/*-----------------------支柱----------------*/
:root {
  --navy:    #0c1d30;
  --steel:   #1b3a5c;
  --mid:     #2563a0;
  --light-mid: #3b7ec8;
  --accent:  #d97706;
  --accent2: #b45309;
  --light-bg:#f4f2ee;
  --card:    #ffffff;
  --text:    #1c1c1c;
  --muted:   #5a5a5a;
  --border:  #ddd8cf;
  --green:   #166534;
  --red:     #991b1b;
  --serif:   'Playfair Display', Georgia, serif;
  --sans:    'Source Sans 3', sans-serif;
  --max:     1280px;
  --max-wide: 1320px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--sans); color: var(--text); background: var(--light-bg); line-height: 1.75; font-size: 16px; }

.toc-bar { background: var(--card); border-bottom: 1px solid var(--border); padding: 12px 24px; position: sticky; top: 56px; z-index: 80; }
.toc-inner { max-width: var(--max-wide); margin: 0 auto; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.toc-label { font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; margin-right: 6px; white-space: nowrap; }
.toc-bar a { font-size: 0.8rem; color: var(--steel); text-decoration: none; padding: 3px 11px; border: 1px solid var(--border); border-radius: 20px; white-space: nowrap; transition: background 0.15s, border-color 0.15s; }
.toc-bar a:hover { background: #e8f0fb; border-color: var(--light-mid); }

.hero {
    color: #fff;
    padding: 70px 24px 78px;
    position: relative;
    background: rgba(0,0,0,0.3)url(/shunshiglobal/2025/07/26/banner1-3.jpg) no-repeat center center;
    overflow: hidden;
    background-blend-mode: darken;
}
.hero::after {
  content: '';
  position: absolute; right: 0; top: 0; bottom: 0; width: 45%;
  background: linear-gradient(135deg, transparent 0%, rgba(37,99,160,0.18) 100%);
  pointer-events: none;
}
.hero-inner { max-width: var(--max-wide); margin: 0 auto; position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 340px; gap: 56px; align-items: center; margin-top: 50px; }
.breadcrumb { font-size: 0.78rem; color: rgba(255,255,255,0.45); margin-bottom: 16px; }
.breadcrumb a { color: rgba(255,255,255,0.55); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { margin: 0 5px; }
.hero-pill {
  display: inline-flex; align-items: center; gap: 7px;
  background: rgba(217,119,6,0.15); border: 1px solid rgba(217,119,6,0.4);
  color: #fbbf24; font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; padding: 5px 14px; border-radius: 20px; margin-bottom: 18px;
}
.hero h1 { font-family: var(--serif); font-size: clamp(1.9rem, 4vw, 3rem); font-weight: 700; line-height: 1.2; margin-bottom: 18px; }
.hero h1 em { color: #fbbf24; font-style: normal; }
.hero-desc { font-size: 1rem; color: rgba(255,255,255,0.78); max-width: 540px; margin-bottom: 32px; line-height: 1.7; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-gold { background: var(--accent); color: var(--navy); font-weight: 700; font-size: 0.92rem; padding: 12px 26px; border-radius: 4px; text-decoration: none; transition: background 0.2s, transform 0.15s; display: inline-block; }
.btn-gold:hover { background: var(--accent2); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: rgba(255,255,255,0.85); font-weight: 500; font-size: 0.92rem; padding: 11px 26px; border-radius: 4px; text-decoration: none; border: 1.5px solid rgba(255,255,255,0.3); transition: border-color 0.2s; display: inline-block; }
.btn-ghost:hover { border-color: rgba(255,255,255,0.7); }

.hero-trust { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); border-radius: 10px; padding: 24px; }
.trust-title { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.1em; color: rgba(255,255,255,0.45); margin-bottom: 18px; }
.trust-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.trust-item strong { display: block; font-family: var(--serif); font-size: 1.5rem; color: #fbbf24; }
.trust-item span { font-size: 0.75rem; color: rgba(255,255,255,0.55); text-transform: uppercase; letter-spacing: 0.05em; }
.trust-flags { margin-top: 16px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,0.1); font-size: 0.78rem; color: rgba(255,255,255,0.6); line-height: 1.6; }

.page-body { max-width: var(--max-wide); margin: 0 auto; padding: 52px 24px 80px; display: grid; grid-template-columns: 1fr 280px; gap: 44px; }

.article {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 44px 52px 52px;
  box-shadow: 0 4px 20px rgba(12,29,48,0.06);
}
.article h2 {
  font-family: var(--serif); font-size: 1.85rem; font-weight: 700; color: var(--navy);
  margin: 56px 0 18px; padding: 0 0 14px 0; position: relative;
  border-bottom: 2px solid var(--accent); line-height: 1.3;
}
.article h2::before {
  content: ''; display: inline-block; width: 26px; height: 4px;
  background: var(--accent); margin-right: 0; vertical-align: middle;
}
.article h2:first-of-type { margin-top: 0; }
.article h3 { font-family: var(--serif); font-size: 1.2rem; font-weight: 700; color: var(--steel); margin: 34px 0 12px; padding-left: 12px; border-left: 3px solid var(--light-mid); }
.article p { margin-bottom: 18px; color: #2a2a2a; font-size: 1.01rem; }
.article ul, .article ol { padding-left: 22px; margin-bottom: 18px; }
.article li { margin-bottom: 9px; }
.article a { color: var(--mid); }
.article strong { color: var(--navy); }

.box { padding: 16px 20px; margin: 24px 0; border-radius: 0 6px 6px 0; border-left: 4px solid; }
.box-blue { background: #eff6ff; border-color: var(--mid); }
.box-amber { background: #fffbeb; border-color: var(--accent); }
.box-green { background: #f0fdf4; border-color: var(--green); }
.box-title { font-size: 0.82rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--navy); margin-bottom: 7px; }
.box p { margin: 0; font-size: 0.9rem; }

.type-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin: 20px 0; }
.type-card { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 16px; transition: box-shadow 0.2s, transform 0.2s; }
.type-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.09); transform: translateY(-2px); }
.type-card-ico { font-size: 1.5rem; margin-bottom: 8px; }
.type-card h4 { font-family: var(--serif); font-size: 0.9rem; font-weight: 700; color: var(--navy); margin-bottom: 5px; }
.type-card p { font-size: 0.8rem; color: var(--muted); margin: 0; line-height: 1.5; }
.tag { display: inline-block; font-size: 0.68rem; font-weight: 600; letter-spacing: 0.04em; background: #e1eaf8; color: var(--steel); padding: 2px 8px; border-radius: 10px; margin-top: 8px; }
.tag-green { background: #dcfce7; color: var(--green); }
.tag-amber { background: #fef3c7; color: #92400e; }

.table-wrap { width: 100%; overflow: hidden; border: 1px solid var(--border); border-radius: 6px; margin: 16px 0 24px; }
.table-wrap table { margin: 0; border-radius: 0; border: none; }

.spec-table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
  font-size: 0.86rem;
  margin: 16px 0 24px;
  table-layout: auto;
}
.spec-table th,
.spec-table td {
  box-sizing: border-box;
  border: 1px solid var(--border);
}
.spec-table thead th {
  background: var(--navy); color: #fff; padding: 10px 14px; text-align: left;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.04em;
  white-space: normal; border-color: var(--navy);
}
.spec-table td { padding: 9px 14px; vertical-align: middle; }
.spec-table th:last-child,
.spec-table td:last-child { width: 110px; min-width: 110px; text-align: center; }
.spec-table tr:nth-child(even) td { background: #f8f5f1; }
.spec-table tr:hover td { background: #eff6ff; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 3px; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.04em; white-space: nowrap; }
.bg { background: #dcfce7; color: #166534; }
.bo { background: #fef3c7; color: #92400e; }
.bb { background: #dbeafe; color: #1e40af; }
.br { background: #fee2e2; color: var(--red); }

.market-table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
  font-size: 0.85rem;
  margin: 16px 0 24px;
  table-layout: auto;
}
.market-table th,
.market-table td {
  box-sizing: border-box;
  border: 1px solid var(--border);
}
.market-table th { background: var(--steel); color: #fff; padding: 9px 14px; text-align: left; font-size: 0.78rem; border-color: var(--steel); }
.market-table td { padding: 9px 14px; }
.market-table tr:nth-child(even) td { background: #f8f5f1; }

.cta-banner {
  background: linear-gradient(130deg, var(--navy), var(--steel));
  color: #fff; border-radius: 10px; padding: 34px 32px;
  margin: 40px 0; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.cta-banner h3 { font-family: var(--serif); font-size: 1.3rem; margin-bottom: 7px; }
.cta-banner p { font-size: 0.87rem; color: rgba(255,255,255,0.72); max-width: 440px; }

.project-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin: 20px 0; }
.project-card { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 16px; }
.project-card .flag { font-size: 1.4rem; margin-bottom: 8px; }
.project-card h4 { font-size: 0.9rem; font-weight: 700; color: var(--navy); margin-bottom: 5px; }
.project-card p { font-size: 0.78rem; color: var(--muted); margin: 0; }

.cluster-section { margin: 44px 0; }
.cluster-section h3 { font-family: var(--serif); font-size: 1.1rem; color: var(--navy); margin-bottom: 14px; }
.cluster-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.cluster-card { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 16px 18px; text-decoration: none; transition: border-color 0.2s, box-shadow 0.2s; }
.cluster-card:hover { border-color: var(--light-mid); box-shadow: 0 3px 12px rgba(0,0,0,0.08); }
.cluster-num { font-size: 0.68rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 4px; }
.cluster-card h4 { font-family: var(--serif); font-size: 0.92rem; color: var(--navy); font-weight: 700; margin-bottom: 5px; line-height: 1.35; }
.cluster-card p { font-size: 0.78rem; color: var(--muted); margin: 0; line-height: 1.45; flex: 1; }
.cluster-card .arr { margin-top: 10px; color: var(--mid); font-size: 0.82rem; font-weight: 600; }

.faq-item { border-bottom: 1px solid var(--border); padding: 16px 0; }
.faq-q { font-family: var(--serif); font-size: 1rem; font-weight: 700; color: var(--navy); cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 12px; user-select: none; }
.faq-q::after { content: '+'; font-size: 1.4rem; color: var(--accent); flex-shrink: 0; transition: transform 0.2s; }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { display: none; padding-top: 12px; font-size: 0.89rem; color: #333; line-height: 1.7; }
.faq-item.open .faq-a { display: block; }

.sidebar { align-self: stretch; }
.s-widget { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 20px; margin-bottom: 18px; }
.s-widget h4 { font-family: var(--serif); font-size: 0.92rem; font-weight: 700; color: var(--navy); margin-bottom: 12px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.form-field { margin-top: 10px; }
.form-field label { display: block; font-size: 0.77rem; color: var(--muted); margin-bottom: 4px; }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; border: 1px solid var(--border); border-radius: 4px; padding: 8px 10px;
  font-family: var(--sans); font-size: 0.84rem; color: var(--text); background: #fafaf8;
  transition: border-color 0.2s;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { outline: none; border-color: var(--mid); background: #fff; }
.form-field textarea { resize: vertical; min-height: 72px; }
.form-submit {
  margin-top: 14px; width: 100%; background: var(--accent); color: var(--navy);
  border: none; border-radius: 4px; padding: 10px; font-family: var(--sans);
  font-weight: 700; font-size: 0.88rem; cursor: pointer; transition: background 0.2s;
}
.form-submit:hover { background: var(--accent2); }
.cert-list { list-style: none; padding: 0; }
.cert-list li { font-size: 0.82rem; padding: 7px 0; border-bottom: 1px solid #f0ebe3; display: flex; gap: 8px; align-items: flex-start; }
.cert-list li:last-child { border-bottom: none; }
.s-link { display: block; font-size: 0.82rem; color: var(--mid); text-decoration: none; padding: 6px 0; border-bottom: 1px solid #f0ebe3; transition: color 0.15s; }
.s-link:last-child { border-bottom: none; }
.s-link:hover { color: var(--navy); }
.s-link::before { content: '-> '; }

footer { background: var(--navy); color: rgba(255,255,255,0.6); padding: 52px 24px 28px; font-size: 0.83rem; }
.footer-grid { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 36px; }
footer h5 { color: #fff; font-family: var(--serif); font-size: 0.9rem; margin-bottom: 12px; }
footer a { color: rgba(255,255,255,0.55); text-decoration: none; display: block; margin-bottom: 7px; transition: color 0.15s; }
footer a:hover { color: var(--accent); }
.footer-bottom { max-width: var(--max); margin: 0 auto; border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-trust { display: none; }
  .page-body { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .cta-banner { flex-direction: column; }
}

.toc-widget {
  position: sticky;
  top: 90px;
  max-height: calc(100vh - 110px);
  overflow-y: auto;
  z-index: 10;
}
.toc-list { list-style: none; padding: 0; margin: 0; }

.toc-h2 { margin: 0; }
.toc-h2 > .toc-row {
  display: flex; align-items: center; gap: 6px;
  padding: 9px 0;
  border-top: 1px solid #f0ebe3;
}
.toc-h2:first-child > .toc-row { border-top: none; }
.toc-h2 > .toc-row a {
  flex: 1;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--navy);
  text-decoration: none;
  line-height: 1.4;
}
.toc-h2 > .toc-row a:hover { color: var(--mid); }
.toc-h2 > .toc-row a.active { color: var(--accent2); }

.toc-toggle {
  flex-shrink: 0;
  width: 18px; height: 18px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; color: var(--muted);
  font-size: 0.7rem;
  transition: transform 0.2s;
}
.toc-h2.open .toc-toggle { transform: rotate(90deg); }
.toc-h2:not(.has-children) .toc-toggle { visibility: hidden; }

.toc-sub { list-style: none; padding: 0; margin: 0 0 6px 0; display: none; overflow: hidden; }
.toc-h2.open .toc-sub { display: block; }
.toc-sub li a {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
  text-decoration: none;
  padding: 5px 0 5px 22px;
  border-left: 2px solid var(--border);
  margin-left: 9px;
  line-height: 1.4;
  transition: color 0.15s, border-color 0.15s;
}
.toc-sub li a:hover { color: var(--mid); border-color: var(--light-mid); }
.toc-sub li a.active { color: var(--navy); font-weight: 600; border-color: var(--accent); }

.toc-widget::-webkit-scrollbar { width: 4px; }
.toc-widget::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

/* HERO INQUIRY FORM */
.hero-inner .right {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 12px;
  padding: 28px 26px 24px;
  backdrop-filter: blur(6px);
}
.form1 h4 {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.form1 > p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 18px;
  line-height: 1.55;
}
.form1 ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.form1 ul li label {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.form1 ul li label span {
  font-size: 0.72rem;
  font-weight: 600;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.form1 ul li input[type="text"],
.form1 ul li textarea {
  width: 100%;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 5px;
  padding: 9px 12px;
  font-family: var(--sans);
  font-size: 0.84rem;
  color: #fff;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
  box-sizing: border-box;
}
.form1 ul li input[type="text"]::placeholder,
.form1 ul li textarea::placeholder {
  color: rgba(255,255,255,0.35);
}
.form1 ul li input[type="text"]:focus,
.form1 ul li textarea:focus {
  border-color: rgba(251,191,36,0.6);
  background: rgba(255,255,255,0.12);
}
.form1 ul li textarea {
  resize: vertical;
  min-height: 78px;
  line-height: 1.5;
}
.form1 ul li input.wukaka {
  width: 100%;
  background: var(--accent);
  color: var(--navy);
  border: none;
  border-radius: 5px;
  padding: 12px;
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  margin-top: 4px;
}
.form1 ul li input.wukaka:hover {
  background: var(--accent2);
  transform: translateY(-1px);
}


/* ====== 第一个簇页面 ====== */
.mg-site-nav { background: var(--navy); padding: 0 24px; border-bottom: 2px solid var(--accent); position: sticky; top: 0; z-index: 100; }
.mg-nav-inner { max-width: var(--max); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; height: 56px; }
.mg-logo { color: #fff; font-family: var(--serif); font-size: 1.2rem; font-weight: 700; text-decoration: none; display: flex; align-items: center; gap: 10px; }
.mg-logo-tag { font-size: .62rem; background: var(--accent); color: var(--navy); padding: 2px 7px; border-radius: 3px; font-family: var(--sans); font-weight: 600; letter-spacing: .07em; text-transform: uppercase; }
.mg-nav-links { display: flex; align-items: center; gap: 4px; }
.mg-nav-links a { color: rgba(255,255,255,.72); text-decoration: none; font-size: .875rem; padding: 6px 12px; border-radius: 3px; transition: color .15s, background .15s; }
.mg-nav-links a:hover { color: #fff; background: rgba(255,255,255,.08); }
.mg-nav-cta { background: var(--accent) !important; color: var(--navy) !important; font-weight: 600 !important; border-radius: 4px !important; }
.mg-nav-cta:hover { background: var(--accent2) !important; }

.mg-page-hero {
  background: rgba(0,0,0,0.4)url(/shunshiglobal/2026/06/30/2398e3e0-77db-457f-a8b9-a0877312461f.png) no-repeat center center;
  background-size: cover;
  color: #fff;
  padding: 60px 24px 68px;
  position: relative;
  overflow: hidden;
  background-blend-mode: darken;
}
.mg-page-hero::before {
  content: ''; position: absolute; inset: 0;
  background: repeating-linear-gradient(135deg, transparent, transparent 40px, rgba(255,255,255,.012) 40px, rgba(255,255,255,.012) 41px);
}
.mg-hero-inner { max-width: var(--max); margin: 0 auto; position: relative; display: grid; grid-template-columns: 1fr 300px; gap: 48px; align-items: start; }
.mg-breadcrumb { font-size: .78rem; color: rgba(255,255,255,.45); margin-bottom: 14px; margin-top: 50px; }
.mg-breadcrumb a { color: rgba(255,255,255,.55); text-decoration: none; transition: color .15s; }
.mg-breadcrumb a:hover { color: #6ee7b7; }
.mg-breadcrumb span { margin: 0 5px; }
.mg-cluster-badge {
  display: inline-flex; align-items: center; gap: 7px;
  background: rgba(110,231,183,.1); border: 1px solid rgba(110,231,183,.3);
  color: #6ee7b7; font-size: .7rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; padding: 5px 14px; border-radius: 20px; margin-bottom: 18px;
}
.mg-hero-inner h1 { font-family: var(--serif); font-size: clamp(1.8rem, 3.6vw, 2.8rem); font-weight: 700; line-height: 1.2; margin-bottom: 16px; }
.mg-hero-inner h1 em { color: #6ee7b7; font-style: normal; }
.mg-hero-desc { font-size: 1rem; color: rgba(255,255,255,.78); max-width: 560px; margin-bottom: 28px; line-height: 1.7; }
.mg-hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.mg-btn-teal { background: var(--teal-mid); color: #fff; font-weight: 700; font-size: .9rem; padding: 11px 24px; border-radius: 4px; text-decoration: none; transition: background .2s; display: inline-block; }
.mg-btn-teal:hover { background: #0d9488; }
.mg-btn-ghost { background: transparent; color: rgba(255,255,255,.85); font-weight: 500; font-size: .9rem; padding: 10px 24px; border-radius: 4px; text-decoration: none; border: 1.5px solid rgba(255,255,255,.3); transition: border-color .2s; display: inline-block; }
.mg-btn-ghost:hover { border-color: rgba(255,255,255,.7); }

.mg-hero-trust { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); border-radius: 10px; padding: 20px; margin-top: 50px; }
.mg-trust-hd { font-size: .68rem; text-transform: uppercase; letter-spacing: .1em; color: rgba(255,255,255,.4); margin-bottom: 14px; }
.mg-trust-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.mg-ts strong { display: block; font-family: var(--serif); font-size: 1.5rem; color: #6ee7b7; font-weight: 700; }
.mg-ts span { font-size: .72rem; color: rgba(255,255,255,.5); text-transform: uppercase; letter-spacing: .05em; }
.mg-trust-note { margin-top: 14px; padding-top: 14px; border-top: 1px solid rgba(255,255,255,.1); font-size: .76rem; color: rgba(255,255,255,.55); line-height: 1.6; }

.mg-pillar-back {
  background: var(--teal-light); border: 1px solid #99f6e4; border-radius: 8px;
  padding: 14px 20px; display: flex; align-items: center; gap: 14px;
  text-decoration: none; transition: box-shadow .2s; margin-bottom: 40px;
}
.mg-pillar-back:hover { box-shadow: 0 3px 14px rgba(0,0,0,.09); }
.mg-pb-icon { font-size: 1.3rem; flex-shrink: 0; }
.mg-pb-text span { display: block; font-size: .74rem; color: var(--teal); text-transform: uppercase; letter-spacing: .06em; font-weight: 600; margin-bottom: 2px; }
.mg-pb-text strong { font-size: .9rem; color: var(--navy); }

.mg-page-wrap {
  position: relative;
  max-width: 1360px;
  margin: 0 auto;
  padding: 52px 24px 80px;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr) 300px;
  gap: 36px;
}

.mg-mat3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin: 24px 0;
  box-shadow: 0 4px 20px rgba(12,29,48,0.08);
}
.mg-m-col { padding: 26px 22px; }
.mg-article-body {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px 48px 48px;
  box-shadow: 0 4px 20px rgba(12,29,48,0.06);
}

.mg-article-body h2 {
  font-family: var(--serif); font-size: 1.65rem; font-weight: 700; color: var(--navy);
  margin: 44px 0 14px; padding-bottom: 10px; border-bottom: 2px solid var(--teal-mid); line-height: 1.3;
}
.mg-article-body h2:first-of-type { margin-top: 0; }
.mg-article-body h3 { font-family: var(--serif); font-size: 1.1rem; font-weight: 700; color: var(--steel-blue); margin: 28px 0 10px; }
.mg-article-body p { margin-bottom: 14px; font-size: 1.02rem; line-height: 1.7; }
.mg-article-body ul, .mg-article-body ol { padding-left: 20px; margin-bottom: 16px; }
.mg-article-body li { margin-bottom: 7px; }
.mg-article-body a { color: var(--mid); }
.mg-article-body strong { color: var(--navy); }

.mg-box { padding: 16px 20px; margin: 22px 0; border-radius: 0 6px 6px 0; border-left: 4px solid; }
.mg-box-teal { background: #f0fdfa; border-color: var(--teal-mid); }
.mg-box-amber { background: var(--amber-bg); border-color: var(--accent); }
.mg-box-green { background: var(--green-bg); border-color: var(--green); }
.mg-box-red { background: var(--red-bg); border-color: var(--red); }
.mg-box-title { font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--navy); margin-bottom: 7px; }
.mg-box p { margin: 0; font-size: .9rem; line-height: 1.65; }
.mg-box p + p { margin-top: 8px; }
.mg-m-col + .mg-m-col { border-left: 1px solid var(--border); }
.mg-m-col.mg-featured { background: linear-gradient(160deg, #f0fdfa, #e8faf6); }
.mg-m-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.mg-m-ico { font-size: 1.5rem; }
.mg-m-head h3 { font-family: var(--serif); font-size: .98rem; color: var(--navy); margin: 0; }
.mg-m-badge { font-size: .67rem; font-weight: 700; letter-spacing: .05em; padding: 2px 9px; border-radius: 10px; display: inline-block; margin-bottom: 12px; }
.mg-mb-blue { background: #dbeafe; color: #1e40af; }
.mg-mb-teal { background: #ccfbf1; color: var(--teal); }
.mg-mb-amber { background: #fef3c7; color: var(--amber); }
.mg-m-row { display: flex; justify-content: space-between; padding: 5px 0; border-bottom: 1px solid rgba(0,0,0,.06); font-size: .82rem; }
.mg-m-row:last-child { border-bottom: none; }
.mg-m-row span { color: var(--muted); }
.mg-m-row strong { color: var(--navy); text-align: right; font-weight: 600; }
.mg-badge { display: inline-block; padding: 2px 7px; border-radius: 3px; font-size: .69rem; font-weight: 700; letter-spacing: .04em; }
.mg-bg { background: #dcfce7; color: #166534; }
.mg-bo { background: #fef3c7; color: #92400e; }
.mg-bb { background: #dbeafe; color: #1e40af; }
.mg-br { background: #fee2e2; color: #991b1b; }

.mg-comp-table { width: 100%; border-collapse: collapse; font-size: .84rem; margin: 18px 0 24px; }
.mg-comp-table thead th { background: var(--navy); color: #fff; padding: 10px 13px; text-align: center; font-size: .77rem; font-weight: 600; letter-spacing: .04em; }
.mg-comp-table thead th:first-child { text-align: left; }
.mg-comp-table td { padding: 9px 13px; border-bottom: 1px solid var(--border); text-align: center; }
.mg-comp-table td:first-child { text-align: left; font-weight: 600; color: var(--navy); }
.mg-comp-table tr:nth-child(even) td { background: #f8f5f1; }
.mg-comp-table tr:hover td { background: #f0fdfa; }
.mg-check { color: #16a34a; font-weight: 700; font-size: 1.05rem; }
.mg-cross { color: #dc2626; font-weight: 700; font-size: 1.05rem; }
.mg-half { color: #d97706; font-weight: 700; font-size: 1.05rem; }

.mg-decision-steps { margin: 22px 0; display: flex; flex-direction: column; gap: 0; }
.mg-d-step { display: grid; grid-template-columns: 36px 1fr; gap: 14px; padding: 18px 0; border-bottom: 1px dashed var(--border); }
.mg-d-step:last-child { border-bottom: none; }
.mg-d-num { width: 36px; height: 36px; background: var(--teal); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: .85rem; flex-shrink: 0; margin-top: 2px; }
.mg-d-body h4 { font-family: var(--serif); font-size: .95rem; font-weight: 700; color: var(--navy); margin-bottom: 5px; }
.mg-d-body p { font-size: .85rem; color: #333; margin: 0; line-height: 1.6; }
.mg-d-tags { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 8px; }
.mg-d-tag { font-size: .72rem; background: #f0fdfa; border: 1px solid #99f6e4; color: var(--teal); padding: 2px 10px; border-radius: 12px; font-weight: 600; }

.mg-app-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 13px; margin: 20px 0; }
.mg-app-card { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 16px; transition: box-shadow .2s, transform .2s; }
.mg-app-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,.09); transform: translateY(-2px); }
.mg-app-ico { font-size: 1.4rem; margin-bottom: 8px; }
.mg-app-mat { font-size: .68rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; color: var(--teal); margin-bottom: 5px; }
.mg-app-card h4 { font-family: var(--serif); font-size: .88rem; font-weight: 700; color: var(--navy); margin-bottom: 5px; }
.mg-app-card p { font-size: .79rem; color: var(--muted); margin: 0; line-height: 1.5; }

.mg-cluster-nav { margin: 48px 0 0; }
.mg-cluster-nav h3 { font-family: var(--serif); font-size: 1.05rem; color: var(--navy); margin-bottom: 4px; }
.mg-cluster-nav p { font-size: .84rem; color: var(--muted); margin-bottom: 16px; }
.mg-cn-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.mg-cn-card { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 16px 18px; text-decoration: none; transition: border-color .2s, box-shadow .2s; }
.mg-cn-card:hover { border-color: var(--teal-mid); box-shadow: 0 3px 12px rgba(0,0,0,.08); }
.mg-cn-card.mg-current { border-color: var(--teal-mid); background: #f0fdfa; }
.mg-cn-num { font-size: .67rem; color: var(--muted); text-transform: uppercase; letter-spacing: .1em; margin-bottom: 4px; }
.mg-cn-card h4 { font-family: var(--serif); font-size: .88rem; color: var(--navy); font-weight: 700; margin-bottom: 5px; line-height: 1.35; }
.mg-cn-card p { font-size: .77rem; color: var(--muted); margin: 0; line-height: 1.4; flex: 1; }
.mg-cn-arr { margin-top: 10px; font-size: .8rem; color: var(--teal); font-weight: 600; }

.mg-kw-section { margin: 48px 0 0; border-top: 2px solid var(--teal-mid); padding-top: 32px; }
.mg-kw-section-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 8px; }
.mg-kw-section-head h3 { font-family: var(--serif); font-size: 1.15rem; color: var(--navy); }
.mg-kw-section-head span { font-size: .78rem; background: var(--teal-light); color: var(--teal); padding: 2px 10px; border-radius: 10px; font-weight: 600; }
.mg-kw-section > p { font-size: .85rem; color: var(--muted); margin-bottom: 18px; line-height: 1.55; }
.mg-kw-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 13px; }
.mg-kw-card { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 16px; text-decoration: none; display: flex; flex-direction: column; transition: border-color .2s, box-shadow .2s; }
.mg-kw-card:hover { border-color: var(--teal-mid); box-shadow: 0 3px 12px rgba(0,0,0,.07); }
.mg-kw-tag { font-size: .67rem; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 5px; }
.mg-kw-card h4 { font-family: var(--serif); font-size: .88rem; font-weight: 700; color: var(--navy); line-height: 1.35; margin-bottom: 6px; }
.mg-kw-card p { font-size: .77rem; color: var(--muted); margin: 0; line-height: 1.45; flex: 1; }
.mg-kw-arr { font-size: .77rem; color: var(--teal); font-weight: 600; margin-top: 10px; display: block; }

.mg-cta-banner {
  background: linear-gradient(130deg, #082f1e, #0f4a32);
  color: #fff; border-radius: 10px; padding: 32px 36px;
  margin: 44px 0; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.mg-cta-banner h3 { font-family: var(--serif); font-size: 1.25rem; margin-bottom: 7px; }
.mg-cta-banner p { font-size: .87rem; color: rgba(255,255,255,.72); max-width: 420px; margin: 0; }

.mg-sidebar {
  position: sticky;
  top: 90px;
}

.mg-sw { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 18px; margin-bottom: 14px; }
.mg-sw h4 { font-family: var(--serif); font-size: .9rem; font-weight: 700; color: var(--navy); margin-bottom: 12px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.mg-ff { margin-top: 10px; }
.mg-ff label { display: block; font-size: .76rem; color: var(--muted); margin-bottom: 4px; }
.mg-ff input, .mg-ff select, .mg-ff textarea { width: 100%; border: 1px solid var(--border); border-radius: 4px; padding: 8px 10px; font-family: var(--sans); font-size: .83rem; color: var(--text); background: #fafaf8; transition: border-color .2s; }
.mg-ff input:focus, .mg-ff select:focus, .mg-ff textarea:focus { outline: none; border-color: var(--teal-mid); background: #fff; }
.mg-ff textarea { resize: vertical; min-height: 68px; }
.mg-f-submit { margin-top: 13px; width: 100%; background: var(--teal); color: #fff; border: none; border-radius: 4px; padding: 10px; font-family: var(--sans); font-weight: 700; font-size: .87rem; cursor: pointer; transition: background .2s; }
.mg-f-submit:hover { background: #0d766e; }
.mg-mat-links a { display: flex; align-items: center; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid #f0ebe3; text-decoration: none; font-size: .82rem; color: var(--mid); }
.mg-mat-links a:last-child { border-bottom: none; }
.mg-mat-links a:hover { color: var(--navy); }
.mg-mat-links .mg-bdg { font-size: .67rem; padding: 1px 7px; border-radius: 10px; }
.mg-s-link { display: block; font-size: .82rem; color: var(--mid); text-decoration: none; padding: 6px 0; border-bottom: 1px solid #f0ebe3; }
.mg-s-link:last-child { border-bottom: none; }
.mg-s-link:hover { color: var(--navy); }
.mg-s-link::before { content: '> '; }

.mg-footer { background: var(--navy); color: rgba(255,255,255,.6); padding: 52px 24px 28px; font-size: .83rem; }
.mg-fg { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 36px; }
.mg-footer h5 { color: #fff; font-family: var(--serif); font-size: .9rem; margin-bottom: 12px; }
.mg-footer a { color: rgba(255,255,255,.55); text-decoration: none; display: block; margin-bottom: 7px; transition: color .15s; }
.mg-footer a:hover { color: var(--accent); }
.mg-fb { max-width: var(--max); margin: 0 auto; border-top: 1px solid rgba(255,255,255,.1); padding-top: 20px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

@media (max-width: 900px) {
  .mg-hero-inner { grid-template-columns: 1fr; }
  .mg-toc-sidebar { display: none; }
  .mg-hero-trust { display: none; }
  .mg-page-wrap { grid-template-columns: 1fr; }
  .mg-sidebar { position: static; }
  .mg-mat3 { grid-template-columns: 1fr; }
  .mg-fg { grid-template-columns: 1fr 1fr; }
  .mg-nav-links { display: none; }
}
@media (max-width: 520px) {
  .mg-fg { grid-template-columns: 1fr; }
  .mg-cta-banner { flex-direction: column; }
}

.mg-toc-wrap .toc-widget {
  position: static;
  max-height: none;
  overflow-y: visible;
}
.mg-toc-wrap .toc-list {
  max-height: 60vh;
  overflow-y: auto;
}
.mg-toc-wrap .toc-list::-webkit-scrollbar { width: 4px; }
.mg-toc-wrap .toc-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.mg-toc-sidebar {
  position: sticky;
  top: 90px;
  max-height: calc(100vh - 110px);
  overflow-y: auto;
}
.mg-toc-sidebar .mg-sw {
  margin-bottom: 0;
}
.mg-toc-sidebar::-webkit-scrollbar { width: 4px; }
.mg-toc-sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

/* ====== 簇页面2: Installation & Specs ====== */
.jump-nav {
  background: #f0f4f8; border-bottom: 1px solid #dde4ec;
  padding: 10px 40px; font-size: 13px; color: #5a6a7a;
  display: flex; flex-wrap: wrap; gap: 4px 6px; align-items: center;
}
.jump-nav span { color: #8a9aaa; margin-right: 4px; }
.jump-nav a { color: #1a5276; text-decoration: none; padding: 3px 8px; border-radius: 3px; white-space: nowrap; transition: background 0.15s; }
.jump-nav a:hover { background: #dde4ec; }

.c2-breadcrumb { padding: 12px 40px; font-size: 13px; color: #8a9aaa; border-bottom: 1px solid #eef0f3; }
.c2-breadcrumb a { color: #1a5276; text-decoration: none; }
.c2-breadcrumb a:hover { text-decoration: underline; }
.c2-breadcrumb span { margin: 0 6px; }

.page-hero {
    background: linear-gradient(150deg, rgba(0,0,0,.0) 0%, rgba(15,74,50,.85) 55%, rgba(0,0,0,5) 100%), url(/shunshiglobal/2026/07/02/banner3.png) center center / cover no-repeat;
    color: #fff;
    padding: 60px 24px 68px;
    position: relative;
    overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background: repeating-linear-gradient(135deg, transparent, transparent 40px, rgba(255,255,255,.012) 40px, rgba(255,255,255,.012) 41px);
}
.c2-hero-inner { max-width: var(--max); margin: 0 auto; position: relative; display: grid; grid-template-columns: 1fr 300px; gap: 48px; align-items: start; margin-top: 50px;}
.hero-breadcrumb { font-size: .78rem; color: rgba(255,255,255,.45); margin-bottom: 14px; }
.hero-breadcrumb a { color: rgba(255,255,255,.55); text-decoration: none; transition: color .15s; }
.hero-breadcrumb a:hover { color: #6ee7b7; }
.hero-breadcrumb span { margin: 0 5px; }
.cluster-badge {
  display: inline-flex; align-items: center; gap: 7px;
  background: rgba(110,231,183,.1); border: 1px solid rgba(110,231,183,.3);
  color: #6ee7b7; font-size: .7rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; padding: 5px 14px; border-radius: 20px; margin-bottom: 18px;
}
.c2-hero-inner h1 { font-family: var(--serif); font-size: clamp(1.8rem, 3.6vw, 2.8rem); font-weight: 700; line-height: 1.2; margin-bottom: 16px; }
.c2-hero-inner h1 em { color: #6ee7b7; font-style: normal; }
.hero-desc { font-size: 1rem; color: rgba(255,255,255,.78); max-width: 560px; margin-bottom: 28px; line-height: 1.7; }
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-teal { background: var(--teal-mid); color: #fff; font-weight: 700; font-size: .9rem; padding: 11px 24px; border-radius: 4px; text-decoration: none; transition: background .2s; display: inline-block; }
.btn-teal:hover { background: #0d9488; }
.c2-btn-ghost { background: transparent; color: rgba(255,255,255,.85); font-weight: 500; font-size: .9rem; padding: 10px 24px; border-radius: 4px; text-decoration: none; border: 1.5px solid rgba(255,255,255,.3); transition: border-color .2s; display: inline-block; }
.c2-btn-ghost:hover { border-color: rgba(255,255,255,.7); }

.c2-hero-trust { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); border-radius: 10px; padding: 20px; }
.trust-hd { font-size: .68rem; text-transform: uppercase; letter-spacing: .1em; color: rgba(255,255,255,.4); margin-bottom: 14px; }
.trust-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.ts strong { display: block; font-family: var(--serif); font-size: 1.5rem; color: #6ee7b7; font-weight: 700; }
.ts span { font-size: .72rem; color: rgba(255,255,255,.5); text-transform: uppercase; letter-spacing: .05em; }
.trust-note { margin-top: 14px; padding-top: 14px; border-top: 1px solid rgba(255,255,255,.1); font-size: .76rem; color: rgba(255,255,255,.55); line-height: 1.6; }

.quick-answer { background: #fff; border: 2px solid #1a5276; border-radius: 10px; padding: 24px 28px; margin: 32px 0; }
.quick-answer-label { font-size: .7rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: #1a5276; margin-bottom: 10px; }
.quick-answer h3 { font-size: 1rem; font-weight: 700; color: #0d1b2a; margin-bottom: 12px; }
.qa-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; }
.qa-item { background: #f5f7fa; border-radius: 6px; padding: 12px 14px; }
.qa-item strong { display: block; font-size: .82rem; color: #1a5276; margin-bottom: 3px; }
.qa-item span { font-size: .82rem; color: #344a5e; }

.pillar-banner {
  background: #f5f7fa; border: 1px solid #dde4ec; border-left: 4px solid #1a5276;
  padding: 14px 20px;   margin: 28px auto; max-width: 1180px; border-radius: 0 6px 6px 0;
  display: flex; align-items: center; gap: 12px; font-size: 14px;
}
.pillar-banner-tag { background: #1a5276; color: #fff; font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; padding: 3px 9px; border-radius: 3px; white-space: nowrap; flex-shrink: 0; }
.pillar-banner a { color: #1a5276; text-decoration: none; font-weight: 600; }
.pillar-banner a:hover { text-decoration: underline; }

.eeat-bar { background: #fff; border: 1px solid #e8edf3; border-radius: 8px; margin: 0 auto; max-width: 1180px; padding: 20px 28px; display: flex; align-items: flex-start; gap: 20px; flex-wrap: wrap; }
.eeat-avatar { width: 52px; height: 52px; border-radius: 50%; background: linear-gradient(135deg, #1a5276, #2980b9); display: flex; align-items: center; justify-content: center; font-size: 20px; color: #fff; font-weight: 800; flex-shrink: 0; }
.eeat-info { flex: 1; min-width: 200px; }
.eeat-info strong { display: block; font-size: 15px; font-weight: 700; color: #1a2332; margin-bottom: 2px; }
.eeat-info p { font-size: 13px; color: #6a7a8a; line-height: 1.5; margin: 0; }
.eeat-badges { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.eeat-badge { font-size: 11px; font-weight: 600; letter-spacing: .05em; color: #1a5276; background: #eaf2f8; border: 1px solid #bee3f8; padding: 4px 10px; border-radius: 4px; }
.eeat-updated { font-size: 12px; color: #8a9aaa; margin-top: 8px; width: 100%; }

.content-wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 52px 40px 80px;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  align-items: start;
  position: relative;
}
.main-col { min-width: 0; }
.content-wrap h2 { font-size: 22px; font-weight: 700; color: #0d1b2a; margin: 52px 0 16px; padding-bottom: 12px; border-bottom: 2px solid #eef0f3; scroll-margin-top: 20px; }
.content-wrap h2:first-of-type { margin-top: 0; }
.content-wrap h3 { font-size: 17px; font-weight: 700; color: #1a3a52; margin: 32px 0 10px; }
.content-wrap p { margin-bottom: 18px; color: #344a5e; }
.content-wrap p:last-child { margin-bottom: 0; }
.content-wrap strong { color: #1a2332; }

.callout { border-radius: 0 8px 8px 0; padding: 18px 22px; margin: 22px 0; font-size: 14.5px; line-height: 1.65; }
.callout strong { display: block; margin-bottom: 6px; font-size: 13px; text-transform: uppercase; letter-spacing: .06em; }
.callout.warning { background: #fff8f0; border-left: 4px solid #c8510a; color: #5a3010; }
.callout.warning strong { color: #c8510a; }
.callout.info { background: #f0f6fc; border-left: 4px solid #1a5276; color: #1a3252; }
.callout.info strong { color: #1a5276; }
.callout.success { background: #f0faf4; border-left: 4px solid #1a7a3c; color: #1a3a28; }
.callout.success strong { color: #1a7a3c; }

.c2-table-wrap { overflow-x: auto; margin: 20px 0 32px; border-radius: 8px; border: 1px solid #dde4ec; box-shadow: 0 1px 4px rgba(0,0,0,.04); }
.c2-table-wrap table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
@media (max-width: 700px) {
  .c2-table-wrap table {
    width: auto;
    min-width: 640px;
    table-layout: auto;
    box-sizing: border-box;
  }
  .c2-table-wrap thead th,
  .c2-table-wrap tbody td {
    white-space: nowrap; 
  }
  .c2-table-wrap thead th:first-child,
  .c2-table-wrap tbody td:first-child {
    min-width: 110px;      
  }
}
.c2-table-wrap caption { caption-side: top; text-align: left; font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: #5a6a7a; padding: 10px 15px 6px; background: #f7f9fb; border-bottom: 1px solid #dde4ec; }
.c2-table-wrap thead tr { background: #0d1b2a; }
.c2-table-wrap thead th { color: rgba(255,255,255,.85); font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; padding: 13px 15px; text-align: left; white-space: nowrap; }
.c2-table-wrap tbody tr:nth-child(odd) { background: #fff; }
.c2-table-wrap tbody tr:nth-child(even) { background: #f7f9fb; }
.c2-table-wrap tbody tr:hover { background: #eef4fa; }
.c2-table-wrap tbody td { padding: 11px 15px; color: #344a5e; border-bottom: 1px solid #eef0f3; line-height: 1.5; }
.c2-table-wrap tbody tr:last-child td { border-bottom: none; }
.c2-table-wrap tbody td:first-child { font-weight: 600; color: #1a2332; }
.tag-popular { display: inline-block; background: #c8510a; color: #fff; font-size: 9px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; padding: 2px 6px; border-radius: 3px; margin-left: 6px; vertical-align: middle; }
.tag-yes { color: #1a7a3c; font-weight: 700; }
.tag-no { color: #c0392b; font-weight: 700; }
.tag-cond { color: #c8510a; font-weight: 600; }

ul.content-list { list-style: none; margin: 12px 0 22px; display: flex; flex-direction: column; gap: 9px; }
ul.content-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: #344a5e; line-height: 1.65; }
ul.content-list li::before { content: ""; flex-shrink: 0; width: 6px; height: 6px; border-radius: 50%; background: #1a5276; margin-top: 9px; }

ol.steps-list { list-style: none; margin: 16px 0 24px; display: flex; flex-direction: column; gap: 16px; counter-reset: step-counter; }
ol.steps-list li { display: flex; gap: 16px; align-items: flex-start; font-size: 15px; color: #344a5e; line-height: 1.65; counter-increment: step-counter; }
ol.steps-list li::before { content: counter(step-counter); flex-shrink: 0; width: 30px; height: 30px; border-radius: 50%; background: #0d1b2a; color: #fff; font-size: 13px; font-weight: 700; display: flex; align-items: center; justify-content: center; margin-top: 2px; }

.decision-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; margin: 22px 0 32px; }
.decision-card { background: #fff; border: 1.5px solid #dde4ec; border-radius: 10px; padding: 22px 20px; transition: border-color .2s, box-shadow .2s; }
.decision-card:hover { border-color: #1a5276; box-shadow: 0 4px 14px rgba(26,82,118,.1); }
.decision-card-step { font-size: 10px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: #c8510a; margin-bottom: 8px; }
.decision-card h4 { font-size: 15px; font-weight: 700; color: #0d1b2a; margin-bottom: 10px; line-height: 1.3; }
.decision-card p { font-size: 13.5px; color: #5a6a7a; line-height: 1.6; margin: 0; }
.decision-card .verdict { margin-top: 12px; padding-top: 12px; border-top: 1px solid #eef0f3; font-size: 12.5px; color: #1a5276; font-weight: 600; }

.app-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; margin: 22px 0 32px; }
.app-card { background: #f7f9fb; border: 1px solid #dde4ec; border-radius: 8px; padding: 20px; }
.app-card-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.app-icon { width: 36px; height: 36px; border-radius: 6px; background: #0d1b2a; color: #fff; font-size: 16px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.app-card h4 { font-size: 14px; font-weight: 700; color: #0d1b2a; margin: 0; }
.app-card p { font-size: 13px; color: #5a6a7a; line-height: 1.55; margin: 0; }
.app-card .rec { margin-top: 10px; padding-top: 10px; border-top: 1px solid #dde4ec; font-size: 12px; font-weight: 600; color: #1a5276; }

.substrate-table { width: 100%; border-collapse: collapse; margin: 20px 0 32px; font-size: 14px; }
@media (max-width: 700px) {
  .substrate-table {
    min-width: 640px;
    display: block;
    overflow-x: auto;
    box-sizing: border-box;
  }
  .substrate-table th,
  .substrate-table td {
    white-space: nowrap;
  }
  .substrate-table th:first-child,
  .substrate-table td:first-child {
    min-width: 130px;
  }
}
.substrate-table th { background: #0d1b2a; color: rgba(255,255,255,.85); padding: 12px 16px; text-align: left; font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
.substrate-table td { padding: 11px 16px; border-bottom: 1px solid #eef0f3; color: #344a5e; vertical-align: top; }
.substrate-table tr:nth-child(odd) td { background: #fff; }
.substrate-table tr:nth-child(even) td { background: #f7f9fb; }
.substrate-table td:first-child { font-weight: 700; color: #1a2332; white-space: nowrap; }

.cluster-nav { background: #f5f7fa; border: 1px solid #dde4ec; border-radius: 10px; padding: 28px 28px 24px; margin: 52px 0; }
.cluster-nav-header { margin-bottom: 20px; }
.cluster-nav-header h3 { font-size: 16px; font-weight: 700; color: #0d1b2a; margin: 0 0 4px; }
.cluster-nav-header p { font-size: 13px; color: #8a9aaa; margin: 0; }
.cluster-nav-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; }
.cn-item { background: #fff; border: 1.5px solid #dde4ec; border-radius: 8px; padding: 14px 16px; text-decoration: none; display: block; transition: border-color .2s; }
.cn-item:hover { border-color: #1a5276; }
.cn-item.active { border-color: #c8510a; background: #fff8f5; }
.cn-item.pillar-item { border-color: #1a5276; background: #eaf2f8; }
.cn-label { font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: #8a9aaa; margin-bottom: 5px; }
.cn-item.active .cn-label { color: #c8510a; }
.cn-item.pillar-item .cn-label { color: #1a5276; }
.cn-title { font-size: 13px; font-weight: 700; color: #1a2332; line-height: 1.35; margin-bottom: 4px; }
.cn-desc { font-size: 12px; color: #7a8a9a; line-height: 1.45; }

.articles-section { margin: 48px 0; }
.articles-section-header { display: flex; align-items: baseline; gap: 12px; margin-bottom: 6px; }
.articles-section-header h3 { margin: 0; }
.articles-count { font-size: 12px; font-weight: 600; background: #0d1b2a; color: #fff; padding: 2px 8px; border-radius: 3px; }
.articles-section > p { font-size: 13.5px; color: #7a8a9a; margin-bottom: 18px; }
.articles-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.article-card { background: #fff; border: 1.5px solid #dde4ec; border-radius: 10px; padding: 22px; display: flex; flex-direction: column; gap: 8px; transition: border-color .2s, box-shadow .2s; }
.article-card:hover { border-color: #1a5276; box-shadow: 0 4px 14px rgba(0,0,0,.07); }
.article-tag { font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: #c8510a; background: #fff0e8; border: 1px solid #f5c8a8; padding: 2px 8px; border-radius: 3px; align-self: flex-start; }
.article-card h4 { font-size: 15px; font-weight: 700; color: #0d1b2a; line-height: 1.35; margin: 0; }
.article-card p { font-size: 13px; color: #5a6a7a; line-height: 1.55; flex: 1; margin: 0; }
.article-card a { font-size: 13px; font-weight: 600; color: #1a5276; text-decoration: none; margin-top: auto; display: flex; align-items: center; gap: 4px; }
.article-card a:hover { text-decoration: underline; }

.stats-row { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; margin: 20px 0 32px; }
.stat-box { background: #fff; border: 1px solid #dde4ec; border-radius: 8px; padding: 18px 16px; text-align: center; }
.stat-box strong { display: block; font-family: var(--serif); font-size: 1.8rem; color: #0d1b2a; font-weight: 700; line-height: 1; margin-bottom: 6px; }
.stat-box span { font-size: .75rem; color: #7a8a9a; text-transform: uppercase; letter-spacing: .05em; }

.doc-checklist { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 10px; margin: 18px 0 28px; }
.doc-item { display: flex; gap: 12px; align-items: flex-start; background: #f7f9fb; border: 1px solid #dde4ec; border-radius: 6px; padding: 12px 14px; }
.doc-check { flex-shrink: 0; width: 22px; height: 22px; border-radius: 4px; background: #1a7a3c; color: #fff; font-size: 13px; display: flex; align-items: center; justify-content: center; font-weight: 700; margin-top: 1px; }
.doc-info strong { display: block; font-size: 13.5px; font-weight: 700; color: #1a2332; margin-bottom: 2px; }
.doc-info span { font-size: 12.5px; color: #6a7a8a; line-height: 1.45; }

.faq-section { margin: 48px 0; }
.faq-section h2 { margin-top: 0; }
.c2-faq-item { border: 1px solid #dde4ec; border-radius: 8px; margin-bottom: 8px; overflow: hidden; }
.c2-faq-q { background: #f7f9fb; padding: 15px 20px; font-size: 15px; font-weight: 600; color: #0d1b2a; cursor: pointer; display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; user-select: none; line-height: 1.4; }
.c2-faq-q::after { content: "+"; font-size: 22px; line-height: 1; color: #1a5276; flex-shrink: 0; font-weight: 300; }
.c2-faq-q.open { background: #eef4fa; }
.c2-faq-q.open::after { content: "-"; }
.c2-faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease, padding .3s ease; font-size: 15px; color: #344a5e; line-height: 1.72; }
.c2-faq-a.open { max-height: 600px; padding: 16px 20px; }

.cta-section {
  background: linear-gradient(135deg, #0d1b2a 0%, #1a2f45 100%);
  border-radius: 12px; padding: 48px 44px; margin: 56px 0 0;
  display: grid; grid-template-columns: 1fr auto; gap: 28px; align-items: center;
}
.cta-section h2 { font-size: 24px; color: #fff; margin: 0; border: none; padding: 0; }
.cta-section p { color: rgba(255,255,255,.52); font-size: 15px; margin: 8px 0 0; }
.cta-col a { display: inline-block; background: #c8510a; color: #fff; font-size: 14px; font-weight: 700; padding: 15px 28px; border-radius: 6px; text-decoration: none; white-space: nowrap; transition: background .2s; }
.cta-col a:hover { background: #a84208; }

hr.rule { border: none; border-top: 1.5px solid #eef0f3; margin: 48px 0; }

@media (max-width: 700px) {
  .jump-nav, .c2-breadcrumb, .pillar-banner, .eeat-bar, .content-wrap { padding-left: 20px; padding-right: 20px; }
  .page-hero { padding: 40px 20px 48px; }
  .c2-hero-inner { grid-template-columns: 1fr; }
  .c2-hero-trust { display: none; }
  .cta-section { grid-template-columns: 1fr; padding: 32px 24px; }
  .eeat-bar { flex-direction: column; }
  .pillar-banner { margin-left: 20px; margin-right: 20px; }
}

.side-col {
  grid-column: 2;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: 24px;
  align-self: start;       
  max-height: calc(100vh - 48px);
  overflow: hidden;  
}
.side-toc {
  flex: 1 1 auto;
  min-height: 0;           
  overflow-y: auto !important;
}
.side-cta {
  flex-shrink: 0;       
}
/*.side-toc {
  background: #f7f9fb;
  border: 1px solid #dde4ec;
  border-radius: 8px;
  padding: 18px 20px;
  font-size: 13px;
  overflow-y: auto !important;
  overflow-x: hidden !important;
  box-sizing: border-box;
}*/
.side-toc-title {
  font-size: 11px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: #8a9aaa; margin-bottom: 10px;
}
.side-toc ul { list-style: none; margin: 0; padding: 0; }
.side-toc .toc-h2 { margin-bottom: 2px; }
.side-toc .toc-row {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 0; cursor: pointer;
}
.side-toc .toc-toggle { font-size: 10px; color: #8a9aaa; width: 10px; }
.side-toc .toc-h2:not(.has-children) .toc-toggle { visibility: hidden; }
.side-toc a {
  color: #344a5e; text-decoration: none; font-size: 13px; line-height: 1.4;
}
.side-toc a:hover, .side-toc a.active { color: #1a5276; font-weight: 600; }
.side-toc .toc-sub {
  list-style: none; margin: 0 0 4px 16px; padding: 0;
  max-height: 0; overflow: hidden; transition: max-height .25s ease;
}
.side-toc .toc-h2.open .toc-sub { max-height: 500px; }
.side-toc .toc-sub li { padding: 4px 0; }

.side-cta {
  background: linear-gradient(135deg, #0d1b2a, #1a2f45);
  border-radius: 8px; padding: 20px; color: #fff;
  position: relative;
  z-index: 2;              /* 新增：保证CTA卡片始终在上层显示 */
  flex-shrink: 0;   
}
.side-cta strong { display: block; margin-bottom: 6px; font-size: 14px; }
.side-cta p { font-size: 13px; color: rgba(255,255,255,.7); margin: 0 0 12px; }
.side-cta a {
  display: inline-block; background: #c8510a; color: #fff;
  font-size: 13px; font-weight: 700; padding: 10px 18px;
  border-radius: 5px; text-decoration: none;
}

/* 手机端退回单栏，侧边栏放到内容下面 */
@media (max-width: 900px) {
  .content-wrap { grid-template-columns: 1fr; }
  .side-col { display: none !important; }
}

/* ====== 簇页面3: Industry Applications (c3-) ====== */

.c3-site-nav { background: #0c1d30; padding: 0 24px; border-bottom: 2px solid #d97706; position: sticky; top: 0; z-index: 100; }
.c3-nav-inner { max-width: 1120px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; height: 56px; }
.c3-logo { color: #fff; font-family: 'Playfair Display', Georgia, serif; font-size: 1.2rem; font-weight: 700; text-decoration: none; display: flex; align-items: center; gap: 10px; }
.c3-logo-tag { font-size: .62rem; background: #d97706; color: #0c1d30; padding: 2px 7px; border-radius: 3px; font-family: 'Source Sans 3', sans-serif; font-weight: 600; letter-spacing: .07em; text-transform: uppercase; }
.c3-nav-links { display: flex; align-items: center; gap: 4px; }
.c3-nav-links a { color: rgba(255,255,255,.72); text-decoration: none; font-size: .875rem; padding: 6px 12px; border-radius: 3px; transition: color .15s, background .15s; }
.c3-nav-links a:hover { color: #fff; background: rgba(255,255,255,.08); }
.c3-nav-cta { background: #d97706 !important; color: #0c1d30 !important; font-weight: 600 !important; border-radius: 4px !important; }
.c3-nav-cta:hover { background: #b45309 !important; }

.c3-page-layout { display: grid; grid-template-columns: 1fr 320px; gap: 0; max-width: 1280px; margin: 0 auto; padding: 0 40px 80px; align-items: start; }
.c3-main-col { padding: 40px 40px 40px 0; min-width: 0; }
.c3-sidebar { padding: 40px 0 40px 32px; border-left: 1px solid #eef0f3; position: sticky; top: 20px; max-height: calc(100vh - 40px); overflow-y: auto; scrollbar-width: none; }
.c3-sidebar::-webkit-scrollbar { display: none; }

.c3-breadcrumb { padding: 11px 40px; font-size: 13px; color: #8a9aaa; border-bottom: 1px solid #eef0f3; }
.c3-breadcrumb a { color: #1a5276; text-decoration: none; }
.c3-breadcrumb a:hover { text-decoration: underline; }
.c3-breadcrumb span { margin: 0 6px; }

.c3-hero { background: linear-gradient(135deg, #0d1b2a 0%, #1a2f45 55%, #162840 100%); color: #fff; padding: 68px 40px 60px; position: relative; overflow: hidden; }
.c3-hero::before { content: ""; position: absolute; right: -80px; top: -80px; width: 440px; height: 440px; border-radius: 50%; border: 80px solid rgba(255,255,255,0.03); pointer-events: none; }
.c3-hero::after { content: ""; position: absolute; left: -40px; bottom: -60px; width: 280px; height: 280px; border-radius: 50%; border: 50px solid rgba(200,81,10,0.07); pointer-events: none; }
.c3-hero-cluster-label { display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: #b0c4d8; margin-bottom: 18px; padding: 4px 12px; border: 1px solid rgba(255,255,255,0.12); border-radius: 3px; }
.c3-hero h1 { font-size: clamp(24px, 3.6vw, 46px); font-weight: 800; line-height: 1.12; max-width: 700px; margin-bottom: 18px; letter-spacing: -0.01em; }
.c3-hero h1 em { font-style: italic; font-weight: 300; color: #7fb3d3; }
.c3-hero-intro { font-size: 16px; color: rgba(255,255,255,0.6); max-width: 600px; line-height: 1.72; margin-bottom: 30px; }
.c3-hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 44px; }
.c3-btn-primary { background: #c8510a; color: #fff; font-size: 14px; font-weight: 600; padding: 12px 22px; border-radius: 5px; text-decoration: none; display: inline-block; }
.c3-btn-primary:hover { background: #a84208; }
.c3-btn-secondary { background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.78); font-size: 14px; font-weight: 500; padding: 12px 22px; border-radius: 5px; text-decoration: none; display: inline-block; border: 1px solid rgba(255,255,255,0.15); }
.c3-btn-secondary:hover { background: rgba(255,255,255,0.14); }
.c3-hero-stat strong { display: block; font-size: 26px; font-weight: 800; color: #fff; line-height: 1; margin-bottom: 4px; }
.c3-hero-stat span { font-size: 12px; color: rgba(255,255,255,0.45); letter-spacing: 0.04em; }
.c3-hero-stat .c3-sub-note { font-size: 11px; color: rgba(255,255,255,0.3); margin-top: 14px; font-style: italic; }

.c3-pillar-banner { background: #f5f7fa; border: 1px solid #dde4ec; border-left: 4px solid #1a5276; padding: 13px 20px; margin: 24px 40px; border-radius: 0 6px 6px 0; display: flex; align-items: center; gap: 12px; font-size: 14px; }
.c3-pillar-banner-tag { background: #1a5276; color: #fff; font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; padding: 3px 9px; border-radius: 3px; white-space: nowrap; flex-shrink: 0; }
.c3-pillar-banner a { color: #1a5276; text-decoration: none; font-weight: 600; }
.c3-pillar-banner a:hover { text-decoration: underline; }

.c3-eeat-bar { background: #fff; border: 1px solid #e8edf3; border-radius: 8px; margin: 0 40px 28px; padding: 18px 24px; display: flex; align-items: flex-start; gap: 18px; flex-wrap: wrap; }
.c3-eeat-avatar { width: 48px; height: 48px; border-radius: 50%; background: linear-gradient(135deg, #1a5276, #2980b9); display: flex; align-items: center; justify-content: center; font-size: 18px; color: #fff; font-weight: 800; flex-shrink: 0; }
.c3-eeat-info { flex: 1; min-width: 180px; }
.c3-eeat-info strong { display: block; font-size: 14px; font-weight: 700; color: #1a2332; margin-bottom: 2px; }
.c3-eeat-info p { font-size: 13px; color: #6a7a8a; line-height: 1.5; margin: 0; }
.c3-eeat-badges { display: flex; flex-wrap: wrap; gap: 7px; }
.c3-eeat-badge { font-size: 11px; font-weight: 600; color: #1a5276; background: #eaf2f8; border: 1px solid #bee3f8; padding: 3px 9px; border-radius: 4px; }
.c3-eeat-updated { font-size: 12px; color: #8a9aaa; margin-top: 7px; width: 100%; }

/* 正文排版:统一收进 .c3-industry-page 容器,避免影响全站 h2/h3/p */
.c3-industry-page h2 { font-size: 21px; font-weight: 700; color: #0d1b2a; margin: 52px 0 14px; padding-bottom: 11px; border-bottom: 2px solid #eef0f3; scroll-margin-top: 20px; }
.c3-industry-page h2:first-of-type { margin-top: 0; }
.c3-industry-page h3 { font-size: 16px; font-weight: 700; color: #1a3a52; margin: 28px 0 9px; }
.c3-industry-page h4 { font-size: 14px; font-weight: 700; color: #0d1b2a; margin: 0 0 6px; }
.c3-industry-page p { margin-bottom: 16px; color: #344a5e; line-height: 1.75; }
.c3-industry-page p:last-child { margin-bottom: 0; }
.c3-industry-page strong { color: #1a2332; }

.c3-callout { border-radius: 0 8px 8px 0; padding: 16px 20px; margin: 20px 0; font-size: 14.5px; line-height: 1.65; }
.c3-callout-title { display: block; margin-bottom: 5px; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; }
.c3-callout.c3-warning { background: #fff8f0; border-left: 4px solid #c8510a; color: #5a3010; }
.c3-callout.c3-warning .c3-callout-title { color: #c8510a; }
.c3-callout.c3-info { background: #f0f6fc; border-left: 4px solid #1a5276; color: #1a3252; }
.c3-callout.c3-info .c3-callout-title { color: #1a5276; }
.c3-callout.c3-success { background: #f0faf4; border-left: 4px solid #1a7a3c; color: #1a3a28; }
.c3-callout.c3-success .c3-callout-title { color: #1a7a3c; }

.c3-industry-block { border: 1.5px solid #dde4ec; border-radius: 10px; overflow: hidden; margin: 28px 0; }
.c3-industry-block-header { background: #0d1b2a; padding: 18px 22px; display: flex; align-items: center; gap: 14px; }
.c3-industry-icon { width: 40px; height: 40px; border-radius: 8px; background: rgba(255,255,255,0.1); color: #fff; font-size: 18px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.c3-industry-block-header h3 { color: #fff; margin: 0; font-size: 17px; font-weight: 700; }
.c3-industry-block-header .c3-industry-tag { margin-left: auto; font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; background: rgba(200,81,10,0.8); color: #fff; padding: 3px 9px; border-radius: 3px; white-space: nowrap; }
.c3-industry-block-body { padding: 22px; background: #fff; }
.c3-industry-block-body p { font-size: 14.5px; }
.c3-quick-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin: 24px 0 40px; }
.c3-qs-item { background: #f7f9fb; border: 1px solid #dde4ec; border-radius: 8px; padding: 16px; text-align: center; }
.c3-qs-item strong { display: block; font-size: 20px; font-weight: 800; color: #0d1b2a; margin-bottom: 4px; }
.c3-qs-item span { font-size: 12px; color: #7a8a9a; }
.c3-spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 16px 0; }
.c3-spec-box { background: #f7f9fb; border: 1px solid #dde4ec; border-radius: 7px; padding: 14px; }
.c3-spec-box-label { font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #8a9aaa; margin-bottom: 8px; }
.c3-spec-box ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 5px; }
.c3-spec-box ul li { font-size: 13px; color: #344a5e; line-height: 1.5; display: flex; gap: 7px; align-items: flex-start; }
.c3-spec-box ul li::before { content: ""; flex-shrink: 0; width: 5px; height: 5px; border-radius: 50%; background: #1a5276; margin-top: 7px; }

.c3-rec-row { display: flex; align-items: flex-start; gap: 10px; background: #eaf2f8; border-radius: 6px; padding: 12px 14px; margin-top: 14px; }
.c3-rec-label { font-size: 10px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: #1a5276; white-space: nowrap; margin-top: 1px; flex-shrink: 0; }
.c3-rec-row p { font-size: 13px; color: #1a3252; margin: 0; line-height: 1.55; }
.c3-rec-row a { color: #1a5276; text-decoration: none; font-weight: 600; }
.c3-rec-row a:hover { text-decoration: underline; }

.c3-table-wrap { overflow-x: auto; margin: 18px 0 28px; border-radius: 8px; border: 1px solid #dde4ec; box-shadow: 0 1px 4px rgba(0,0,0,0.04); }
.c3-table-wrap table { width: 100%; border-collapse: collapse; font-size: 13px; }
.c3-table-wrap thead tr { background: #0d1b2a; }
.c3-table-wrap thead th { color: rgba(255,255,255,0.85); font-size: 10.5px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; padding: 12px 14px; text-align: left; white-space: nowrap; }
.c3-table-wrap tbody tr:nth-child(odd) { background: #fff; }
.c3-table-wrap tbody tr:nth-child(even) { background: #f7f9fb; }
.c3-table-wrap tbody tr:hover { background: #eef4fa; }
.c3-table-wrap tbody td { padding: 10px 14px; color: #344a5e; border-bottom: 1px solid #eef0f3; line-height: 1.45; vertical-align: top; }
.c3-table-wrap tbody tr:last-child td { border-bottom: none; }
.c3-table-wrap tbody td:first-child { font-weight: 600; color: #1a2332; }
.c3-tag-yes { color: #1a7a3c; font-weight: 700; }
.c3-tag-no { color: #c0392b; font-weight: 700; }
.c3-tag-cond { color: #c8510a; font-weight: 600; }

.c3-cluster-nav { background: #f5f7fa; border: 1px solid #dde4ec; border-radius: 10px; padding: 24px; margin: 52px 0; }
.c3-cluster-nav h3 { font-size: 15px; font-weight: 700; color: #0d1b2a; margin: 0 0 4px; }
.c3-cluster-nav > p { font-size: 13px; color: #8a9aaa; margin: 0 0 16px; }
.c3-cluster-nav-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 9px; }
.c3-cn-item { background: #fff; border: 1.5px solid #dde4ec; border-radius: 8px; padding: 13px 14px; text-decoration: none; display: block; transition: border-color 0.2s; }
.c3-cn-item:hover { border-color: #1a5276; }
.c3-cn-item.c3-active { border-color: #c8510a; background: #fff8f5; }
.c3-cn-item.c3-pillar-item { border-color: #1a5276; background: #eaf2f8; }
.c3-cn-label { font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #8a9aaa; margin-bottom: 4px; }
.c3-cn-item.c3-active .c3-cn-label { color: #c8510a; }
.c3-cn-item.c3-pillar-item .c3-cn-label { color: #1a5276; }
.c3-cn-title { font-size: 12.5px; font-weight: 700; color: #1a2332; line-height: 1.3; margin-bottom: 3px; }
.c3-cn-desc { font-size: 11.5px; color: #7a8a9a; line-height: 1.4; }

.c3-articles-section { margin: 44px 0; }
.c3-articles-header { display: flex; align-items: baseline; gap: 10px; margin-bottom: 5px; }
.c3-articles-header h3 { margin: 0; }
.c3-articles-count { font-size: 11px; font-weight: 700; background: #0d1b2a; color: #fff; padding: 2px 8px; border-radius: 3px; }
.c3-articles-section > p { font-size: 13.5px; color: #7a8a9a; margin-bottom: 16px; }
.c3-articles-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.c3-article-card { background: #fff; border: 1.5px solid #dde4ec; border-radius: 10px; padding: 20px; display: flex; flex-direction: column; gap: 7px; transition: border-color 0.2s, box-shadow 0.2s; }
.c3-article-card:hover { border-color: #1a5276; box-shadow: 0 4px 12px rgba(0,0,0,0.06); }
.c3-article-tag { font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #c8510a; background: #fff0e8; border: 1px solid #f5c8a8; padding: 2px 7px; border-radius: 3px; align-self: flex-start; }
.c3-article-card h4 { font-size: 14px; font-weight: 700; color: #0d1b2a; line-height: 1.35; margin: 0; }
.c3-article-card p { font-size: 13px; color: #5a6a7a; line-height: 1.55; flex: 1; margin: 0; }
.c3-article-card a { font-size: 13px; font-weight: 600; color: #1a5276; text-decoration: none; margin-top: auto; }
.c3-article-card a:hover { text-decoration: underline; }

.c3-faq-item { border: 1px solid #dde4ec; border-radius: 8px; margin-bottom: 7px; overflow: hidden; }
.c3-faq-q { background: #f7f9fb; padding: 14px 18px; font-size: 14.5px; font-weight: 600; color: #0d1b2a; cursor: pointer; display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; user-select: none; line-height: 1.4; }
.c3-faq-q::after { content: "+"; font-size: 20px; line-height: 1; color: #1a5276; flex-shrink: 0; font-weight: 300; }
.c3-faq-q.open { background: #eef4fa; }
.c3-faq-q.open::after { content: "-"; }
.c3-faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.3s ease; font-size: 14.5px; color: #344a5e; line-height: 1.72; }
.c3-faq-a.open { max-height: 500px; padding: 14px 18px; }

.c3-cta-block { background: linear-gradient(135deg, #0d1b2a 0%, #1a2f45 100%); border-radius: 12px; padding: 44px 40px; margin: 52px 0 0; display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; }
.c3-cta-block h2 { font-size: 22px; color: #fff; margin: 0; border: none; padding: 0; }
.c3-cta-block p { color: rgba(255,255,255,0.5); font-size: 15px; margin: 7px 0 0; }
.c3-cta-block a { display: inline-block; background: #c8510a; color: #fff; font-size: 13.5px; font-weight: 700; padding: 14px 26px; border-radius: 6px; text-decoration: none; white-space: nowrap; }
.c3-cta-block a:hover { background: #a84208; }

.c3-sb-widget { background: #fff; border: 1.5px solid #dde4ec; border-radius: 10px; padding: 20px; margin-bottom: 18px; }
.c3-sb-widget-title { font-size: 11px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: #0d1b2a; margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1px solid #eef0f3; display: flex; align-items: center; gap: 7px; }
.c3-sb-form { display: flex; flex-direction: column; gap: 10px; }
.c3-sb-form input, .c3-sb-form select, .c3-sb-form textarea { width: 100%; padding: 9px 12px; border: 1.5px solid #dde4ec; border-radius: 6px; font-size: 13.5px; color: #1a2332; font-family: inherit; background: #fafbfc; outline: none; transition: border-color 0.2s; }
.c3-sb-form input:focus, .c3-sb-form select:focus, .c3-sb-form textarea:focus { border-color: #1a5276; background: #fff; }
.c3-sb-form textarea { resize: vertical; min-height: 72px; }
.c3-sb-form-label { font-size: 11px; font-weight: 600; color: #6a7a8a; margin-bottom: 3px; display: block; }
.c3-sb-form-group { display: flex; flex-direction: column; }
.c3-sb-submit { background: #c8510a; color: #fff; font-size: 13.5px; font-weight: 700; padding: 12px; border-radius: 6px; border: none; cursor: pointer; width: 100%; text-align: center; letter-spacing: 0.04em; }
.c3-sb-submit:hover { background: #a84208; }
.c3-sb-form-note { font-size: 11.5px; color: #8a9aaa; text-align: center; line-height: 1.4; }
.c3-sb-form-note strong { color: #1a7a3c; font-size: 11.5px; }

.c3-industry-nav-list { display: flex; flex-direction: column; gap: 6px; }
.c3-industry-nav-link { display: flex; align-items: center; gap: 9px; padding: 9px 11px; border-radius: 6px; border: 1px solid #eef0f3; background: #fafbfc; text-decoration: none; font-size: 13px; color: #1a5276; font-weight: 500; transition: all 0.15s; }
.c3-industry-nav-link:hover { border-color: #1a5276; background: #eaf2f8; }
.c3-industry-nav-link .c3-ind-icon { font-size: 15px; width: 26px; text-align: center; flex-shrink: 0; }

.c3-trust-items { display: flex; flex-direction: column; gap: 9px; }
.c3-trust-item { display: flex; align-items: flex-start; gap: 9px; }
.c3-trust-check { flex-shrink: 0; width: 20px; height: 20px; border-radius: 50%; background: #1a7a3c; color: #fff; font-size: 11px; font-weight: 700; display: flex; align-items: center; justify-content: center; margin-top: 1px; }
.c3-trust-item-text { font-size: 13px; color: #344a5e; line-height: 1.45; }
.c3-trust-item-text strong { color: #1a2332; font-size: 13px; }

.c3-related-links { display: flex; flex-direction: column; gap: 7px; }
.c3-related-link { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-radius: 6px; border: 1px solid #eef0f3; background: #fafbfc; text-decoration: none; font-size: 13px; color: #1a5276; font-weight: 500; transition: all 0.15s; }
.c3-related-link:hover { border-color: #1a5276; background: #eaf2f8; }
.c3-related-link::before { content: "->"; font-size: 12px; color: #c8510a; }

@media (max-width: 1024px) {
  .c3-page-layout { grid-template-columns: 1fr; padding: 0 24px 60px; }
  .c3-main-col { padding: 32px 0; }
  .c3-sidebar { position: static; max-height: none; padding: 0 0 32px; border-left: none; border-top: 1px solid #eef0f3; }
}
@media (max-width: 640px) {
  .c3-hero { padding: 44px 20px 40px; }
  .c3-breadcrumb, .c3-pillar-banner, .c3-eeat-bar { padding-left: 20px; padding-right: 20px; }
  .c3-pillar-banner, .c3-eeat-bar { margin-left: 20px; margin-right: 20px; }
  .c3-cta-block { grid-template-columns: 1fr; padding: 28px 22px; }
  .c3-hero-stats { gap: 16px; }
  .c3-hero-stat { padding-right: 16px; margin-right: 16px; }
  .c3-spec-grid { grid-template-columns: 1fr; }
}

/* Hero 两栏布局(带右侧 Quick Reference 卡片) */
.c3-hero-inner { display: grid; grid-template-columns: 1fr 380px; gap: 48px; align-items: center; max-width: 1200px; margin: 0 auto; margin-top: 50px;}
.c3-hero-right { display: flex; align-items: flex-start; }
.c3-hero-card { background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.13); border-radius: 12px; padding: 24px; width: 100%; backdrop-filter: blur(4px); }
.c3-hero-card-title { font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(255,255,255,0.5); margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.c3-hero-card-rows { display: flex; flex-direction: column; gap: 1px; margin-bottom: 16px; }
.c3-hero-card-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 9px 10px; border-radius: 6px; transition: background 0.15s; }
.c3-hero-card-row:hover { background: rgba(255,255,255,0.06); }
.c3-hero-card-industry { font-size: 13px; font-weight: 600; color: rgba(255,255,255,0.85); white-space: nowrap; flex-shrink: 0; }
.c3-hero-card-spec { font-size: 12px; color: rgba(255,255,255,0.45); text-align: right; }
.c3-hero-card-note { font-size: 11.5px; color: rgba(255,255,255,0.3); line-height: 1.55; margin-bottom: 16px; padding-top: 12px; border-top: 1px solid rgba(255,255,255,0.08); font-style: italic; }
.c3-hero-card-cta { display: block; text-align: center; background: #c8510a; color: #fff; font-size: 13px; font-weight: 700; padding: 11px 16px; border-radius: 6px; text-decoration: none; letter-spacing: 0.04em; transition: background 0.2s; }
.c3-hero-card-cta:hover { background: #a84208; }
.c3-hero-stats { display: flex; gap: 0; flex-wrap: wrap; border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; margin-top: 32px; }

@media (max-width: 900px) {
  .c3-hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .c3-hero-right { display: none; }
}
/* ================================================================
   CLUSTER 4 — Wholesale Sourcing Guide (c4-*)
   插入位置：追加到你现有 CSS 文件（大的那份，含 mg- / c2- / c3- 的文件）末尾即可。

   说明：
   - 原稿里有一段 .site-nav/.nav-inner/.logo... 的顶部导航样式，
     但对应的 HTML 里并没有用到这些标签（是废代码），已被去掉。
     如果你需要给这个页面配顶部导航，直接复用你已有的
     .c3-site-nav / .mg-site-nav 结构即可，不需要重新写一套。
   - 这里所有类名都加了 c4- 前缀，避免和已有的 .hero/.breadcrumb/
     .faq-item/.table-wrap/.cluster-nav 等同名类冲突。
   - 变量没有塞进全局 :root（会覆盖别的页面的配色），而是挂在
     .c4-page-wrap 上做局部作用域变量，只在这个页面内生效。
   ================================================================ */

.c4-page-wrap {
  --c4-text-primary: #1a1a1a;
  --c4-text-secondary: #444;
  --c4-text-muted: #666;
  --c4-border: #d8d8d8;
  --c4-border-light: #ebebeb;
  --c4-bg-page: #ffffff;
  --c4-bg-section: #f7f7f7;
  --c4-bg-callout: #f0f4f8;
  --c4-accent: #1a5fa8;
  --c4-accent-dark: #134a85;
  --c4-accent-light: #e8f0fb;
  --c4-warning-bg: #fff8e6;
  --c4-warning-border: #e6b800;
  --c4-success-bg: #edf7ed;
  --c4-success-border: #2e7d32;
  --c4-font-body: Georgia, 'Times New Roman', serif;
  --c4-font-ui: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --c4-max-width: 1180px;

  font-family: var(--c4-font-body);
  color: var(--c4-text-primary);
  background: var(--c4-bg-page);
  line-height: 1.75;
  max-width: var(--c4-max-width);
  margin: 0 auto;
  padding: 0 24px 80px;
}

/* ---- HERO ---- */
.c4-hero {
margin-top: 40px;
    position: relative;
    color: #fff;
    padding: 64px 24px 56px;
    overflow: hidden;
    background:rgba(0,0,0,0.5) url(/shunshiglobal/2026/07/03/banner42.png) center center / cover no-repeat;
    background-blend-mode: darken;
}
 
.c4-hero-inner {
  max-width: 860px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
 
.c4-hero .c4-breadcrumb {
  padding: 0;
  margin-bottom: 18px;
  color: rgba(255,255,255,.55);
}
.c4-hero .c4-breadcrumb a { color: rgba(255,255,255,.78); }
.c4-hero .c4-breadcrumb a:hover { color: #fff; text-decoration: underline; }
.c4-hero .c4-breadcrumb-sep { color: rgba(255,255,255,.35); }
 
.c4-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.25);
  color: #cfe3f7;
  font-family: var(--c4-font-ui);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 18px;
}
 
.c4-hero h1 {
  font-family: var(--c4-font-ui);
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 20px;
  max-width: 760px;
}
.c4-hero h1 em {
  font-style: normal;
  color: #7fb3d3;
}
 
.c4-hero-lead {
  font-size: 1.05rem;
  color: rgba(255,255,255,.78);
  max-width: 700px;
  line-height: 1.8;
  margin-bottom: 24px;
}
 
.c4-hero-byline {
  font-family: var(--c4-font-ui);
  font-size: .82rem;
  color: rgba(255,255,255,.55);
  border-top: 1px solid rgba(255,255,255,.15);
  padding-top: 16px;
}
.c4-hero-byline strong { color: rgba(255,255,255,.85); }
 
@media (max-width: 600px) {
  .c4-hero { padding: 44px 20px 40px; }
  .c4-hero h1 { font-size: 1.5rem; }
}

/* ---- SECTIONS / TYPOGRAPHY ---- */
.c4-section { padding: 48px 0 0; }
.c4-section + .c4-section { border-top: 1px solid var(--c4-border-light); }
.c4-page-wrap h2 { font-family: var(--c4-font-ui); font-size: 1.45rem; font-weight: 700; color: var(--c4-text-primary); margin-bottom: 18px; padding-top: 4px; line-height: 1.3; }
.c4-page-wrap h2:first-of-type { margin-top: 0; }
.c4-page-wrap h3 { font-family: var(--c4-font-ui); font-size: 1.1rem; font-weight: 700; color: var(--c4-text-primary); margin: 28px 0 12px; }
.c4-page-wrap p { margin-bottom: 18px; }
.c4-page-wrap a { color: var(--c4-accent); text-decoration: underline; }

/* ---- CALLOUT BOXES ---- */
.c4-callout { background: var(--c4-bg-callout); border-left: 4px solid var(--c4-accent); padding: 18px 22px; margin: 24px 0; border-radius: 0 4px 4px 0; font-size: .95rem; }
.c4-callout p:last-child { margin-bottom: 0; }
.c4-callout-label { font-family: var(--c4-font-ui); font-size: .72rem; text-transform: uppercase; letter-spacing: .09em; font-weight: 700; color: var(--c4-accent); margin-bottom: 8px; }
.c4-callout-warning { background: var(--c4-warning-bg); border-left-color: var(--c4-warning-border); }
.c4-callout-warning .c4-callout-label { color: #8a6000; }
.c4-callout-success { background: var(--c4-success-bg); border-left-color: var(--c4-success-border); }
.c4-callout-success .c4-callout-label { color: var(--c4-success-border); }

/* ---- TABLES ---- */
.c4-table-wrap { overflow-x: auto; margin: 24px 0; }
.c4-table-wrap table { width: 100%; border-collapse: collapse; font-family: var(--c4-font-ui); font-size: .88rem; }
.c4-table-wrap thead th { background: var(--c4-text-primary); color: #fff; padding: 11px 14px; text-align: left; font-weight: 600; }
.c4-table-wrap tbody tr:nth-child(even) { background: var(--c4-bg-section); }
.c4-table-wrap tbody td { padding: 10px 14px; border-bottom: 1px solid var(--c4-border-light); vertical-align: top; color: var(--c4-text-secondary); }
.c4-table-wrap tbody tr:last-child td { border-bottom: none; }

/* ---- CHECKLIST ---- */
.c4-checklist { list-style: none; padding: 0; margin: 16px 0; }
.c4-checklist li { display: flex; gap: 12px; align-items: flex-start; padding: 9px 0; border-bottom: 1px solid var(--c4-border-light); font-family: var(--c4-font-ui); font-size: .9rem; color: var(--c4-text-secondary); }
.c4-checklist li:last-child { border-bottom: none; }
.c4-checklist li::before { content: ""; flex-shrink: 0; width: 18px; height: 18px; margin-top: 2px; border: 2px solid var(--c4-border); border-radius: 3px; background: #fff; }

/* ---- STEP BLOCKS ---- */
.c4-steps { margin: 24px 0; }
.c4-step { display: flex; gap: 20px; align-items: flex-start; margin-bottom: 28px; }
.c4-step-number { flex-shrink: 0; width: 36px; height: 36px; background: var(--c4-accent); color: #fff; font-family: var(--c4-font-ui); font-size: .9rem; font-weight: 700; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-top: 2px; }
.c4-step-body h3 { margin-top: 0; margin-bottom: 8px; font-size: 1rem; }
.c4-step-body p { margin-bottom: 0; font-size: .95rem; color: var(--c4-text-secondary); }

/* ---- FAQ (静态展示，不折叠，不需要 JS) ---- */
.c4-faq-item { border-top: 1px solid var(--c4-border-light); padding: 20px 0; }
.c4-faq-item:last-child { border-bottom: 1px solid var(--c4-border-light); }
.c4-faq-q { font-family: var(--c4-font-ui); font-weight: 700; font-size: .97rem; color: var(--c4-text-primary); margin-bottom: 10px; }
.c4-faq-a { font-size: .95rem; color: var(--c4-text-secondary); margin: 0; }

/* ---- RELATED ARTICLES ---- */
.c4-related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; margin-top: 20px; }
.c4-related-card { border: 1px solid var(--c4-border); border-radius: 4px; padding: 18px; text-decoration: none; transition: border-color .15s, box-shadow .15s; }
.c4-related-card:hover { border-color: var(--c4-accent); box-shadow: 0 2px 8px rgba(26,95,168,.10); }
.c4-related-card-tag { font-family: var(--c4-font-ui); font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; color: var(--c4-accent); font-weight: 700; margin-bottom: 8px; }
.c4-related-card-title { font-family: var(--c4-font-ui); font-size: .9rem; font-weight: 600; color: var(--c4-text-primary); line-height: 1.4; }

/* ---- BREADCRUMB ---- */
.c4-breadcrumb { padding: 20px 0 0; font-family: var(--c4-font-ui); font-size: .8rem; color: var(--c4-text-muted); display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.c4-breadcrumb a { color: var(--c4-accent); text-decoration: none; }
.c4-breadcrumb a:hover { text-decoration: underline; }
.c4-breadcrumb-sep { color: var(--c4-border); }

/* ---- CLUSTER NAV ---- */
.c4-cluster-nav { background: var(--c4-bg-section); border: 1px solid var(--c4-border); border-radius: 6px; padding: 24px 28px; margin: 48px 0 0; }
.c4-cluster-nav-header { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.c4-cluster-nav-label { font-family: var(--c4-font-ui); font-size: .72rem; text-transform: uppercase; letter-spacing: .09em; font-weight: 700; color: var(--c4-text-muted); }
.c4-cluster-nav-line { flex: 1; height: 1px; background: var(--c4-border); }
.c4-cluster-pillar-link { display: flex; align-items: center; gap: 12px; background: var(--c4-accent); color: #fff; text-decoration: none; border-radius: 4px; padding: 13px 18px; margin-bottom: 16px; transition: background .15s; }
.c4-cluster-pillar-link:hover { background: var(--c4-accent-dark); color: #fff; }
.c4-cluster-pillar-icon { flex-shrink: 0; width: 32px; height: 32px; background: rgba(255,255,255,.18); border-radius: 4px; display: flex; align-items: center; justify-content: center; font-size: 1rem; }
.c4-cluster-pillar-eyebrow { font-family: var(--c4-font-ui); font-size: .68rem; text-transform: uppercase; letter-spacing: .09em; opacity: .8; margin-bottom: 2px; }
.c4-cluster-pillar-title { font-family: var(--c4-font-ui); font-size: .9rem; font-weight: 700; line-height: 1.3; }
.c4-cluster-pages { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.c4-cluster-page-card { display: flex; flex-direction: column; gap: 4px; border: 1px solid var(--c4-border); border-radius: 4px; padding: 13px 15px; text-decoration: none; background: #fff; transition: border-color .15s, box-shadow .15s; position: relative; }
.c4-cluster-page-card:hover { border-color: var(--c4-accent); box-shadow: 0 2px 8px rgba(26,95,168,.09); }
.c4-cluster-page-card.c4-current { border-color: var(--c4-accent); background: var(--c4-accent-light); cursor: default; }
.c4-cluster-page-num { font-family: var(--c4-font-ui); font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--c4-text-muted); }
.c4-cluster-page-card.c4-current .c4-cluster-page-num { color: var(--c4-accent); }
.c4-cluster-page-name { font-family: var(--c4-font-ui); font-size: .85rem; font-weight: 600; color: var(--c4-text-primary); line-height: 1.35; }
.c4-cluster-page-card.c4-current .c4-cluster-page-name { color: var(--c4-accent-dark); }
.c4-current-badge { position: absolute; top: 10px; right: 10px; font-family: var(--c4-font-ui); font-size: .62rem; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; background: var(--c4-accent); color: #fff; padding: 2px 6px; border-radius: 3px; }

/* ---- BACK LINK / DIVIDER（备用，当前 HTML 未使用，保留以备后续加返回链接）---- */
.c4-back-link { display: inline-flex; align-items: center; gap: 6px; font-family: var(--c4-font-ui); font-size: .84rem; color: var(--c4-accent); text-decoration: none; margin: 40px 0 0; padding: 10px 0; border-top: 1px solid var(--c4-border-light); width: 100%; }
.c4-back-link:hover { text-decoration: underline; }
.c4-divider { border: none; border-top: 1px solid var(--c4-border-light); margin: 48px 0 0; }

@media (max-width: 600px) {
  .c4-hero h1 { font-size: 1.55rem; }
  .c4-page-wrap h2 { font-size: 1.2rem; }
  .c4-page-wrap { padding: 0 16px 60px; }
}
.c4-content-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  align-items: start;
}
 
.c4-main-col { min-width: 0; }
 
.c4-sidebar {
  position: sticky;
  top: 90px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
 
/* 侧边栏卡片通用样式 */
.c4-sw {
  background: #fff;
  border: 1px solid var(--c4-border);
  border-radius: 8px;
  padding: 18px 20px;
}
.c4-sw h4 {
  font-family: var(--c4-font-ui);
  font-size: .85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--c4-text-primary);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c4-border-light);
}
 
/* 目录卡片：内部直接复用站点已有的 .toc-widget / .toc-list / .toc-h2 组件，
   这里只需要把它塞进卡片里，去掉外层多余的 sticky（卡片本身已经 sticky 了） */
.c4-sw .toc-widget {
  position: static;
  max-height: 50vh;
  overflow-y: auto;
}
 
/* 咨询 CTA 卡片 */
.c4-sw-cta {
  background: linear-gradient(135deg, #0d1b2a, #1a2f45);
  border: none;
  color: #fff;
}
.c4-sw-cta h4 {
  color: #fff;
  border-bottom-color: rgba(255,255,255,.15);
}
.c4-sw-cta p {
  font-size: .82rem;
  color: rgba(255,255,255,.7);
  margin-bottom: 14px;
  line-height: 1.55;
}
.c4-sw-btn {
  display: inline-block;
  background: var(--c4-accent);
  color: #fff !important;
  font-family: var(--c4-font-ui);
  font-size: .82rem;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: 5px;
  text-decoration: none !important;
}
.c4-sw-btn:hover { background: var(--c4-accent-dark); }
 
/* 移动端：侧边栏收起 sticky，退到正文下方单栏显示 */
@media (max-width: 900px) {
  .c4-content-grid { grid-template-columns: 1fr; }
  .c4-sidebar { position: static; }
}