: var(--text); border-radius: 16px; padding: 24px 22px;
  box-shadow: 0 12px 34px rgba(3,20,38,.28); position: relative;
  display: flex; flex-direction: column; align-items: flex-start;
}
.ch-card::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; border-radius: 16px 16px 0 0; background: var(--accent); }
.ch-wx::before { background: var(--wechat); }
.ch-form::before { background: #B9CFE5; }
.ch-tag { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 1px; color: var(--accent-dark); background: #FDEEDD; border-radius: 20px; padding: 3px 12px; }
.ch-tag--wx { color: var(--wechat-deep); background: #E7F7EE; }
.ch-tag--muted { color: var(--muted); background: #F0F3F7; }
.ch-card h3 { font-size: 18px; margin: 12px 0 10px; }
.ch-tel-num { display: block; font-size: 30px; font-weight: 800; color: var(--accent-dark); letter-spacing: .5px; line-height: 1.2; }
.ch-tel-num:hover { color: var(--accent); }
.ch-note { margin-top: 8px; font-size: 13.5px; color: var(--muted); line-height: 1.7; }
.ch-sub { margin-top: auto; padding-top: 12px; border-top: 1px dashed var(--line); font-size: 13px; color: #33404F; }

/* 二维码占位框：图片未放置时显示虚线+文字，放入 assets/img/wechat-qr.png 即自动生效 */
.qr-ph {
  position: relative; width: 150px; height: 150px; margin: 4px 0 12px;
  border: 2px dashed #B9CFE5; border-radius: 12px; background: #F8FBFE;
  display: flex; align-items: center; justify-content: center;
  color: #9AA7B5; font-size: 12.5px; overflow: hidden;
}
.qr-ph img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.qr-ph--lg { width: 220px; height: 220px; margin: 0 auto 14px; }
.qr-ph--md { width: 180px; height: 180px; margin: 0 auto 12px; }
.wx-id-line { font-size: 14px; color: var(--muted); }
.wx-id-line b { color: var(--text); font-size: 16px; }
.wx-id-line span { margin-left: 8px; font-size: 12.5px; }
.copy-btn {
  margin-top: 10px; background: #EDF4FB; color: var(--brand); border: 1px solid #C9DBED;
  border-radius: 8px; padding: 7px 14px; font-size: 13px; font-weight: 600; cursor: pointer;
}
.copy-btn:hover { background: #DCEAF7; }
.copy-btn:disabled { opacity: .7; cursor: default; }

/* 留言表单卡：视觉弱化（三通道中的第三选择） */
.ch-form { padding: 20px 22px 22px; box-shadow: 0 8px 22px rgba(3,20,38,.18); }
.ch-form .ch-tag { margin-bottom: 2px; }

@media (max-width: 900px) {
  .ch-grid { grid-template-columns: 1fr; }
  .ch-form { order: 3; }
}

/* --- 微信弹层 --- */
.wx-modal { position: fixed; inset: 0; z-index: 1300; display: flex; align-items: center; justify-content: center; padding: 20px; }
.wx-modal[hidden] { display: none; }
.wx-mask { position: absolute; inset: 0; background: rgba(5,32,60,.55); }
.wx-panel {
  position: relative; background: #fff; color: var(--text); border-radius: 16px;
  padding: 28px 26px 22px; width: min(360px, 92vw); text-align: center;
  box-shadow: 0 24px 60px rgba(3,20,38,.4);
}
.wx-panel h3 { font-size: 18px; margin-bottom: 16px; }
.wx-panel .copy-btn { display: inline-block; margin-top: 8px; }
.wx-tip { margin-top: 14px; font-size: 13px; color: var(--muted); line-height: 1.7; }
.wx-tip a { color: var(--accent-dark); font-weight: 700; }
.wx-close {
  position: absolute; top: 10px; right: 10px; width: 36px; height: 36px; border-radius: 50%;
  border: 0; background: #F0F3F7; color: var(--muted); font-size: 15px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}
.wx-close:hover { background: #E3E8EE; color: var(--text); }
@media (prefers-reduced-motion: reduce) {
  .wx-modal, .wx-panel, .m-sticky, .float-bar { transition: none !important; }
}

/* --- 移动端 sticky 底部双按钮（≤600px 显示，桌面隐藏） --- */
.m-sticky { display: none; }
@media (max-width: 600px) {
  body { padding-bottom: calc(64px + env(safe-area-inset-bottom, 0px)); }
  .m-sticky {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 990;
    display: flex; gap: 10px;
    padding: 10px 12px calc(10px + env(safe-area-inset-bottom, 0px));
    background: rgba(255,255,255,.96); box-shadow: 0 -6px 20px rgba(5,32,60,.14);
    backdrop-filter: blur(6px); transition: opacity .25s ease;
  }
  .m-sticky a, .m-sticky button {
    flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px;
    min-height: 50px; border-radius: 10px; color: #fff; border: 0; cursor: pointer; font-family: inherit; padding: 4px;
  }
  .m-sticky a b, .m-sticky button b { font-size: 15.5px; font-weight: 700; line-height: 1.2; }
  .m-sticky a span, .m-sticky button span { font-size: 10.5px; font-weight: 400; opacity: .92; line-height: 1.2; }
  .m-sticky .ms-tel { background: var(--accent); box-shadow: 0 4px 12px rgba(240,134,60,.35); }
  .m-sticky .ms-wx { background: var(--wechat); }
  .m-sticky .ms-tel:hover { background: var(--accent-dark); }
  .m-sticky .ms-wx:hover { background: var(--wechat-dark); }
  .m-sticky.hide { opacity: 0; pointer-events: none; }
}

/* --- v3 打印补充 --- */
@media print {
  .m-sticky, .wx-modal { display: none !important; }
}

/* --- 实拍图区（素材落地 2026-09-04，纯新增工具类） --- */
.shot-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; margin-top: 24px; }
.shot { background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; box-shadow: 0 2px 8px rgba(8,46,85,.05); }
.shot img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; background: #F4F6F9; }
.shot .shot-cap { padding: 10px 12px 11px; font-size: 12.5px; color: #3A4655; line-height: 1.55; }
.shot .shot-cap b { display: block; color: var(--text); font-size: 13.5px; margin-bottom: 3px; }
.shot--tall { grid-column: span 1; }
.shot--tall img { aspect-ratio: auto; max-height: 460px; object-fit: contain; background: #fff; }
.shot--tall .shot-cap { border-top: 1px dashed var(--line); }
@media (max-width: 560px) { .shot-grid { grid-template-columns: 1fr 1fr; } .shot img { aspect-ratio: 1 / 1; } }

/* --- v3 知识 6 卡：聚合 SEO 长尾 --- */
.kgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 24px; }
.kcard { display: block; padding: 22px 22px 20px; background: #fff; border: 1px solid var(--line); border-radius: 14px; color: var(--text); text-decoration: none; transition: all .2s ease; box-shadow: 0 2px 6px rgba(15,30,55,.04); }
.kcard:hover { transform: translateY(-3px); border-color: var(--brand); box-shadow: 0 10px 24px rgba(15,30,55,.10); }
.kc-cat { display: inline-block; padding: 3px 10px; background: rgba(28,86,156,.10); color: var(--brand); font-size: 11.5px; font-weight: 600; border-radius: 100px; margin-bottom: 12px; letter-spacing: .5px; }
.kcard h3 { font-size: 16px; line-height: 1.5; margin: 0 0 8px; color: var(--text); }
.kcard p { font-size: 13.5px; line-height: 1.65; color: var(--muted); margin: 0; }
.kmore { text-align: center; margin-top: 28px; }
.kmore a { display: inline-block; padding: 10px 22px; border: 1px solid var(--brand); color: var(--brand); border-radius: 100px; font-weight: 600; font-size: 14px; text-decoration: none; transition: all .2s; }
.kmore a:hover { background: var(--brand); color: #fff; }
@media (max-width: 900px) { .kgrid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .kgrid { grid-template-columns: 1fr; } .kcard { padding: 18px; } }