/* ===========================================
   BCKJ 奔潮科技 — 全局样式
   风格：企业IT服务 · 蓝白调 · 卡片化 · 强CTA
=========================================== */

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #1a202c;
  background: #ffffff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: color .2s ease; }
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; }

:root {
  --c-primary: #0d3b66;
  --c-primary-dark: #082c4d;
  --c-accent: #00a8e8;
  --c-warm: #ff6b35;
  --c-text: #1a202c;
  --c-muted: #4a5568;
  --c-line: #e2e8f0;
  --c-bg-soft: #f7fafc;
  --c-bg-cool: #f0f6fc;
  --shadow-sm: 0 2px 8px rgba(13,59,102,.06);
  --shadow-md: 0 8px 28px rgba(13,59,102,.10);
  --shadow-lg: 0 18px 50px rgba(13,59,102,.18);
  --radius: 14px;
  --radius-lg: 22px;
}

.container {
  width: min(1200px, 92%);
  margin: 0 auto;
}

/* ========= Buttons ========= */
.btn-primary, .btn-ghost {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn-primary {
  background: linear-gradient(135deg, #0d3b66, #00a8e8);
  color: #fff;
  box-shadow: 0 6px 18px rgba(13,59,102,.25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(13,59,102,.35); }
.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255,255,255,.5);
}
.btn-ghost:hover { background: rgba(255,255,255,.1); }
.btn-sm { padding: 10px 18px; font-size: 14px; }
.btn-block { display: flex; width: 100%; }

/* ========= Nav ========= */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  background: rgba(255,255,255,.96);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--c-line);
  z-index: 100;
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0;
}
.logo { display: inline-flex; align-items: center; gap: 10px; }
.logo-mark { display: inline-flex; }
.logo-text { display: flex; flex-direction: column; line-height: 1; }
.logo-text strong {
  font-size: 18px; font-weight: 800; color: var(--c-primary);
  letter-spacing: 1px;
}
.logo-text em {
  font-style: normal; font-size: 12px; color: var(--c-muted);
  margin-top: 2px;
}
.nav-links { display: flex; gap: 28px; }
.nav-links a {
  font-size: 15px; color: var(--c-text); font-weight: 500;
  position: relative; padding: 4px 0;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 2px; background: var(--c-accent); transform: scaleX(0);
  transition: transform .2s ease;
}
.nav-links a:hover { color: var(--c-primary); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.phone-icon { font-size: 16px; }
.phone-num { font-weight: 700; color: var(--c-primary); font-size: 16px; }
.nav-burger { display: none; background: none; border: 0; font-size: 26px; color: var(--c-primary); }

/* ========= Hero ========= */
.hero {
  position: relative;
  min-height: 92vh;
  padding: 140px 0 80px;
  color: #fff;
  overflow: hidden;
  background: linear-gradient(135deg, #061d3d 0%, #0d3b66 50%, #0e568f 100%);
}
.hero-bg { position: absolute; inset: 0; }
.hero-bg svg { width: 100%; height: 100%; }

.hero-inner { position: relative; z-index: 2; }
.hero-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 999px;
  font-size: 14px;
  letter-spacing: 1px;
  margin-bottom: 24px;
}
.hero-title {
  font-size: clamp(34px, 5vw, 60px);
  line-height: 1.18;
  font-weight: 800;
  margin: 0 0 22px;
}
.hero-title em {
  font-style: normal;
  background: linear-gradient(120deg, #00a8e8, #ff6b35);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  padding: 0 4px;
}
.rot-line {
  display: block;
  position: absolute;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s ease, transform .6s ease;
}
.rot-line.active {
  position: relative;
  opacity: 1;
  transform: none;
}
.hero-title { position: relative; min-height: 1.5em; }

.hero-sub {
  font-size: 17px;
  max-width: 720px;
  color: rgba(255,255,255,.85);
  margin: 0 0 36px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-stats {
  display: flex; align-items: center; gap: 30px;
  margin-top: 64px;
  padding: 28px 36px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(6px);
  width: fit-content;
  max-width: 100%;
  flex-wrap: wrap;
}
.hs-item { display: flex; flex-direction: column; align-items: flex-start; min-width: 110px; }
.hs-num {
  font-size: 36px; font-weight: 800;
  background: linear-gradient(120deg, #ffffff, #00d4c8);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  line-height: 1;
}
.hs-num small { font-size: 18px; opacity: .9; }
.hs-label { font-size: 13px; color: rgba(255,255,255,.78); margin-top: 6px; letter-spacing: .5px; }
.hs-divider { width: 1px; height: 44px; background: rgba(255,255,255,.2); }

.hero-scroll {
  position: absolute; left: 50%; bottom: 18px;
  transform: translateX(-50%);
  font-size: 12px; color: rgba(255,255,255,.55);
  animation: scroll 2.4s ease-in-out infinite;
}
@keyframes scroll {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: .5; }
  50% { transform: translateX(-50%) translateY(8px); opacity: 1; }
}

/* ========= Section Heads ========= */
.section-head { margin-bottom: 56px; }
.section-head.center { text-align: center; }
.kicker {
  display: inline-block;
  font-size: 13px; letter-spacing: 3px;
  color: var(--c-accent); font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.kicker.light { color: #00d4c8; }
.section-head h2 {
  font-size: clamp(26px, 3.4vw, 40px);  /* 40px 上限保证长标题桌面端单行 */
  line-height: 1.3;
  margin: 0 0 14px;
  color: var(--c-text);
  font-weight: 800;
  text-wrap: balance;   /* 移动端多行时自动均衡断行, 避免尾行只剩几个字 */
}
.section-head h2 .hl {
  background: linear-gradient(120deg, #0d3b66, #00a8e8);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section-head h2 em {
  font-style: normal;
  color: var(--c-warm);
  font-weight: 800;
}
.section-head p {
  font-size: 16px;
  color: var(--c-muted);
  max-width: 720px;
  margin: 0 auto;
  text-wrap: pretty;   /* 段落换行避免孤字 */
}
.section-head:not(.center) p { margin-left: 0; }

/* ========= Trust Strip ========= */
.trust {
  background: var(--c-bg-soft);
  padding: 22px 0;
  border-bottom: 1px solid var(--c-line);
}
.trust-inner {
  display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
  justify-content: center;
}
.trust-label {
  font-size: 13px; color: var(--c-muted); letter-spacing: 2px;
}
.trust-logos { display: flex; gap: 28px; flex-wrap: wrap; }
.trust-logos span {
  font-size: 16px; font-weight: 700;
  color: var(--c-primary); opacity: .65;
  letter-spacing: 1px;
  transition: opacity .2s ease;
}
.trust-logos span:hover { opacity: 1; }
.trust-logos .more { color: var(--c-accent); }

/* ========= About / Challenges ========= */
.about { padding: 110px 0; background: #fff; }
.challenges {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px; margin-bottom: 90px;
}
.ch-card {
  padding: 36px 28px;
  background: var(--c-bg-soft);
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-line);
  transition: transform .25s, box-shadow .25s;
}
.ch-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.ch-num {
  font-size: 32px; font-weight: 800;
  background: linear-gradient(120deg, #0d3b66, #00a8e8);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  margin-bottom: 12px;
}
.ch-card h3 { font-size: 22px; margin: 0 0 10px; color: var(--c-text); }
.ch-card p { margin: 0; color: var(--c-muted); font-size: 15px; }

.who-grid {
  display: grid; grid-template-columns: 1.1fr 1fr;
  gap: 60px; align-items: center;
}
.who-text h3 { font-size: 30px; line-height: 1.3; margin: 0 0 18px; font-weight: 800; }
.who-text p { font-size: 16px; color: var(--c-muted); margin: 0 0 24px; }
.who-list { list-style: none; padding: 0; margin: 0 0 30px; }
.who-list li {
  padding: 12px 0; border-top: 1px solid var(--c-line);
  font-size: 15px; color: var(--c-text);
}
.who-list li:last-child { border-bottom: 1px solid var(--c-line); }
.who-list strong { color: var(--c-primary); margin-right: 6px; }

.who-visual {
  position: relative;
  aspect-ratio: 1/1;
  background: linear-gradient(135deg, #0d3b66, #00a8e8);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: 1fr 1fr 1fr;
  gap: 14px;
}
.vis-card {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; backdrop-filter: blur(4px);
  z-index: 2; position: relative;
}
/* 三角环绕布局: 客户在上, 工程师/服务商在左下/右下, 与中心平台对称连线 */
.vis-card.v1 { grid-area: 1 / 2; }
.vis-card.v2 { grid-area: 3 / 1; }
.vis-card.v3 { grid-area: 3 / 3; }
.vis-center {
  grid-area: 2 / 2;
  background: linear-gradient(180deg, #ffffff, #eaf6ff);
  color: #0d3b66; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  border-radius: 16px; z-index: 3; position: relative;
  box-shadow: 0 10px 34px rgba(4, 32, 60, .35), 0 0 0 6px rgba(255,255,255,.14);
}
.vis-lines { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; }
.vis-lines line { stroke: rgba(255,255,255,.45); stroke-width: 2; stroke-dasharray: 4 4; animation: dash 4s linear infinite; }
@keyframes dash { to { stroke-dashoffset: -200; } }

/* ========= Mode Comparison ========= */
.mode { padding: 110px 0; background: var(--c-bg-soft); }
.mode-grid {
  display: grid;
  grid-template-columns: 1fr 80px 1fr;
  gap: 24px; align-items: stretch;
}
.mode-col {
  background: #fff;
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-line);
  box-shadow: var(--shadow-sm);
}
.mode-col.old { opacity: .9; }
.mode-col.new { border: 2px solid transparent; background: linear-gradient(#fff,#fff) padding-box, linear-gradient(135deg,#0d3b66,#00a8e8) border-box; }
.mode-title {
  font-size: 22px; font-weight: 800;
  color: var(--c-text);
  margin-bottom: 4px;
}
.mode-sub { font-size: 14px; color: var(--c-muted); margin-bottom: 22px; }
.mode-flow {
  display: flex; align-items: center; flex-wrap: wrap;
  justify-content: center;   /* 链条在卡片内居中 */
  gap: 4px 8px;              /* 行距大一点, 列距小一点 */
  margin-bottom: 22px;
  padding: 16px 12px;
  background: var(--c-bg-soft);
  border-radius: 12px;
}
/* 节点+箭头绑成一组: 换行时箭头永远跟着前面的节点, 不会出现悬空箭头 */
.mf-step { display: flex; align-items: center; gap: 4px; white-space: nowrap; }
.mf {
  background: #fff; padding: 7px 9px; border-radius: 8px;
  font-size: 13px; font-weight: 600; color: var(--c-text);
  border: 1px solid var(--c-line);
}
.mf.hl {
  background: linear-gradient(135deg,#0d3b66,#00a8e8);
  color: #fff; border-color: transparent;
}
.mf-arrow { color: var(--c-muted); font-weight: 700; }
.mf-arrow.hl { color: var(--c-accent); }
.mode-bad, .mode-good { list-style: none; padding: 0; margin: 0; }
.mode-bad li, .mode-good li {
  padding: 10px 0 10px 28px;
  position: relative; font-size: 15px;
}
.mode-bad li::before { content: "✗"; position: absolute; left: 0; color: #cbd5e0; font-weight: 800; }
.mode-good li::before { content: "✓"; position: absolute; left: 0; color: var(--c-accent); font-weight: 800; }

.mode-vs {
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, #0d3b66, #00a8e8);
  border-radius: 50%;
  width: 70px; height: 70px;
  align-self: center;
  box-shadow: var(--shadow-md);
}

/* ========= Advantages ========= */
.advantages { padding: 110px 0; background: #fff; }
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.adv-card {
  padding: 28px 22px;
  background: var(--c-bg-soft);
  border-radius: var(--radius);
  border: 1px solid var(--c-line);
  transition: transform .25s, box-shadow .25s;
}
.adv-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.adv-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.adv-icon svg { width: 28px; height: 28px; }
.adv-num {
  font-size: 30px; font-weight: 800;
  color: var(--c-primary);
  line-height: 1;
  margin-bottom: 10px;
}
.adv-card h3 { font-size: 17px; margin: 0 0 10px; color: var(--c-text); }
.adv-card p { font-size: 14px; color: var(--c-muted); margin: 0; }

/* ========= Solutions ========= */
.solutions { padding: 110px 0; background: #fff; }
.sol-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.sol-card {
  padding: 36px 30px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--c-line);
  box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s;
  display: flex; flex-direction: column;
}
.sol-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.sol-tag {
  display: inline-block; padding: 4px 14px;
  background: var(--c-bg-cool); color: var(--c-primary);
  border-radius: 999px; font-size: 13px; font-weight: 700;
  margin-bottom: 18px;
  align-self: flex-start;
}
.sol-card h3 { font-size: 22px; margin: 0 0 22px; font-weight: 800; }
.sol-body { margin-bottom: 24px; flex: 1; }
.sol-block { margin-bottom: 16px; }
.sol-h {
  display: inline-block; font-size: 12px; font-weight: 800;
  color: var(--c-accent); letter-spacing: 1.5px;
  margin-bottom: 4px;
}
.sol-block p { margin: 0; font-size: 14px; color: var(--c-muted); }
.sol-card.featured {
  border: 2px solid var(--c-accent);
  background: linear-gradient(180deg, #fff 0%, #f5fbff 100%);
  position: relative;
}
.sol-card .badge {
  position: absolute; top: 18px; right: 18px;
  padding: 4px 12px; border-radius: 999px;
  background: var(--c-warm); color: #fff;
  font-size: 12px; font-weight: 700;
}

/* ========= Cases ========= */
.cases { padding: 110px 0; background: var(--c-bg-soft); }
.case-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px;
  margin-bottom: 60px;
}
.case-card {
  display: grid; grid-template-columns: 1fr 1.4fr;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s;
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.case-photo {
  position: relative;
  min-height: 240px;
  overflow: hidden;
  background: linear-gradient(135deg, #0d3b66, #1a4a7a);
}
.case-photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .4s ease;
}
.case-card:hover .case-photo img { transform: scale(1.05); }
.case-photo-label {
  font-size: 13px; font-weight: 700;
  background: rgba(13, 59, 102, 0.85);
  color: #fff;
  padding: 6px 12px; border-radius: 6px;
  backdrop-filter: blur(4px);
  position: absolute; top: 20px; left: 20px;
  z-index: 2;
  letter-spacing: 0.5px;
}
.case-body { padding: 28px 26px; display: flex; flex-direction: column; }
.case-tag {
  font-size: 13px; color: var(--c-accent); font-weight: 700;
  margin-bottom: 6px;
}
.case-body h3 { font-size: 19px; margin: 0 0 14px; font-weight: 800; color: var(--c-text); }
.case-body p { font-size: 14px; color: var(--c-muted); margin: 0 0 6px; }
.case-metric {
  margin-top: auto; padding-top: 16px;
  border-top: 1px dashed var(--c-line);
  display: flex; align-items: baseline; gap: 8px;
}
.case-metric span { font-size: 13px; color: var(--c-muted); }
.case-metric strong {
  font-size: 24px; font-weight: 800;
  color: var(--c-primary);
  background: linear-gradient(120deg, #0d3b66, #00a8e8);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.case-cta { text-align: center; }
.case-cta p { font-size: 16px; color: var(--c-muted); margin-bottom: 18px; }
.case-cta strong { color: var(--c-primary); font-size: 22px; }

/* ========= Case 3 段式重做 ========= */
.case-meta-row {
  display: flex; gap: 10px; margin-bottom: 10px;
  flex-wrap: wrap;
}
.case-industry {
  padding: 3px 10px; border-radius: 999px;
  background: var(--c-bg-cool); color: var(--c-primary);
  font-size: 12px; font-weight: 700;
}
.case-scale {
  padding: 3px 10px; border-radius: 999px;
  background: #fff5e5; color: #b45309;
  font-size: 12px; font-weight: 700;
}
.case-three { margin-top: 8px; }
.ct-step {
  padding: 12px 14px;
  border-radius: 10px;
  margin-bottom: 10px;
  border-left: 3px solid var(--c-line);
  background: var(--c-bg-soft);
}
.ct-tag {
  display: inline-block;
  font-size: 11px; font-weight: 800;
  letter-spacing: 1.2px;
  margin-bottom: 4px;
  color: var(--c-muted);
}
.ct-pain { border-left-color: #e74c3c; }
.ct-pain .ct-tag { color: #e74c3c; }
.ct-sol { border-left-color: var(--c-accent); }
.ct-sol .ct-tag { color: var(--c-accent); }
.ct-result { border-left-color: #10b981; background: #f0fdf4; }
.ct-result .ct-tag { color: #0a8554; }
.ct-step p { margin: 0; font-size: 13.5px; color: var(--c-text); line-height: 1.6; }
.ct-step p strong { color: var(--c-primary); font-weight: 800; }

/* ========= Testimonials / 客户证言 ========= */
.testimonials { padding: 110px 0; background: #fff; }
.testi-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px;
}
.testi-card {
  position: relative;
  padding: 36px 30px 28px;
  background: var(--c-bg-soft);
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-line);
  transition: transform .25s, box-shadow .25s;
}
.testi-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.testi-quote {
  position: absolute;
  top: -10px; left: 24px;
  font-size: 80px; font-weight: 900;
  line-height: 1;
  color: var(--c-accent);
  opacity: .25;
  font-family: Georgia, serif;
}
.testi-card p {
  font-size: 15px; line-height: 1.75;
  color: var(--c-text);
  margin: 0 0 22px;
  position: relative;
}
.testi-author {
  display: flex; align-items: center; gap: 12px;
  padding-top: 18px;
  border-top: 1px dashed var(--c-line);
}
.testi-avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 18px;
  flex-shrink: 0;
}
.testi-info { display: flex; flex-direction: column; line-height: 1.4; }
.testi-info strong { font-size: 14px; color: var(--c-text); font-weight: 700; }
.testi-info span { font-size: 12px; color: var(--c-muted); }

/* ========= Process ========= */
.process { padding: 110px 0; background: #fff; }
.proc-list {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px;
  position: relative;
}
.proc-list::before {
  content: ""; position: absolute;
  top: 28px; left: 10%; right: 10%;
  height: 2px; background: linear-gradient(90deg, #0d3b66, #00a8e8);
  z-index: 0;
}
.proc-list li {
  position: relative; z-index: 1;
  padding: 22px 18px;
  text-align: center;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  transition: transform .25s, box-shadow .25s;
}
.proc-list li:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.proc-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 56px; height: 56px;
  background: linear-gradient(135deg, #0d3b66, #00a8e8);
  color: #fff; font-size: 22px; font-weight: 800;
  border-radius: 50%;
  margin-bottom: 16px;
  box-shadow: 0 6px 16px rgba(13,59,102,.25);
}
.proc-list h4 { font-size: 17px; margin: 0 0 8px; color: var(--c-text); font-weight: 800; }
.proc-list p { font-size: 13px; color: var(--c-muted); margin: 0; }

/* ========= Partners ========= */
.partners { padding: 110px 0; background: var(--c-bg-cool); }
.part-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.part-card {
  padding: 30px 24px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-line);
  text-align: center;
  transition: transform .25s, box-shadow .25s;
}
.part-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.part-status {
  display: inline-block; padding: 4px 12px;
  font-size: 12px; font-weight: 700;
  border-radius: 999px;
  margin-bottom: 16px;
}
.part-card.live .part-status {
  background: #e6f7ee; color: #0a8554;
}
.part-card.planned .part-status {
  background: #fff4e5; color: #b45309;
}
.part-name {
  font-size: 23px; font-weight: 800;
  color: var(--c-primary);
  margin-bottom: 12px;
}
.part-card p { font-size: 14px; color: var(--c-muted); margin: 0; }

/* 客户 logo 墙（真实客户合作品牌） */
.clients-wall {
  margin-top: 64px;
  padding: 44px 40px 48px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  text-align: center;
}
.clients-wall-head h3 { font-size: 24px; font-weight: 800; margin: 0 0 10px; }
.clients-wall-head p { font-size: 15px; color: var(--c-muted); margin: 0 0 28px; }
.clients-wall img {
  width: 100%; height: auto; display: block;
  border-radius: 12px;
  border: 1px solid var(--c-line);
}

/* ========= Certificates ========= */
.certs { padding: 110px 0; background: #fff; }
.certs .section-head { margin-bottom: 48px; }
.certs-grid {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 22px;
}
.cert-card {
  margin: 0; padding: 16px 16px 20px;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: transform .25s, box-shadow .25s;
}
.cert-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.cert-pic {
  border-radius: 10px; overflow: hidden;
  background: #fff; border: 1px solid var(--c-line);
  aspect-ratio: 3 / 4; display: flex; align-items: flex-start; justify-content: center;
}
.cert-pic img {
  width: 100%; height: auto; display: block;
  transition: transform .35s;
}
.cert-card:hover .cert-pic img { transform: scale(1.04); }
.cert-card figcaption {
  margin-top: 14px; font-size: 15px; font-weight: 800;
  color: var(--c-text); line-height: 1.45;
}
.cert-card figcaption span {
  display: block; font-size: 12px; font-weight: 600;
  color: var(--c-muted); margin-top: 3px;
}
@media (max-width: 1080px) {
  .certs-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 720px) {
  .certs-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .clients-wall { margin-top: 44px; padding: 30px 18px 34px; }
  .clients-wall img { border-radius: 8px; }
}

/* ========= CTA ========= */
.cta {
  padding: 110px 0;
  background: linear-gradient(135deg, #061d3d, #0d3b66 50%, #0e568f);
  color: #fff;
  position: relative; overflow: hidden;
}
.cta::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(0,168,232,.25), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255,107,53,.18), transparent 50%);
}
.cta-inner {
  position: relative;
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  align-items: center;
}
.cta-left h2 {
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 800; line-height: 1.2;
  margin: 0 0 18px;
}
.cta-left p {
  font-size: 16px; color: rgba(255,255,255,.85);
  max-width: 520px; margin-bottom: 24px;
}
.cta-points { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; max-width: 520px; }
.cp { font-size: 15px; color: rgba(255,255,255,.92); }

.qr-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 38px 32px;
  color: var(--c-text);
  box-shadow: var(--shadow-lg);
  text-align: center;
  width: 100%; max-width: 380px;
  justify-self: center;
}
.qr-card img {
  display: block; margin: 0 auto 18px;
  width: 220px; height: 220px;
  border-radius: 12px;
}
.qr-card h3 { font-size: 22px; margin: 0 0 8px; font-weight: 800; color: var(--c-primary); }
.qr-card p { font-size: 14px; color: var(--c-muted); margin: 0 0 20px; }

/* ========= Footer ========= */
.footer {
  background: #061d3d;
  color: rgba(255,255,255,.78);
  padding-top: 70px;
}
.footer-inner {
  display: grid; grid-template-columns: 1.4fr 0.9fr 0.9fr 1.4fr; gap: 40px;
  padding-bottom: 50px;
}
.footer .logo-text strong { color: #fff; }
.footer .logo-text em { color: rgba(255,255,255,.6); }
.ft-brand p { font-size: 14px; line-height: 1.8; }
.ft-col h4 {
  color: #fff; font-size: 16px; margin: 0 0 18px; font-weight: 700;
}
.ft-col a {
  display: block; font-size: 14px;
  padding: 4px 0;
  color: rgba(255,255,255,.7);
}
.ft-col a:hover { color: #00d4c8; }
.ft-col p { margin: 6px 0; font-size: 14px; }
.ft-contact p { line-height: 1.8; }
.ft-contact p a { display: inline; padding: 0; color: #fff; border-bottom: 1px solid rgba(255,255,255,.3); }
.ft-contact p a:hover { color: #00d4c8; border-color: #00d4c8; }

.ft-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 22px 0;
  font-size: 13px;
}
.ft-bottom .container {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}

/* ========= Floating CTA ========= */
.float-cta {
  position: fixed;
  right: 24px; bottom: 30px;
  width: 64px; height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ff6b35, #ffae00);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  font-weight: 800; font-size: 14px;
  line-height: 1.2;
  box-shadow: 0 12px 30px rgba(255,107,53,.5);
  z-index: 99;
  transition: transform .25s, box-shadow .25s;
}
.float-cta:hover { transform: scale(1.08); }
.float-cta::before {
  content: ""; position: absolute; inset: -6px;
  border-radius: 50%;
  border: 2px solid rgba(255,107,53,.4);
  animation: pulse 2s ease-out infinite;
}
@keyframes pulse {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(1.4); opacity: 0; }
}

/* ========= Reveal Animation ========= */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .8s ease, transform .8s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ========= Responsive ========= */
@media (max-width: 1024px) {
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .proc-list { grid-template-columns: repeat(3, 1fr); }
  .proc-list::before { display: none; }
  .case-card { grid-template-columns: 1fr; }
  .part-grid { grid-template-columns: repeat(2, 1fr); }
  .testi-grid { grid-template-columns: repeat(2, 1fr); }
  .mode-grid { grid-template-columns: 1fr; }
  .mode-vs { width: 56px; height: 56px; font-size: 22px; margin: 0 auto; }
}
@media (max-width: 768px) {
  .nav-links, .nav-cta .phone-num, .nav-cta .phone-icon { display: none; }
  .nav-burger { display: block; }
  .nav-links.mobile-open {
    display: flex; flex-direction: column;
    position: absolute; top: 64px; left: 0; right: 0;
    background: #fff; padding: 20px;
    border-top: 1px solid var(--c-line);
    box-shadow: var(--shadow-md);
  }
  .hero { padding-top: 110px; }
  .hero-stats { padding: 22px; gap: 18px; }
  .hs-divider { display: none; }
  .hs-item { min-width: 90px; }
  .who-grid { grid-template-columns: 1fr; }
  .who-visual { aspect-ratio: auto; height: 320px; }
  .challenges, .sol-grid, .case-grid, .part-grid, .testi-grid { grid-template-columns: 1fr; }
  .adv-grid { grid-template-columns: 1fr; }
  .cta-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .cta-points { grid-template-columns: 1fr; }
  .float-cta { width: 54px; height: 54px; font-size: 12px; bottom: 20px; right: 16px; }
}
@media (max-width: 480px) {
  .footer-inner { grid-template-columns: 1fr; }
}
/* ===========================================
   融合新增区块（来自旧官网真实内容）
=========================================== */

/* ---- 公司简介 band（关于奔潮内） ---- */
.company-card {
  display: grid; grid-template-columns: 1.5fr 1fr;
  gap: 40px; align-items: center;
  padding: 34px 38px;
  margin: 0 0 56px;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  border-left: 4px solid var(--c-accent);
  border-radius: var(--radius-lg);
}
.cc-tag {
  display: inline-block; padding: 4px 12px; margin-bottom: 12px;
  font-size: 12px; font-weight: 700; letter-spacing: .04em;
  color: var(--c-primary); background: #e6f2fb; border-radius: 999px;
}
.cc-main p { margin: 0; font-size: 15.5px; color: var(--c-muted); line-height: 1.8; }
.cc-main strong { color: var(--c-primary); }
.cc-facts {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 20px;
}
.cc-facts li {
  display: flex; flex-direction: column; gap: 2px;
  padding-left: 14px; border-left: 2px solid var(--c-line);
}
.cc-facts strong { font-size: 22px; font-weight: 800; color: var(--c-primary); line-height: 1.2; }
.cc-facts span { font-size: 13px; color: var(--c-muted); }

/* ---- 业务范围 ---- */
.business { padding: 110px 0; background: var(--c-bg-cool); }
.biz-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px;
}
.biz-card {
  padding: 32px 30px;
  background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  transition: transform .25s, box-shadow .25s;
}
.biz-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.biz-no {
  font-size: 13px; font-weight: 800; letter-spacing: .12em;
  color: var(--c-accent); margin-bottom: 10px;
}
.biz-card h3 { font-size: 23px; font-weight: 800; margin: 0 0 12px; color: var(--c-text); }
.biz-card > p { font-size: 15px; color: var(--c-muted); margin: 0 0 18px; }
.biz-tags { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.biz-tags li {
  padding: 6px 12px; font-size: 13px; font-weight: 600;
  color: var(--c-primary); background: var(--c-bg-cool);
  border: 1px solid var(--c-line); border-radius: 999px;
}

/* ---- 六项服务能力 ---- */
.capabilities { padding: 110px 0; background: #fff; }
.cap-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
}
.cap-item {
  padding: 26px 24px;
  background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--radius);
  border-top: 3px solid var(--c-accent);
  transition: transform .25s, box-shadow .25s;
}
.cap-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.cap-item h4 { font-size: 17px; font-weight: 800; margin: 0 0 8px; color: var(--c-primary); }
.cap-item p { font-size: 14px; color: var(--c-muted); margin: 0; line-height: 1.7; }

/* ---- 解决方案：子标题 ---- */
.sub-title {
  font-size: 20px; font-weight: 800; color: var(--c-text);
  margin: 0 0 22px; padding-left: 14px;
  border-left: 4px solid var(--c-accent);
}
.sub-title:not(:first-child) { margin-top: 56px; }

/* ---- 交付保障 ---- */
.delivery { padding: 110px 0; background: var(--c-bg-cool); }
.dl-flow {
  list-style: none; margin: 0 0 40px; padding: 0;
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 10px;
}
.dl-flow li {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 18px; background: #fff;
  border: 1px solid var(--c-line); border-radius: 999px;
  font-size: 14px; font-weight: 700; color: var(--c-text);
  position: relative;
}
.dl-flow li:not(:last-child)::after {
  content: "→"; margin-left: 10px; color: var(--c-accent); font-weight: 700;
}
.dl-flow span { font-size: 11px; font-weight: 800; color: var(--c-accent); }
.dl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.dl-card {
  padding: 28px 26px; background: #fff;
  border: 1px solid var(--c-line); border-radius: var(--radius-lg);
}
.dl-card h4 { font-size: 18px; font-weight: 800; margin: 0 0 10px; color: var(--c-primary); }
.dl-card p { font-size: 14px; color: var(--c-muted); margin: 0; line-height: 1.8; }

@media (max-width: 1080px) {
  .cap-grid, .dl-grid { grid-template-columns: repeat(2, 1fr); }
  .company-card { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 860px) {
  .biz-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .cap-grid, .dl-grid, .cc-facts { grid-template-columns: 1fr; }
  .cc-facts { grid-template-columns: repeat(2, 1fr); }
  .business, .capabilities, .delivery { padding: 70px 0; }
  .company-card { padding: 24px 20px; margin-bottom: 40px; }
  .biz-card, .cap-item, .dl-card { padding: 24px 20px; }
  .dl-flow { gap: 8px; }
  .dl-flow li { padding: 10px 14px; font-size: 13px; }
  .dl-flow li:not(:last-child)::after { margin-left: 6px; }
}

/* ===========================================
   公司简介板块（自「关于奔潮」移出，置于资质之后）
=========================================== */
.company { padding: 110px 0; background: var(--c-bg-cool); }
.company .section-head { margin-bottom: 44px; }
.company .company-card {
  margin: 0;
  background: #fff;
  box-shadow: 0 6px 28px rgba(13, 59, 102, .07);
}

@media (max-width: 720px) {
  .company { padding: 70px 0; }
  .company .section-head { margin-bottom: 30px; }
}