/* ============================================================
   中护航贴身保镖 · 前台样式
   深蓝金 · Glassmorphism · 响应式
   ============================================================ */
:root {
  --bg: #0a1220;
  --bg-2: #0d1830;
  --panel: rgba(255, 255, 255, 0.05);
  --panel-strong: rgba(255, 255, 255, 0.09);
  --line: rgba(201, 162, 39, 0.28);
  --line-soft: rgba(255, 255, 255, 0.10);
  --gold: #d4af37;
  --gold-2: #c9a227;
  --gold-soft: rgba(212, 175, 55, 0.14);
  --text: #eef2f8;
  --text-2: #a8b3c7;
  --text-3: #6d7a92;
  --danger: #e05555;
  --ok: #3fbf7f;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(212,175,55,.08), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, rgba(46,84,168,.14), transparent 55%),
    var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }
::selection { background: var(--gold); color: #10131a; }

.wrap { width: min(1200px, 92%); margin: 0 auto; }

/* ---------- 顶部导航 ---------- */
.topbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 18, 32, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line-soft);
}
.topbar-in { display: flex; align-items: center; gap: 28px; height: 72px; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo-badge {
  width: 42px; height: 42px; border-radius: 12px; flex: none;
  background: linear-gradient(135deg, #16233f, #0d1830);
  border: 1px solid var(--line);
  display: grid; place-items: center;
  box-shadow: inset 0 0 18px rgba(212,175,55,.15);
}
.logo-badge svg { width: 24px; height: 24px; }
.logo-txt b { font-size: 18px; letter-spacing: 2px; display: block; line-height: 1.2; }
.logo-txt span { font-size: 11px; color: var(--text-3); letter-spacing: 3px; }
.nav { display: flex; gap: 6px; margin-left: auto; }
.nav a {
  padding: 9px 16px; border-radius: 999px; font-size: 15px; color: var(--text-2);
  transition: .2s;
}
.nav a:hover { color: var(--text); background: var(--panel); }
.nav a.on { color: var(--gold); background: var(--gold-soft); border: 1px solid var(--line); }
.top-actions { display: flex; align-items: center; gap: 12px; }
.top-phone { display: flex; align-items: center; gap: 8px; color: var(--gold); font-weight: 700; font-size: 16px; letter-spacing: .5px; }
.top-phone svg { width: 17px; height: 17px; }
.burger { display: none; background: none; border: 1px solid var(--line-soft); border-radius: 10px; padding: 8px 10px; }
.burger span { display: block; width: 20px; height: 2px; background: var(--text); margin: 4px 0; border-radius: 2px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px; border-radius: 999px; border: none;
  font-size: 15px; font-weight: 600; letter-spacing: 1px;
  transition: .22s; white-space: nowrap;
}
.btn-gold {
  background: linear-gradient(135deg, #e6c65c, #c9a227);
  color: #171204;
  box-shadow: 0 8px 26px rgba(212, 175, 55, 0.35);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 12px 34px rgba(212,175,55,.45); }
.btn-ghost {
  background: var(--panel); color: var(--text);
  border: 1px solid var(--line-soft);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn-sm { padding: 8px 18px; font-size: 13px; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: 72px 0 90px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; border-radius: 999px; font-size: 13px; letter-spacing: 2px;
  color: var(--gold); background: var(--gold-soft); border: 1px solid var(--line);
  margin-bottom: 22px;
}
.hero h1 { font-size: clamp(34px, 4.6vw, 56px); line-height: 1.22; letter-spacing: 1px; }
.hero h1 .gold {
  background: linear-gradient(120deg, #f0d879, #c9a227 60%, #e6c65c);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead { margin-top: 20px; color: var(--text-2); font-size: 17px; max-width: 560px; }
.hero-cta { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { margin-top: 44px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.stat {
  background: var(--panel); border: 1px solid var(--line-soft); border-radius: var(--radius-sm);
  padding: 16px 12px; text-align: center; backdrop-filter: blur(10px);
}
.stat b { display: block; font-size: 26px; color: var(--gold); }
.stat span { font-size: 12.5px; color: var(--text-3); }
.hero-visual { position: relative; }
.hero-visual .frame {
  border-radius: 22px; overflow: hidden; border: 1px solid var(--line);
  box-shadow: var(--shadow);
  transform: rotate(1.6deg);
}
.hero-visual .frame img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.hero-chip {
  position: absolute; display: flex; align-items: center; gap: 10px;
  background: rgba(13, 24, 48, 0.88); border: 1px solid var(--line);
  backdrop-filter: blur(14px); border-radius: 14px; padding: 12px 16px;
  box-shadow: var(--shadow); font-size: 13px;
}
.hero-chip b { color: var(--gold); font-size: 15px; display: block; }
.hero-chip.c1 { left: -26px; bottom: 34px; }
.hero-chip.c2 { right: -18px; top: 40px; }
.hero-chip .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 12px var(--ok); flex: none; }

/* ---------- 通用 Section ---------- */
.sec { padding: 84px 0; }
.sec-alt { background: rgba(255,255,255,.02); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.sec-head { text-align: center; margin-bottom: 48px; }
.sec-head .kicker {
  color: var(--gold); font-size: 13px; letter-spacing: 4px; text-transform: uppercase;
}
.sec-head h2 { font-size: clamp(26px, 3.2vw, 38px); margin-top: 10px; letter-spacing: 1px; }
.sec-head p { color: var(--text-2); margin-top: 12px; max-width: 640px; margin-left: auto; margin-right: auto; }
.sec-head .rule {
  width: 64px; height: 3px; margin: 18px auto 0; border-radius: 3px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 22px; }
.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(--panel); border: 1px solid var(--line-soft); border-radius: var(--radius);
  padding: 28px; backdrop-filter: blur(12px); transition: .25s;
}
.card:hover { transform: translateY(-4px); border-color: var(--line); background: var(--panel-strong); }
.card h3 { font-size: 19px; margin: 14px 0 8px; }
.card p { color: var(--text-2); font-size: 14.5px; }
.card .icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: var(--gold-soft); border: 1px solid var(--line);
}
.card .icon svg { width: 26px; height: 26px; }

/* 服务卡 */
.svc-card { overflow: hidden; padding: 0; display: flex; flex-direction: column; }
.svc-card .pic { position: relative; overflow: hidden; }
.svc-card .pic img { width: 100%; aspect-ratio: 1; object-fit: cover; transition: .5s; }
.svc-card:hover .pic img { transform: scale(1.06); }
.svc-card .pic .badge {
  position: absolute; top: 14px; left: 14px;
  background: rgba(13,24,48,.85); border: 1px solid var(--line); color: var(--gold);
  font-size: 12px; padding: 5px 12px; border-radius: 999px; letter-spacing: 1px;
  backdrop-filter: blur(8px);
}
.svc-card .body { padding: 22px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.svc-card h3 { margin: 0; font-size: 19px; display: flex; align-items: center; justify-content: space-between; }
.svc-card h3 .en { font-size: 11px; color: var(--text-3); letter-spacing: 1.5px; font-weight: 400; }
.svc-card .desc { margin-top: 10px; color: var(--text-2); font-size: 14px; flex: 1; }
.svc-card .tags { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 8px; }
.svc-card .tags i {
  font-style: normal; font-size: 12px; color: var(--text-2);
  background: rgba(255,255,255,.05); border: 1px solid var(--line-soft);
  padding: 3px 10px; border-radius: 999px;
}
.svc-card .foot {
  margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line-soft);
  display: flex; align-items: center; justify-content: space-between;
}
.svc-card .price { color: var(--gold); font-weight: 700; font-size: 14px; }
.svc-card .more { color: var(--text-3); font-size: 13px; transition: .2s; }
.svc-card:hover .more { color: var(--gold); }
.hot-flag { color: var(--danger); font-size: 11px; border: 1px solid rgba(224,85,85,.4); padding: 2px 8px; border-radius: 999px; letter-spacing: 1px; }

/* 海报墙 */
.wall { columns: 4 240px; column-gap: 16px; }
.wall a { display: block; margin-bottom: 16px; border-radius: 14px; overflow: hidden; border: 1px solid var(--line-soft); transition: .25s; break-inside: avoid; }
.wall a:hover { border-color: var(--gold); transform: translateY(-3px); }
.wall img { width: 100%; }

/* 流程 */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; counter-reset: step; }
.step { position: relative; background: var(--panel); border: 1px solid var(--line-soft); border-radius: var(--radius); padding: 26px 20px; backdrop-filter: blur(10px); }
.step::before {
  counter-increment: step; content: "0" counter(step);
  font-size: 30px; font-weight: 800; color: transparent;
  -webkit-text-stroke: 1px rgba(212,175,55,.6);
  display: block; margin-bottom: 10px;
}
.step b { display: block; font-size: 16px; margin-bottom: 6px; }
.step p { font-size: 13px; color: var(--text-2); }

/* 优势列表页 */
.feat { display: flex; gap: 20px; }
.feat .num {
  flex: none; width: 54px; height: 54px; border-radius: 14px;
  background: linear-gradient(135deg, rgba(212,175,55,.2), rgba(212,175,55,.05));
  border: 1px solid var(--line); color: var(--gold);
  display: grid; place-items: center; font-weight: 800; font-size: 18px;
}
.feat h3 { font-size: 18px; margin-bottom: 8px; }
.feat p { color: var(--text-2); font-size: 14.5px; }

/* 城市网络 */
.city-groups { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 18px; }
.city-group { background: var(--panel); border: 1px solid var(--line-soft); border-radius: var(--radius); padding: 22px; backdrop-filter: blur(10px); }
.city-group b { color: var(--gold); font-size: 15px; display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.city-group b::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 10px var(--gold); }
.city-group ul { display: flex; flex-wrap: wrap; gap: 8px; }
.city-group li { font-size: 13px; color: var(--text-2); background: rgba(255,255,255,.04); border: 1px solid var(--line-soft); padding: 4px 12px; border-radius: 999px; }

/* 资讯 */
.news-card { overflow: hidden; padding: 0; display: flex; flex-direction: column; }
.news-card .pic img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.news-card .body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.news-meta { display: flex; gap: 10px; align-items: center; font-size: 12.5px; color: var(--text-3); }
.news-meta .tag { color: var(--gold); border: 1px solid var(--line); background: var(--gold-soft); padding: 2px 10px; border-radius: 999px; }
.news-card h3 { margin: 12px 0 8px; font-size: 17.5px; line-height: 1.5; }
.news-card p { color: var(--text-2); font-size: 14px; flex: 1; }
.news-card .more { margin-top: 14px; color: var(--gold); font-size: 13.5px; }

/* 文章页 */
.article { max-width: 820px; margin: 0 auto; }
.article .head { margin-bottom: 30px; }
.article h1 { font-size: clamp(24px, 3vw, 34px); line-height: 1.4; }
.article .body-txt { margin-top: 10px; color: var(--text); font-size: 16px; }
.article .body-txt p { margin-bottom: 18px; color: var(--text-2); font-size: 15.5px; }
.article .body-txt p:first-child::first-letter { color: var(--gold); font-size: 130%; }

/* FAQ */
.faq { max-width: 860px; margin: 0 auto; }
.faq-item { background: var(--panel); border: 1px solid var(--line-soft); border-radius: var(--radius); margin-bottom: 14px; overflow: hidden; backdrop-filter: blur(10px); transition: .2s; }
.faq-item.open { border-color: var(--line); }
.faq-q {
  width: 100%; background: none; border: none; color: var(--text);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 24px; font-size: 16px; text-align: left; font-weight: 600;
}
.faq-q .plus { color: var(--gold); font-size: 22px; transition: .25s; flex: none; }
.faq-item.open .faq-q .plus { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-a-in { padding: 0 24px 20px; color: var(--text-2); font-size: 14.5px; }

/* 表单 */
.form-panel {
  background: var(--panel); border: 1px solid var(--line); border-radius: 20px;
  padding: 36px; backdrop-filter: blur(14px); box-shadow: var(--shadow);
}
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 13.5px; color: var(--text-2); margin-bottom: 8px; letter-spacing: .5px; }
.field label i { color: var(--danger); font-style: normal; }
.field input, .field select, .field textarea {
  width: 100%; background: rgba(0,0,0,.28); border: 1px solid var(--line-soft);
  color: var(--text); border-radius: 10px; padding: 12px 14px; font-size: 15px;
  transition: .2s; outline: none;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(212,175,55,.15); }
.field textarea { resize: vertical; min-height: 110px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-msg { margin-top: 6px; font-size: 14px; min-height: 20px; }
.form-msg.ok { color: var(--ok); }
.form-msg.err { color: var(--danger); }

/* 联系信息 */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 28px; align-items: start; }
.contact-item { display: flex; gap: 16px; align-items: flex-start; padding: 18px 0; border-bottom: 1px solid var(--line-soft); }
.contact-item:last-child { border-bottom: none; }
.contact-item .icon { flex: none; width: 44px; height: 44px; border-radius: 12px; background: var(--gold-soft); border: 1px solid var(--line); display: grid; place-items: center; }
.contact-item .icon svg { width: 22px; height: 22px; }
.contact-item b { display: block; font-size: 15px; }
.contact-item span { color: var(--text-2); font-size: 14px; }

/* CTA 横幅 */
.cta-band {
  border: 1px solid var(--line); border-radius: 24px; padding: 52px 40px;
  background:
    radial-gradient(600px 200px at 20% 0%, rgba(212,175,55,.16), transparent 60%),
    var(--panel-strong);
  backdrop-filter: blur(14px);
  display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap;
}
.cta-band h2 { font-size: clamp(22px, 2.6vw, 32px); }
.cta-band p { color: var(--text-2); margin-top: 8px; }

/* 页脚 */
footer { border-top: 1px solid var(--line-soft); background: rgba(0,0,0,.25); padding: 56px 0 28px; margin-top: 40px; }
.ft-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 32px; }
.ft-brand p { color: var(--text-3); font-size: 13.5px; margin-top: 14px; max-width: 300px; }
.ft-col b { display: block; font-size: 15px; margin-bottom: 14px; color: var(--gold); letter-spacing: 1px; }
.ft-col a, .ft-col li { display: block; color: var(--text-2); font-size: 13.5px; padding: 5px 0; transition: .2s; }
.ft-col a:hover { color: var(--gold); }
.ft-bottom {
  margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--line-soft);
  display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  color: var(--text-3); font-size: 12.5px;
}
.ft-age { border: 1px solid var(--line); color: var(--gold); padding: 2px 10px; border-radius: 999px; font-weight: 700; }
.ft-tip { max-width: 760px; }

/* 浮动咨询 */
.float-contact {
  position: fixed; right: 22px; bottom: 26px; z-index: 90;
  display: flex; flex-direction: column; gap: 12px;
}
.float-contact a {
  width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(13,24,48,.92); border: 1px solid var(--line); box-shadow: var(--shadow);
  transition: .2s; backdrop-filter: blur(8px);
}
.float-contact a:hover { transform: scale(1.08); border-color: var(--gold); }
.float-contact svg { width: 24px; height: 24px; }

/* 动效 */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.vis { opacity: 1; transform: none; }

/* 页面小标题条 */
.page-hero { padding: 64px 0 40px; text-align: center; }
.page-hero h1 { font-size: clamp(28px, 3.6vw, 42px); letter-spacing: 2px; }
.page-hero .crumb { margin-top: 12px; color: var(--text-3); font-size: 13px; }
.page-hero .crumb a:hover { color: var(--gold); }

/* 响应式 */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { max-width: 560px; margin: 0 auto; }
  .ft-grid { grid-template-columns: 1fr 1fr; }
  .top-phone span { display: none; }
}
@media (max-width: 720px) {
  .nav {
    display: none; position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; background: rgba(10,18,32,.97); border-bottom: 1px solid var(--line-soft);
    padding: 14px 6%; gap: 4px; backdrop-filter: blur(16px);
  }
  .nav.open { display: flex; }
  .burger { display: block; margin-left: auto; }
  .top-actions .btn { display: none; }
  .grid-2, .grid-3, .grid-4, .form-row, .contact-grid { grid-template-columns: 1fr; }
  .hero { padding: 44px 0 60px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .sec { padding: 60px 0; }
  .hero-chip.c1, .hero-chip.c2 { display: none; }
  .ft-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .float-contact a { width: 48px; height: 48px; }
}