/* ===== CredoEXP 官网样式 ===== */
:root {
  --c-bg: #faf9f7;
  --c-surface: #ffffff;
  --c-ink: #1a1f2b;
  --c-ink-soft: #4a5162;
  --c-muted: #7a8194;
  --c-line: #e8e5df;
  --c-brand: #0f5c4c;
  --c-brand-dark: #0a4438;
  --c-brand-soft: #e7f2ef;
  --c-accent: #d98a2b;
  --c-accent-dark: #b96f1a;
  --c-accent-soft: #fbf0e2;
  --c-danger: #c0392b;
  --c-success: #1d9e75;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow-sm: 0 1px 3px rgba(26, 31, 43, 0.06);
  --shadow-md: 0 6px 24px rgba(26, 31, 43, 0.08);
  --shadow-lg: 0 16px 48px rgba(26, 31, 43, 0.12);
  --font: "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --maxw: 1160px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  color: var(--c-ink);
  background: var(--c-bg);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--c-brand); text-decoration: none; }
a:hover { text-decoration: underline; }
button { font-family: inherit; cursor: pointer; }

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

/* ===== 顶栏 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--c-line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; color: var(--c-ink); text-decoration: none; }
.brand:hover { text-decoration: none; }
.brand .logo-mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--c-brand-dark), var(--c-brand) 55%, var(--c-accent));
  color: #fff;
  display: grid; place-items: center; font-size: 15px; font-weight: 800; flex: none;
  position: relative;
  box-shadow: 0 2px 8px rgba(15,92,76,0.22);
}
.brand .logo-mark::after {
  content: "";
  position: absolute;
  right: -2px; top: -2px;
  width: 10px; height: 10px;
  background: var(--c-accent);
  border-radius: 3px;
  transform: rotate(45deg);
  box-shadow: 0 0 0 2px #fff;
}
.brand .logo-img {
  height: 32px; width: auto; display: block; flex: none;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.06));
}
.brand .tagline { display: block; font-size: 11px; font-weight: 400; color: var(--c-muted); line-height: 1.2; }
.brand .slogan { display: block; font-size: 10px; font-weight: 600; letter-spacing: 0.08em; color: var(--c-brand); line-height: 1.2; margin-top: 2px; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  color: var(--c-ink-soft); padding: 8px 12px; border-radius: 8px;
  font-size: 15px; font-weight: 500;
}
.main-nav a:hover { background: var(--c-brand-soft); color: var(--c-brand); text-decoration: none; }
.main-nav a.active { color: var(--c-brand); }

.header-actions { display: flex; align-items: center; gap: 10px; }

.lang-switch {
  display: inline-flex; align-items: center; gap: 2px;
  border: 1px solid var(--c-line); border-radius: 999px;
  padding: 4px; background: #fff;
}
.lang-switch button {
  border: none; background: transparent; padding: 5px 11px;
  border-radius: 999px; font-size: 13px; font-weight: 600; color: var(--c-muted);
}
.lang-switch button.active { background: var(--c-brand); color: #fff; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 22px; border-radius: 10px; font-weight: 600; font-size: 15px;
  border: 1px solid transparent; transition: all .18s ease; white-space: nowrap;
}
.btn-primary { background: var(--c-brand); color: #fff; }
.btn-primary:hover { background: var(--c-brand-dark); text-decoration: none; }
.btn-accent { background: var(--c-accent); color: #fff; }
.btn-accent:hover { background: var(--c-accent-dark); text-decoration: none; }
.btn-outline { background: transparent; color: var(--c-brand); border-color: var(--c-brand); }
.btn-outline:hover { background: var(--c-brand-soft); text-decoration: none; }
.btn-lg { padding: 14px 28px; font-size: 16px; }

.nav-toggle { display: none; border: none; background: transparent; font-size: 24px; color: var(--c-ink); }

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 88px 0 72px;
  background:
    radial-gradient(1100px 500px at 80% -10%, var(--c-brand-soft), transparent 60%),
    radial-gradient(700px 400px at 0% 20%, var(--c-accent-soft), transparent 55%),
    var(--c-bg);
  overflow: hidden;
}
.hero .container { position: relative; z-index: 2; }
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 48px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--c-line); border-radius: 999px;
  padding: 6px 14px; font-size: 13px; font-weight: 600; color: var(--c-brand);
  margin-bottom: 22px; box-shadow: var(--shadow-sm);
}
.hero h1 {
  font-size: clamp(34px, 5vw, 54px); line-height: 1.12; font-weight: 800;
  letter-spacing: -0.02em; margin-bottom: 20px;
}
.hero h1 .accent { color: var(--c-brand); }
.hero .lead { font-size: 18px; color: var(--c-ink-soft); max-width: 540px; margin-bottom: 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 38px; }
.hero-stats { display: flex; gap: 36px; flex-wrap: wrap; }
.hero-stats .stat .v { font-size: 26px; font-weight: 800; color: var(--c-ink); }
.hero-stats .stat .k { font-size: 13px; color: var(--c-muted); }

.hero-visual {
  position: relative;
  background: linear-gradient(150deg, var(--c-brand-dark), var(--c-brand));
  border-radius: 22px;
  padding: 34px;
  color: #fff;
  box-shadow: var(--shadow-lg);
}
.hero-visual .card { background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.16); border-radius: 14px; padding: 18px; margin-bottom: 14px; }
.hero-visual .card .lbl { font-size: 12px; opacity: 0.75; }
.hero-visual .card .val { font-size: 18px; font-weight: 700; margin-top: 2px; }
.hero-visual .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.hero-visual .tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.hero-visual .chip { background: rgba(255,255,255,0.14); padding: 5px 12px; border-radius: 999px; font-size: 13px; }

/* ===== Section 通用 ===== */
.section { padding: 76px 0; }
.section.alt { background: #fff; border-top: 1px solid var(--c-line); border-bottom: 1px solid var(--c-line); }
.section-head { max-width: 680px; margin-bottom: 44px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--c-accent); margin-bottom: 12px; }
.section-head h2 { font-size: clamp(26px, 3.4vw, 36px); font-weight: 800; letter-spacing: -0.01em; margin-bottom: 14px; }
.section-head p { color: var(--c-ink-soft); font-size: 17px; }

/* ===== 服务卡片 ===== */
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
  padding: 0; overflow: hidden; transition: transform .18s ease, box-shadow .18s ease;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card .card-img {
  width: 100%; height: auto; display: block; flex: none;
}
.card .card-body { padding: 14px 18px 16px; flex: 1; }
.card .icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  font-size: 22px; margin-bottom: 16px;
}
.card h3 { font-size: 16px; font-weight: 700; margin-bottom: 5px; }
.card p { color: var(--c-ink-soft); font-size: 13.5px; line-height: 1.5; }

/* ===== 为什么选我们 ===== */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.why-item { display: flex; gap: 16px; padding: 22px; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); }
.why-item .num { font-size: 15px; font-weight: 800; color: var(--c-accent); flex: none; width: 30px; }
.why-item h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.why-item p { color: var(--c-ink-soft); font-size: 15px; }
.quote {
  margin-top: 36px; text-align: center; padding: 34px; background: var(--c-brand-soft);
  border-radius: var(--radius); font-size: 19px; font-weight: 600; color: var(--c-brand-dark);
  font-style: italic;
}

/* ===== 流程 ===== */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.step { position: relative; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 24px 20px; }
.step .step-num {
  width: 34px; height: 34px; border-radius: 50%; background: var(--c-brand); color: #fff;
  display: grid; place-items: center; font-weight: 700; font-size: 15px; margin-bottom: 14px;
}
.step h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.step p { color: var(--c-ink-soft); font-size: 14px; }

/* ===== 关于 ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.about-copy p { color: var(--c-ink-soft); margin-bottom: 16px; font-size: 16px; }
.about-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.fact { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-sm); padding: 16px; }
.fact .k { font-size: 13px; color: var(--c-muted); }
.fact .v { font-size: 16px; font-weight: 700; }
.about-visual { background: var(--c-surface); border: 1px solid var(--c-line); border-radius: 18px; overflow: hidden; box-shadow: var(--shadow-md); }
.about-visual img { width: 100%; height: 320px; object-fit: cover; }
.about-visual .cap { padding: 16px 20px; font-size: 14px; color: var(--c-ink-soft); }

/* ===== 核心价值 ===== */
.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.value-card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
  padding: 32px 28px; text-align: center; transition: transform .18s ease, box-shadow .18s ease;
}
.value-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.value-icon {
  width: 96px; height: 96px; border-radius: 18px; margin: 0 auto 18px;
  display: grid; place-items: center;
  background: #fff;
  border: 1px solid var(--c-line);
  color: var(--c-brand);
  overflow: hidden;
  padding: 8px;
}
.value-icon img { width: 100%; height: 100%; object-fit: contain; display: block; }
.value-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--c-ink); }
.value-card p { color: var(--c-ink-soft); font-size: 15px; line-height: 1.55; }

/* ===== CTA ===== */
.cta-band {
  background: linear-gradient(135deg, var(--c-brand-dark), var(--c-brand));
  color: #fff; border-radius: 20px; padding: 56px 48px; text-align: center;
}
.cta-band h2 { font-size: clamp(26px, 3.4vw, 36px); font-weight: 800; margin-bottom: 12px; }
.cta-band p { opacity: 0.9; max-width: 560px; margin: 0 auto 28px; font-size: 17px; }
.cta-band .btn-accent { background: #fff; color: var(--c-brand-dark); }
.cta-band .btn-accent:hover { background: var(--c-accent-soft); }

/* ===== 页脚 ===== */
.site-footer { background: #13201c; color: #c9d4cf; padding: 64px 0 0; }
.footer-brand-link { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: #fff; margin-bottom: 14px; }
.footer-brand-link:hover { text-decoration: none; }
.footer-logo-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, #0a4438, #0f5c4c 55%, #d98a2b);
  color: #fff;
  display: grid; place-items: center; font-size: 16px; font-weight: 800; flex: none;
  position: relative;
  box-shadow: 0 2px 8px rgba(15,92,76,0.3);
}
.footer-logo-mark::after {
  content: "";
  position: absolute;
  right: -2px; top: -2px;
  width: 10px; height: 10px;
  background: #e8a33d;
  border-radius: 3px;
  transform: rotate(45deg);
  box-shadow: 0 0 0 2px #13201c;
}
.footer-brand-text { display: flex; flex-direction: column; gap: 2px; }
.footer-brand-name { color: #fff; font-size: 19px; font-weight: 800; letter-spacing: -0.01em; }
.footer-brand-tag { color: #e8a33d; font-size: 10px; font-weight: 600; letter-spacing: 0.08em; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 44px; }
.footer-grid h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.footer-grid a { color: #c9d4cf; font-size: 14px; display: block; padding: 4px 0; }
.footer-grid a:hover { color: #fff; text-decoration: none; }
.footer-brand .logo-mark { background: var(--c-brand); }
.footer-brand p { font-size: 14px; margin-top: 14px; max-width: 320px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0 24px; display: flex; flex-direction: column; gap: 10px; font-size: 13px; }
.footer-bottom a { color: #c9d4cf; }
.footer-partner { font-size: 17px; font-weight: 600; color: #fff; letter-spacing: 0.02em; }
.footer-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* ===== Cookie 横幅 ===== */
.cookie-banner {
  position: fixed; left: 20px; right: 20px; bottom: 20px; z-index: 100;
  max-width: 720px; margin: 0 auto;
  background: #fff; border: 1px solid var(--c-line); border-radius: 14px;
  box-shadow: var(--shadow-lg); padding: 18px 22px;
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
}
.cookie-banner p { flex: 1; min-width: 240px; font-size: 14px; color: var(--c-ink-soft); }
.cookie-banner .actions { display: flex; gap: 10px; }

/* ===== 表单 ===== */
.form-wrap { max-width: 720px; margin: 0 auto; }
.form-card { background: #fff; border: 1px solid var(--c-line); border-radius: 18px; padding: 40px; box-shadow: var(--shadow-sm); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 14px; font-weight: 600; color: var(--c-ink); }
.field label .opt { color: var(--c-muted); font-weight: 400; }
.field input, .field textarea, .field select {
  font-family: inherit; font-size: 15px; padding: 12px 14px;
  border: 1px solid var(--c-line); border-radius: 10px; background: #fdfdfc;
  color: var(--c-ink); width: 100%; transition: border-color .15s ease, box-shadow .15s ease;
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--c-brand); box-shadow: 0 0 0 3px var(--c-brand-soft);
}
.field .hint { font-size: 12.5px; color: var(--c-muted); }
.form-notice { margin-top: 20px; padding: 14px 16px; border-radius: 10px; font-size: 14.5px; display: none; }
.form-notice.success { display: block; background: #e7f7f0; color: var(--c-success); border: 1px solid #bfe8d8; }
.form-notice.error { display: block; background: #fdecea; color: var(--c-danger); border: 1px solid #f5c6c0; }

/* 联系页信息区 */
.contact-info-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 40px; }
.contact-info-grid .ci { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 20px; }
.contact-info-grid .ci .lbl { font-size: 13px; color: var(--c-muted); margin-bottom: 6px; }
.contact-info-grid .ci .val { font-size: 15px; font-weight: 700; word-break: break-all; }

/* ===== 合规页面 ===== */
.legal-page { max-width: 800px; margin: 0 auto; padding: 60px 24px; }
.legal-page h1 { font-size: 34px; font-weight: 800; margin-bottom: 8px; }
.legal-page .updated { color: var(--c-muted); font-size: 14px; margin-bottom: 32px; }
.legal-page h2 { font-size: 22px; font-weight: 700; margin: 32px 0 12px; }
.legal-page p, .legal-page li { color: var(--c-ink-soft); font-size: 15.5px; margin-bottom: 12px; }
.legal-page ul, .legal-page ol { padding-left: 24px; margin-bottom: 12px; }

/* ===== 响应式 ===== */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 480px; }
  .cards-grid, .why-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-info-grid { grid-template-columns: repeat(2, 1fr); }
  .main-nav {
    position: fixed; top: 68px; left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: stretch; gap: 0;
    padding: 12px 16px; border-bottom: 1px solid var(--c-line);
    display: none;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px; border-radius: 8px; }
  .nav-toggle { display: block; }
}

@media (max-width: 600px) {
  .cards-grid, .why-grid, .steps { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .form-card { padding: 26px 20px; }
  .hero { padding: 56px 0 48px; }
  .header-actions .btn { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
}