/* ===================== 基础与变量 ===================== */
:root {
  --bg: #ffffff;
  --bg-alt: #f6f8f7;
  --ink: #1c2b29;
  --muted: #5f6f6d;
  --teal: #345b5a;
  --teal-dark: #294847;
  --teal-soft: #eaf0ef;
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --blue-soft: #eaf0fe;
  --line: #e6eceb;
  --gold: #b98a3e;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 8px 24px rgba(28, 43, 41, 0.07);
  --shadow-lg: 0 18px 46px rgba(28, 43, 41, 0.12);
  --container: 1140px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 800px; }

/* ===================== 按钮 ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(37, 99, 235, 0.22); }
.btn-ghost { border: 1.5px solid var(--line); color: var(--blue); background: #fff; }
.btn-ghost:hover { border-color: var(--blue); background: var(--blue-soft); }
.btn-light { background: #fff; color: var(--blue); }
.btn-light:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(0,0,0,0.15); }

/* ===================== 顶部导航 ===================== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s ease;
}
.site-header.is-scrolled { box-shadow: 0 6px 20px rgba(28, 43, 41, 0.06); }
.header-inner { display: flex; align-items: center; gap: 28px; height: 72px; }

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-logo { width: 44px; height: 44px; border-radius: 10px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text strong { font-size: 17px; letter-spacing: .5px; }
.brand-text small { font-size: 11px; color: var(--muted); letter-spacing: 1px; }

.nav { display: flex; align-items: center; gap: 2px; margin-left: auto; }
.nav-link {
  position: relative; display: inline-flex; align-items: center; gap: 5px;
  padding: 9px 13px; border-radius: 8px; font-size: 15px; color: var(--ink);
  transition: color .2s ease, background .2s ease;
}
.nav-link:hover { color: var(--teal); background: var(--teal-soft); }
.nav-link.is-active { color: var(--teal); font-weight: 600; }
.caret { transition: transform .2s ease; }

.nav-drop { position: relative; }
.drop-menu {
  position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%) translateY(8px);
  min-width: 172px; background: #fff; border: 1px solid var(--line); border-radius: 12px;
  box-shadow: var(--shadow-lg); padding: 8px; opacity: 0; visibility: hidden;
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
}
.nav-drop:hover .drop-menu, .nav-drop.open .drop-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.nav-drop:hover .caret, .nav-drop.open .caret { transform: rotate(180deg); }
.drop-link { display: block; padding: 9px 12px; border-radius: 8px; font-size: 14px; color: var(--ink); }
.drop-link:hover { background: var(--teal-soft); color: var(--teal); }

.header-cta { margin-left: 6px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .25s ease, opacity .25s ease; }

/* ===================== 首屏 ===================== */
.hero { position: relative; overflow: hidden; background: #fff; }
.hero-inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; padding: 80px 24px 72px; }
.hero-badge {
  display: inline-block; padding: 6px 14px; border-radius: 8px;
  background: var(--teal-soft); color: var(--teal); font-size: 13px; font-weight: 600; letter-spacing: 1px;
  margin-bottom: 22px;
}
.hero-title { font-size: clamp(30px, 4.6vw, 52px); line-height: 1.25; font-weight: 800; letter-spacing: 1px; }
.hero-sub { margin: 22px 0 30px; font-size: 17px; color: var(--muted); max-width: 540px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 34px; padding-top: 24px; border-top: 1px solid var(--line); }
.hero-trust li { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.hero-trust li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--teal); }

.hero-visual { display: flex; justify-content: center; }
.hero-card {
  width: min(420px, 100%); background: #fff; border: 1px solid var(--line); border-radius: 20px;
  box-shadow: var(--shadow); padding: 40px; text-align: center;
}
.hero-logo { width: 150px; margin: 0 auto 26px; }
.hero-card-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.hero-card-tags span { padding: 7px 14px; border-radius: 8px; background: var(--teal-soft); color: var(--teal); font-size: 14px; font-weight: 600; }

/* ===================== 通用区块 ===================== */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 640px; margin: 0 auto 48px; text-align: center; }
.eyebrow { display: block; width: 34px; height: 3px; border-radius: 2px; background: var(--teal); margin: 0 auto 18px; }
.section-title { font-size: clamp(24px, 3.4vw, 36px); font-weight: 800; letter-spacing: .5px; }
.section-lead { margin-top: 12px; color: var(--muted); font-size: 16px; }

.grid { display: grid; gap: 24px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--line); }
.card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.card p { color: var(--muted); font-size: 15px; }

.icon-box { width: 52px; height: 52px; border-radius: 12px; background: var(--teal-soft); color: var(--teal); display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.icon-box svg { width: 26px; height: 26px; }

.product-num { display: inline-block; font-size: 14px; font-weight: 700; letter-spacing: 2px; color: var(--teal); margin-bottom: 14px; }

.solution { position: relative; }
.solution h3 { padding-right: 10px; }
.solution-tag {
  position: absolute; top: 26px; right: 26px; font-size: 12px; padding: 4px 12px;
  border-radius: 999px; background: var(--teal-soft); color: var(--teal); font-weight: 600;
}
.solution-link { display: block; }
.solution-more { display: inline-block; margin-top: 16px; font-size: 14px; font-weight: 600; color: var(--blue); }
.solution-link:hover .solution-more { color: var(--blue-dark); }

.services { margin-top: 72px; }
.service-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.service-item {
  display: flex; gap: 20px; align-items: flex-start; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius); padding: 26px;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.service-item:hover { border-color: var(--teal); box-shadow: var(--shadow); }
.service-num { font-size: 15px; font-weight: 700; color: var(--gold); letter-spacing: 1px; padding-top: 2px; }
.service-body h4 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.service-body p { color: var(--muted); font-size: 14.5px; }
.service-fit { display: inline-block; margin-top: 10px; font-size: 12.5px; color: var(--teal); background: var(--teal-soft); padding: 3px 12px; border-radius: 999px; font-weight: 600; }

.about-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 40px; align-items: center; margin-bottom: 40px; }
.about-text p { color: var(--ink); font-size: 15.5px; }
.about-text p + p { margin-top: 14px; }
.about-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.stat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; text-align: center; }
.stat strong { display: block; font-size: 30px; font-weight: 800; color: var(--teal); }
.stat span { font-size: 13px; color: var(--muted); }

.cred-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.cred-badges li {
  padding: 10px 20px; border-radius: 999px; background: #fff; border: 1px solid var(--line);
  font-size: 14px; font-weight: 600; color: var(--teal);
}

.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; overflow: hidden; }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 20px 26px; font-size: 16px; font-weight: 600;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 22px; color: var(--teal); transition: transform .2s ease; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding: 0 26px 22px; color: var(--muted); font-size: 15px; }

.section-cta { padding: 80px 0; }
.cta-panel {
  background: linear-gradient(120deg, var(--blue), var(--blue-dark));
  border-radius: 20px; padding: 52px 48px; color: #fff;
  display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
}
.cta-copy h2 { font-size: clamp(22px, 3vw, 30px); font-weight: 800; }
.cta-copy p { margin-top: 8px; opacity: .85; }

.contact-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 24px; }
.contact-card {
  display: flex; align-items: center; gap: 16px; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px 24px; transition: border-color .2s ease, box-shadow .2s ease;
}
.contact-card:hover { border-color: var(--teal); box-shadow: var(--shadow); }
.contact-icon { width: 46px; height: 46px; border-radius: 12px; background: var(--teal-soft); color: var(--teal); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contact-icon svg { width: 22px; height: 22px; }
.contact-card small { display: block; font-size: 12.5px; color: var(--muted); }
.contact-card strong { font-size: 15.5px; font-weight: 700; }

.site-footer { background: #12312f; color: #d6e2e0; }
.footer-inner { display: grid; grid-template-columns: 1.2fr 1.6fr; gap: 48px; padding: 56px 24px 40px; }
.footer-logo { width: 52px; height: 52px; border-radius: 10px; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: #9fb5b2; line-height: 1.8; }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer-col { display: flex; flex-direction: column; gap: 12px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.footer-col a, .footer-col span { font-size: 14px; color: #9fb5b2; transition: color .2s ease; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); }
.footer-bottom-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; font-size: 13px; color: #9fb5b2; flex-wrap: wrap; }
.footer-bottom a:hover { color: #fff; }

.modal { position: fixed; inset: 0; z-index: 200; display: flex; align-items: center; justify-content: center; padding: 24px; opacity: 0; visibility: hidden; transition: opacity .25s ease, visibility .25s; }
.modal.is-open { opacity: 1; visibility: visible; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(20, 32, 31, 0.55); backdrop-filter: blur(4px); }
.modal-dialog { position: relative; width: min(520px, 100%); background: #fff; border-radius: 20px; box-shadow: var(--shadow-lg); padding: 40px; transform: translateY(16px); transition: transform .25s ease; }
.modal.is-open .modal-dialog { transform: translateY(0); }
.modal-close { position: absolute; top: 16px; right: 16px; width: 36px; height: 36px; border-radius: 50%; font-size: 22px; color: var(--muted); background: var(--bg-alt); transition: background .2s ease, color .2s ease; }
.modal-close:hover { background: var(--teal-soft); color: var(--teal); }
.modal-eyebrow { display: block; font-size: 13px; font-weight: 700; letter-spacing: 2px; color: var(--gold); margin-bottom: 10px; }
.modal-body h3 { font-size: 24px; font-weight: 800; }
.modal-sub { color: var(--muted); margin: 8px 0 24px; font-size: 15px; }
.modal-contact { display: flex; gap: 28px; align-items: center; }
.modal-qr { width: 140px; height: 140px; border-radius: 12px; border: 1px solid var(--line); overflow: hidden; flex-shrink: 0; display: flex; align-items: center; justify-content: center; background: var(--bg-alt); }
.modal-qr img { width: 100%; height: 100%; object-fit: cover; }
.modal-qr.qr-empty::after { content: "微信二维码"; font-size: 13px; color: var(--muted); }
.modal-info { display: flex; flex-direction: column; gap: 16px; }
.modal-info a, .modal-info span { display: flex; flex-direction: column; }
.modal-info small { font-size: 12.5px; color: var(--muted); }
.modal-info strong { font-size: 16px; font-weight: 700; color: var(--ink); }
.modal-info a strong { color: var(--teal); }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity .55s ease, transform .55s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

.page-hero { padding: 68px 0 60px; border-bottom: 1px solid var(--line); background: #fff; }
.breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--teal); }
.page-hero-title { font-size: clamp(30px, 4.6vw, 46px); font-weight: 800; letter-spacing: 1px; }
.page-hero-sub { margin-top: 14px; color: var(--muted); font-size: 17px; max-width: 680px; }

.product-card h3 { font-size: 19px; }
.product-desc { color: var(--muted); font-size: 15px; margin-bottom: 14px; }
.feature-list { display: flex; flex-direction: column; gap: 8px; }
.feature-list li { position: relative; padding-left: 18px; font-size: 14.5px; color: var(--ink); }
.feature-list li::before { content: ""; position: absolute; left: 0; top: 9px; width: 7px; height: 7px; border-radius: 50%; background: var(--teal); }

.solution-card { padding: 34px; }
.solution-card h3 { font-size: 20px; margin-bottom: 20px; }
.solution-row { display: grid; grid-template-columns: 96px 1fr; gap: 16px; padding: 12px 0; border-top: 1px solid var(--line); }
.solution-row span { font-size: 14px; font-weight: 700; color: var(--teal); }
.solution-row p { font-size: 14.5px; color: var(--muted); }
.case-placeholder { margin-top: 40px; text-align: center; border: 1.5px dashed var(--line); border-radius: var(--radius); padding: 48px 32px; }
.case-placeholder h3 { font-size: 20px; font-weight: 700; }
.case-placeholder p { color: var(--muted); margin: 10px 0 22px; }

.news-list { display: flex; flex-direction: column; gap: 16px; max-width: 820px; margin: 0 auto; }
.news-card { display: flex; gap: 24px; align-items: flex-start; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 30px; transition: border-color .2s ease, box-shadow .2s ease; }
.news-card:hover { border-color: var(--teal); box-shadow: var(--shadow); }
.news-date { flex-shrink: 0; font-size: 15px; font-weight: 700; color: var(--teal); padding-top: 3px; min-width: 56px; }
.news-tag { display: inline-block; font-size: 12px; font-weight: 600; color: var(--gold); background: #f6f0e4; padding: 2px 10px; border-radius: 999px; margin-bottom: 8px; }
.news-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.news-card p { color: var(--muted); font-size: 14.5px; }

/* ===================== 案例页 ===================== */
.case-section { margin-top: 56px; }
.case-section .section-head { margin-bottom: 40px; }

.case-hero-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.case-tag { display: inline-block; font-size: 12px; font-weight: 600; color: var(--gold); background: #f6f0e4; padding: 4px 12px; border-radius: 999px; }
.case-tag.teal { color: var(--teal); background: var(--teal-soft); }

.case-card {
  display: block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 38px 42px; color: inherit;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.case-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--teal); }
.case-card-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.case-card h3 { font-size: 22px; font-weight: 800; margin-bottom: 12px; }
.case-desc { color: var(--muted); font-size: 15.5px; max-width: 820px; }
.case-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 26px; }
.case-stat { background: var(--bg-alt); border-radius: var(--radius-sm); padding: 20px; text-align: center; }
.case-stat strong { display: block; font-size: 26px; font-weight: 800; color: var(--teal); }
.case-stat span { font-size: 13px; color: var(--muted); }
.case-more { display: inline-flex; align-items: center; gap: 6px; margin-top: 26px; color: var(--blue); font-weight: 600; font-size: 15px; }
.case-more-note { margin-top: 28px; text-align: center; color: var(--muted); font-size: 14px; }

.case-article { max-width: 780px; margin: 0 auto; }
.case-block { margin-bottom: 56px; }
.case-article h2 { font-size: clamp(22px, 3vw, 28px); font-weight: 800; margin: 0 0 18px; }
.case-lead { font-size: 17px; color: var(--muted); margin-bottom: 16px; }
.case-article p { color: var(--ink); font-size: 15.5px; }
.case-quote {
  border-left: 4px solid var(--teal); background: var(--teal-soft); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 18px 22px; font-size: 16px; color: var(--teal-dark); font-weight: 600; margin: 22px 0;
}
.case-points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 24px 0; }
.case-point { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.case-point .num { display: inline-block; font-size: 13px; font-weight: 700; color: var(--gold); letter-spacing: 1px; margin-bottom: 10px; }
.case-point h3 { font-size: 16.5px; font-weight: 700; margin-bottom: 8px; }
.case-point p { font-size: 14px; color: var(--muted); }
.case-table { width: 100%; border-collapse: collapse; margin: 24px 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.case-table th, .case-table td { padding: 16px 20px; text-align: left; font-size: 15px; border-bottom: 1px solid var(--line); }
.case-table thead th { background: var(--teal); color: #fff; font-weight: 700; }
.case-table tbody td:first-child { font-weight: 700; color: var(--teal); }
.case-table tbody tr:last-child td { border-bottom: none; }
.case-table .up { color: var(--blue); font-weight: 700; }

@media (max-width: 860px) {
  .case-stats, .case-points { grid-template-columns: 1fr; }
  .case-card { padding: 28px 24px; }
}

.case-list { display: flex; flex-direction: column; gap: 20px; }

.pain-list { display: flex; flex-direction: column; gap: 18px; }
.pain-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 28px; }
.pain-head { display: flex; align-items: baseline; gap: 12px; }
.pain-num { font-size: 13px; font-weight: 700; color: var(--gold); letter-spacing: 1px; flex-shrink: 0; }
.pain-head h3 { font-size: 17px; font-weight: 700; }
.pain-desc { color: var(--muted); font-size: 14.5px; margin: 10px 0 16px; }
.pain-fix { background: var(--teal-soft); border-radius: var(--radius-sm); padding: 16px 18px; }
.fix-label { font-size: 13px; font-weight: 700; color: var(--teal); }
.pain-fix p { margin-top: 6px; font-size: 14.5px; color: var(--ink); }

.pitch-list { display: flex; flex-direction: column; gap: 14px; }
.pitch-item { display: flex; gap: 18px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; }
.pitch-item .num { font-size: 15px; font-weight: 700; color: var(--gold); letter-spacing: 1px; padding-top: 2px; flex-shrink: 0; }
.pitch-item h3 { font-size: 16.5px; font-weight: 700; margin-bottom: 6px; }
.pitch-item p { font-size: 14.5px; color: var(--muted); }

.scene-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }

@media (max-width: 860px) {
  .scene-grid { grid-template-columns: 1fr; }
  .pitch-item { flex-direction: column; gap: 8px; }
}

@media (max-width: 560px) {
  .case-table { display: block; overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; }
  .pain-item { padding: 22px 20px; }
}

.story { display: flex; flex-direction: column; gap: 14px; }
.story-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; }
.story-label { display: inline-block; font-size: 13px; font-weight: 700; color: var(--teal); background: var(--teal-soft); padding: 3px 12px; border-radius: 999px; margin-bottom: 10px; }
.story-item p { font-size: 14.5px; color: var(--ink); }
.story-solve { border-color: var(--teal); background: #fbfdfd; }
.story-solve .story-label { color: #fff; background: var(--teal); }

.news-article p { margin-bottom: 18px; line-height: 1.9; }

.solution-block { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 34px 36px; margin-bottom: 20px; }
.solution-block-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.solution-num { font-size: 15px; font-weight: 800; color: var(--gold); letter-spacing: 1px; }
.solution-block h3 { font-size: 20px; font-weight: 800; }
.solution-tagline { font-size: 13px; font-weight: 600; color: var(--teal); background: var(--teal-soft); padding: 3px 12px; border-radius: 999px; }
.solution-text { color: var(--muted); font-size: 15px; line-height: 1.9; }
.solution-points { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.solution-points span { font-size: 13px; color: var(--teal); background: var(--bg-alt); border: 1px solid var(--line); padding: 4px 12px; border-radius: 999px; }
.solution-advantage { background: linear-gradient(120deg, var(--teal), var(--teal-dark)); color: #fff; border-radius: var(--radius); padding: 34px 36px; }
.solution-advantage h3 { font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 12px; }
.solution-advantage p { color: rgba(255,255,255,.92); font-size: 15px; line-height: 1.9; }

@media (max-width: 560px) {
  .solution-block, .solution-advantage { padding: 24px 20px; }
}

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-actions, .hero-trust { justify-content: center; }
  .hero-visual { margin-top: 12px; }
  .about-grid { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .nav {
    position: fixed; top: 72px; left: 0; right: 0; margin: 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 16px 24px 24px; box-shadow: var(--shadow-lg);
    transform: translateY(-12px); opacity: 0; visibility: hidden;
    transition: opacity .25s ease, transform .25s ease, visibility .25s;
  }
  .nav.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
  .nav-link { padding: 14px 12px; font-size: 16px; }
  .nav-drop .drop-menu { position: static; transform: none; opacity: 1; visibility: visible; box-shadow: none; border: none; padding: 0 0 0 12px; display: none; }
  .nav-drop.open .drop-menu { display: block; transform: none; }
  .header-cta { display: none; }
  .nav-toggle { display: flex; margin-left: auto; }
  .nav-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.is-active span:nth-child(2) { opacity: 0; }
  .nav-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .service-list { grid-template-columns: 1fr; }
  .contact-cards { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 36px; }
  .cta-panel { padding: 36px 28px; }
}

@media (max-width: 560px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .hero-inner { padding: 52px 20px 56px; }
  .hero-card { padding: 28px; }
  .footer-cols { grid-template-columns: 1fr 1fr; }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .modal-dialog { padding: 30px 24px; }
  .modal-contact { flex-direction: column; }
  .solution-row { grid-template-columns: 1fr; gap: 6px; }
  .news-card { flex-direction: column; gap: 10px; }
}