/* ===== 大连评信 Pynsin 官网样式 =====
   风格：简约、沉稳 | 深藏青 + 低调金 */

:root {
  --navy: #0f2038;
  --navy-2: #16304f;
  --gold: #c8a24a;
  --gold-soft: #d8bd7d;
  --ink: #1c2634;
  --gray: #5c6773;
  --line: #e6e9ee;
  --bg: #ffffff;
  --bg-soft: #f6f8fa;
  --radius: 10px;
  --shadow: 0 6px 24px rgba(15, 32, 56, 0.08);
  --maxw: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  line-height: 1.7;
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ===== 顶部导航 ===== */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(15, 32, 56, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(200, 162, 74, 0.2);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 8px;
  background: linear-gradient(135deg, var(--gold), var(--gold-soft));
  display: grid; place-items: center;
  color: var(--navy); font-weight: 800; font-size: 18px;
  font-family: "Times New Roman", serif;
}
.brand-text { color: #fff; }
.brand-cn { font-size: 18px; font-weight: 700; letter-spacing: 1px; }
.brand-en { font-size: 11px; color: var(--gold-soft); letter-spacing: 3px; text-transform: uppercase; }

.nav-links { display: flex; gap: 34px; list-style: none; }
.nav-links a {
  color: #d7dde6; font-size: 15px; font-weight: 500;
  padding: 6px 0; position: relative; transition: color .2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--gold-soft); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; bottom: -2px;
  width: 100%; height: 2px; background: var(--gold);
}
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: #fff; margin: 5px 0; transition: .3s; }

/* ===== 通用区块 ===== */
.section { padding: 84px 0; }
.section-soft { background: var(--bg-soft); }
.eyebrow {
  color: var(--gold); font-size: 13px; font-weight: 700;
  letter-spacing: 3px; text-transform: uppercase; margin-bottom: 14px;
}
.section-title {
  font-size: 32px; font-weight: 700; color: var(--navy);
  margin-bottom: 16px; line-height: 1.3;
}
.section-desc { color: var(--gray); font-size: 16px; max-width: 640px; }
.center { text-align: center; }
.center .section-desc { margin: 0 auto; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px; border-radius: 8px; font-size: 15px; font-weight: 600;
  transition: all .25s; cursor: pointer; border: none;
}
.btn-gold { background: var(--gold); color: var(--navy); }
.btn-gold:hover { background: var(--gold-soft); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(200,162,74,.3); }
.btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.35); }
.btn-ghost:hover { border-color: var(--gold-soft); color: var(--gold-soft); }
.btn-outline { background: transparent; color: var(--navy); border: 1px solid var(--navy); }
.btn-outline:hover { background: var(--navy); color: #fff; }

/* ===== Hero ===== */
.hero {
  background:
    linear-gradient(rgba(15,32,56,.86), rgba(15,32,56,.92)),
    radial-gradient(circle at 20% 30%, #1c3a5e 0%, transparent 55%),
    var(--navy);
  color: #fff; padding: 110px 0 100px; position: relative; overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; right: -80px; top: -80px;
  width: 360px; height: 360px; border: 1px solid rgba(200,162,74,.18);
  border-radius: 50%;
}
.hero h1 { font-size: 46px; font-weight: 800; line-height: 1.25; margin-bottom: 22px; }
.hero h1 .accent { color: var(--gold-soft); }
.hero p { font-size: 18px; color: #c4cedb; max-width: 600px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-badges { display: flex; gap: 28px; margin-top: 54px; flex-wrap: wrap; }
.hero-badge { display: flex; align-items: center; gap: 10px; color: #d7dde6; font-size: 14px; }
.hero-badge b { color: var(--gold-soft); }

/* ===== 品牌墙 ===== */
.brands-strip { background: var(--navy-2); padding: 34px 0; }
.brands-strip .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 24px; }
.brands-label { color: #9fb0c4; font-size: 14px; letter-spacing: 1px; }
.brands-logos { display: flex; gap: 40px; flex-wrap: wrap; }
.brand-chip {
  color: #fff; font-weight: 800; font-size: 22px; letter-spacing: 1px;
  font-family: "Times New Roman", serif; opacity: .92;
}
.brand-chip span { color: var(--gold-soft); font-size: 12px; display: block; font-weight: 400; letter-spacing: 2px; }

/* ===== 卡片网格 ===== */
.grid { display: grid; gap: 26px; margin-top: 50px; }
.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: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 28px; transition: all .28s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--gold-soft); }
.card-icon {
  width: 52px; height: 52px; border-radius: 10px;
  background: rgba(200,162,74,.12); color: var(--gold);
  display: grid; place-items: center; margin-bottom: 20px; font-size: 24px;
}
.card h3 { font-size: 19px; color: var(--navy); margin-bottom: 10px; }
.card p { color: var(--gray); font-size: 15px; }

/* ===== 服务品类小卡 ===== */
.service-tag {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px; text-align: center; transition: all .25s;
}
.service-tag:hover { border-color: var(--gold); box-shadow: var(--shadow); }
.service-tag .code {
  font-family: "Times New Roman", serif; font-size: 30px; font-weight: 800;
  color: var(--navy); margin-bottom: 6px;
}
.service-tag .full { font-size: 13px; color: var(--gray); margin-bottom: 12px; min-height: 34px; }
.service-tag .type { display: inline-block; font-size: 12px; color: var(--gold); background: rgba(200,162,74,.12); padding: 4px 12px; border-radius: 20px; }

/* ===== 流程 ===== */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 50px; counter-reset: step; }
.step { position: relative; padding: 30px 22px; background: #fff; border-radius: var(--radius); border: 1px solid var(--line); }
.step-num {
  width: 42px; height: 42px; border-radius: 50%; background: var(--navy); color: var(--gold-soft);
  display: grid; place-items: center; font-weight: 800; font-size: 18px; margin-bottom: 16px;
  font-family: "Times New Roman", serif;
}
.step h4 { color: var(--navy); font-size: 17px; margin-bottom: 8px; }
.step p { color: var(--gray); font-size: 14px; }
.step:not(:last-child)::after {
  content: "→"; position: absolute; right: -16px; top: 44px; color: var(--gold);
  font-size: 20px; z-index: 2;
}

/* ===== 关于页 ===== */
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: center; }
.about-grid p { color: var(--gray); font-size: 16px; margin-bottom: 18px; }
.about-highlight {
  background: var(--navy); color: #fff; border-radius: var(--radius); padding: 40px 34px;
}
.about-highlight h3 { color: var(--gold-soft); font-size: 20px; margin-bottom: 20px; }
.stat-row { display: flex; gap: 34px; flex-wrap: wrap; }
.stat b { display: block; font-size: 34px; color: var(--gold); font-family: "Times New Roman", serif; }
.stat span { font-size: 13px; color: #c4cedb; }

.values { list-style: none; }
.values li { padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.12); display: flex; gap: 12px; align-items: flex-start; }
.values li:last-child { border: none; }
.values .dot { color: var(--gold); font-weight: 800; }

/* ===== 联系页 ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.contact-item { display: flex; gap: 16px; margin-bottom: 26px; align-items: flex-start; }
.contact-item .ci-icon {
  width: 46px; height: 46px; border-radius: 10px; background: rgba(200,162,74,.12);
  color: var(--gold); display: grid; place-items: center; font-size: 20px; flex-shrink: 0;
}
.contact-item h4 { color: var(--navy); font-size: 16px; margin-bottom: 4px; }
.contact-item p { color: var(--gray); font-size: 15px; }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: 14px; color: var(--navy); font-weight: 600; margin-bottom: 6px; }
.form-field input, .form-field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px;
  font-size: 15px; font-family: inherit; transition: border .2s;
}
.form-field input:focus, .form-field textarea:focus { outline: none; border-color: var(--gold); }
.form-note { font-size: 13px; color: var(--gray); margin-top: 10px; }

/* ===== CTA 区 ===== */
.cta {
  background: linear-gradient(135deg, var(--navy), var(--navy-2));
  color: #fff; text-align: center; padding: 72px 0;
}
.cta h2 { font-size: 30px; margin-bottom: 14px; }
.cta p { color: #c4cedb; margin-bottom: 30px; }

/* ===== 页脚 ===== */
.footer { background: var(--navy); color: #9fb0c4; padding: 54px 0 28px; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 34px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 10px; font-size: 14px; }
.footer ul li a:hover { color: var(--gold-soft); }
.footer-brand .brand-cn { color: #fff; font-size: 20px; font-weight: 700; }
.footer-brand p { font-size: 14px; margin-top: 12px; max-width: 300px; }
.footer-bottom { padding-top: 24px; text-align: center; font-size: 13px; color: #6b7c90; }

/* ===== 响应式 ===== */
@media (max-width: 860px) {
  .nav-links {
    position: absolute; top: 68px; left: 0; right: 0; flex-direction: column;
    background: var(--navy); padding: 20px 24px; gap: 4px;
    border-bottom: 1px solid rgba(200,162,74,.2);
    transform: translateY(-140%); transition: transform .3s; z-index: -1;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: 12px 0; display: block; }
  .nav-toggle { display: block; }
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .step:not(:last-child)::after { display: none; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 34px; }
  .hero h1 { font-size: 34px; }
  .section-title { font-size: 26px; }
  .section { padding: 60px 0; }
  .hero { padding: 70px 0 60px; }
}
@media (max-width: 480px) {
  .steps { grid-template-columns: 1fr; }
  .hero-badges { gap: 16px; }
}