:root {
  --ink: #172033;
  --muted: #607086;
  --line: #dfe6ef;
  --paper: #ffffff;
  --wash: #f5f7fb;
  --navy: #102340;
  --blue: #0f7899;
  --teal: #0f766e;
  --red: #c9332b;
  --gold: #d99a22;
  --green: #166534;
  --shadow: 0 16px 40px rgba(31, 45, 68, .10);
  --radius: 8px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--wash);
  line-height: 1.6;
}

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

img { max-width: 100%; display: block; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.nav-wrap {
  max-width: 1180px;
  margin: 0 auto;
  min-height: 70px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  color: var(--navy);
  white-space: nowrap;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--navy), var(--blue) 62%, var(--gold));
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 15px;
  letter-spacing: 0;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  margin-top: -3px;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
  color: #38465a;
  font-size: 14px;
}

.nav-links a { padding: 8px 0; }
.nav-links a:hover { color: var(--blue); }

.member-link {
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  padding: 8px 12px !important;
  font-weight: 800;
  color: var(--navy);
  background: #fff;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 6px;
  width: 42px;
  height: 38px;
  font-size: 20px;
}

.hero {
  background:
    linear-gradient(90deg, rgba(16,35,64,.95), rgba(16,35,64,.76)),
    url("https://images.unsplash.com/photo-1494412519320-aa613dfb7738?auto=format&fit=crop&w=1800&q=80") center/cover;
  color: #fff;
}

.hero-inner {
  max-width: 1180px;
  margin: 0 auto;
  min-height: 560px;
  padding: 70px 24px;
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 40px;
  align-items: center;
}

.eyebrow {
  color: #8bd5ff;
  font-weight: 800;
  font-size: 14px;
  margin: 0 0 14px;
}

h1, h2, h3 { line-height: 1.18; letter-spacing: 0; }
h1 { margin: 0 0 20px; font-size: clamp(34px, 5vw, 58px); }
h2 { margin: 0 0 12px; font-size: clamp(28px, 3vw, 38px); }
h3 { margin: 0 0 10px; font-size: 20px; }

.hero-copy {
  max-width: 670px;
  color: #dce9f8;
  font-size: 18px;
  margin: 0 0 28px;
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 6px;
  font-weight: 800;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: #0b6c8a; }
.btn-secondary { border-color: rgba(255,255,255,.45); color: #fff; background: rgba(255,255,255,.10); }
.btn-light { border-color: #cbd5e1; color: var(--navy); background: #fff; }

.hero-card, .panel {
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card { padding: 26px; }

.route-list {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.route-step {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
}

.route-step b {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #dff4ff;
  color: #075985;
  font-size: 13px;
}

.route-step strong { display: block; margin-bottom: 2px; }
.route-step span { display: block; color: var(--muted); font-size: 14px; }

.section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 70px 24px;
}

.section.alt {
  max-width: none;
  background: #fff;
}

.section.alt > .section-inner {
  max-width: 1180px;
  margin: 0 auto;
}

.section-head {
  max-width: 780px;
  margin-bottom: 28px;
}

.section-head p {
  color: var(--muted);
  margin: 0;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  min-height: 176px;
}

.card .tag {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 5px 9px;
  border-radius: 999px;
  background: #eff6ff;
  color: #075985;
  font-size: 12px;
  font-weight: 800;
}

.card p, .muted { color: var(--muted); }

.timeline {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  gap: 1px;
}

.phase {
  background: #fbfcfe;
  padding: 22px 18px;
  min-height: 150px;
}

.phase b {
  display: block;
  color: var(--blue);
  margin-bottom: 8px;
}

.phase span {
  color: var(--muted);
  font-size: 14px;
}

.image-band {
  min-height: 310px;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(15,118,110,.82), rgba(201,51,43,.34)),
    url("https://images.unsplash.com/photo-1566576912321-d58ddd7a6088?auto=format&fit=crop&w=1400&q=80") center/cover;
}

.list-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
}

.list-panel ul {
  margin: 0;
  padding-left: 20px;
  color: #4b5a6e;
}

.list-panel li { margin: 10px 0; }

.page-hero {
  background:
    linear-gradient(90deg, rgba(16,35,64,.94), rgba(15,118,110,.70)),
    url("https://images.unsplash.com/photo-1601584115197-04ecc0da31d7?auto=format&fit=crop&w=1800&q=80") center/cover;
  color: #fff;
}

.page-hero .section {
  padding-top: 84px;
  padding-bottom: 84px;
}

.page-hero p {
  max-width: 720px;
  color: #dce9f8;
  font-size: 18px;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.faq-item + .faq-item { margin-top: 12px; }
.faq-item strong { display: block; margin-bottom: 8px; color: var(--navy); }
.faq-item p { margin: 0; color: var(--muted); }

.contact-band {
  background: var(--navy);
  color: #fff;
}

.contact-band .section {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 34px;
  align-items: center;
}

.contact-band p { color: #d6e2f0; }

.quote-form {
  background: #fff;
  color: var(--ink);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

label {
  display: block;
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 6px;
}

input, textarea, select {
  width: 100%;
  border: 1px solid #cfd8e6;
  border-radius: 6px;
  padding: 11px 12px;
  font: inherit;
  color: var(--ink);
  background: #fff;
}

textarea { min-height: 96px; resize: vertical; }

.form-note {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.qr-box {
  display: inline-grid;
  gap: 10px;
  margin: 14px 0 16px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.qr-box span {
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.qr-missing::before {
  content: "二维码图片待导入";
  display: grid;
  place-items: center;
  width: 180px;
  height: 180px;
  border: 1px dashed #cbd5e1;
  border-radius: 6px;
  color: var(--muted);
  background: #f8fafc;
  font-size: 14px;
  text-align: center;
}

.qr-image {
  width: 180px;
  height: 180px;
  object-fit: contain;
  border-radius: 6px;
  background: #fff;
}

.footer-qr {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 14px;
  align-items: start;
}

.footer-qr .qr-image {
  width: 92px;
  height: 92px;
}

.footer-qr.qr-missing::before {
  width: 92px;
  height: 92px;
  font-size: 12px;
}

.news-list {
  display: grid;
  gap: 16px;
}

.news-item {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  align-items: start;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.date {
  border-left: 4px solid var(--gold);
  padding-left: 12px;
  color: var(--muted);
  font-weight: 800;
}

.site-footer {
  background: #0c1729;
  color: #d6e2f0;
}

.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 38px 24px;
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 28px;
}

.site-footer h3 { color: #fff; font-size: 17px; }
.site-footer p, .site-footer a { color: #b8c7da; }
.footer-links { display: grid; gap: 8px; }
.copyright {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 16px 24px;
  text-align: center;
  color: #93a4ba;
  font-size: 13px;
}

@media (max-width: 980px) {
  .menu-toggle { display: inline-grid; place-items: center; }
  .nav-links {
    position: absolute;
    left: 0;
    right: 0;
    top: 70px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 24px 18px;
    background: #fff;
    border-bottom: 1px solid var(--line);
  }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid #eef2f6; }
  .member-link { text-align: center; margin-top: 8px; }
  .hero-inner, .contact-band .section, .grid-2 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav-wrap { padding: 0 18px; }
  .brand small { display: none; }
  .hero-inner { padding: 54px 18px; }
  .section { padding: 54px 18px; }
  .grid-4, .timeline, .form-row, .news-item { grid-template-columns: 1fr; }
  .actions .btn { width: 100%; }
  .footer-qr { grid-template-columns: 1fr; }
}