/* ==========================================================================
   武汉沙淘金 & 湖北十团 — GEO营销官网
   设计语言：极简科技蓝 + 活力橙 CTA
   ========================================================================== */

:root {
  --c-primary: #0a2540;        /* 深科技蓝 */
  --c-primary-2: #12356b;
  --c-accent: #1657d4;         /* 链接蓝 */
  --c-cta: #ff6a1a;            /* 活力橙 CTA */
  --c-cta-hover: #e85a0c;
  --c-bg: #ffffff;
  --c-bg-soft: #f5f8fc;
  --c-bg-dark: #0a2540;
  --c-text: #1a2332;
  --c-text-soft: #5b6b82;
  --c-border: #e3e9f2;
  --c-success: #16a34a;
  --c-danger: #dc2626;
  --shadow-sm: 0 1px 2px rgba(10,37,64,.06), 0 2px 8px rgba(10,37,64,.04);
  --shadow-md: 0 6px 24px rgba(10,37,64,.10);
  --shadow-lg: 0 18px 50px rgba(10,37,64,.16);
  --radius: 14px;
  --radius-sm: 8px;
  --maxw: 1200px;
  --header-h: 68px;
  --font: "PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--c-accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--c-cta); }
h1,h2,h3,h4 { line-height: 1.3; margin: 0 0 .6em; font-weight: 700; color: var(--c-primary); letter-spacing: -.01em; }
h1 { font-size: clamp(28px, 4vw, 46px); }
h2 { font-size: clamp(24px, 3vw, 34px); }
h3 { font-size: 20px; }
p { margin: 0 0 1em; }
ul { margin: 0 0 1em; padding-left: 1.2em; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section--soft { background: var(--c-bg-soft); }
.section--dark { background: var(--c-bg-dark); color: #dfe7f3; }
.section--dark h2, .section--dark h3 { color: #fff; }
.section-head { max-width: 760px; margin: 0 auto 48px; text-align: center; }
.section-head .eyebrow {
  display: inline-block; padding: 6px 14px; border-radius: 999px;
  background: rgba(255,106,26,.1); border: 1px solid rgba(255,106,26,.18);
  color: var(--c-cta); font-size: 12px; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase; margin-bottom: 16px;
}
.section-head p { color: var(--c-text-soft); font-size: 17px; margin: 0; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--c-border);
}
.nav {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--c-primary); font-size: 18px; }
.logo .mark {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--c-accent), var(--c-cta));
  display: grid; place-items: center; color: #fff; font-size: 16px; font-weight: 800;
}
.logo small { display:block; font-size: 11px; font-weight: 500; color: var(--c-text-soft); letter-spacing: .05em; }
.logo .mark-img { width: 34px; height: 34px; border-radius: 8px; display: block; object-fit: cover; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  color: var(--c-text);
  font-weight: 500;
  font-size: 15px;
  position: relative;
  padding: 8px 2px;
  transition: color .2s;
  text-decoration: none;
}
.nav-links a:hover {
  color: var(--c-accent);
}
.nav-links a.active {
  color: var(--c-accent);
  font-weight: 700;
}
.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2.5px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-cta));
  border-radius: 999px;
}
.nav-cta { display: inline-flex; align-items: center; gap: 6px; }
.menu-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.menu-toggle span { display: block; width: 22px; height: 2px; background: var(--c-primary); margin: 4px 0; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 24px; border-radius: 999px; font-weight: 600; font-size: 15px;
  border: 1px solid transparent; cursor: pointer; transition: all .2s; text-decoration: none;
}
.btn--cta { background: var(--c-cta); color: #fff; box-shadow: 0 6px 18px rgba(255,106,26,.35); }
.btn--cta:hover { background: var(--c-cta-hover); color: #fff; transform: translateY(-1px); }
.btn--ghost { background: #fff; color: var(--c-primary); border-color: var(--c-border); }
.btn--ghost:hover { border-color: var(--c-accent); color: var(--c-accent); }
.btn--light { background: rgba(255,255,255,.12); color: #fff; border-color: rgba(255,255,255,.3); }
.btn--light:hover { background: rgba(255,255,255,.2); color: #fff; }
.btn--lg { padding: 16px 32px; font-size: 16px; }

/* ===== Hero ===== */
.hero {
  position: relative; color: #fff;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(255,106,26,.25), transparent 60%),
    radial-gradient(900px 500px at 10% 110%, rgba(22,87,212,.35), transparent 60%),
    linear-gradient(180deg, #0a2540 0%, #12356b 100%);
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.6), transparent 70%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; padding-top: 80px; padding-bottom: 84px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }

.hero-copy {
  animation: heroFadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.hero .ai-card {
  animation: heroFadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(255, 106, 26, 0.12);
  border: 1px solid rgba(255, 106, 26, 0.35);
  backdrop-filter: blur(8px);
  color: #ff9d66;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 20px;
  box-shadow: 0 4px 16px rgba(255, 106, 26, 0.12);
}
.hero-badge .badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #ff6a1a;
  box-shadow: 0 0 8px #ff6a1a;
  display: inline-block;
}

.hero h1, .hero-title {
  color: #fff;
  font-size: 38px;
  line-height: 1.35;
  font-weight: 800;
  margin: 0 0 18px;
  letter-spacing: -0.01em;
}
.hero h1 .hl, .hero-title .hl {
  color: #ff7a29;
  text-shadow: 0 0 24px rgba(255, 106, 26, 0.35);
}
.hero-title-sub {
  display: block;
  margin-top: 6px;
  color: #ffffff;
}

.hero .lead { font-size: 17px; line-height: 1.7; color: #cdd9ee; max-width: 580px; margin-bottom: 28px; }
.hero-cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 28px; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 18px 28px; font-size: 13px; color: #aebfe0; }
.hero-trust span { display: inline-flex; align-items: center; gap: 6px; }
.hero-trust .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--c-cta); }

/* AI mockup card on hero right */
.ai-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 16px; padding: 20px; backdrop-filter: blur(8px);
  box-shadow: var(--shadow-lg);
}
.ai-card .q { font-size: 13px; color: #aebfe0; margin-bottom: 10px; }
.ai-card .q b { color: #fff; }
.ai-card .a {
  background: rgba(255,255,255,.95); color: var(--c-text);
  border-radius: 12px; padding: 16px; font-size: 14px; line-height: 1.7;
}
.ai-card .a .tag { display:inline-block; background:#eaf1ff; color: var(--c-accent); font-size:11px; font-weight:700; padding:2px 8px; border-radius:6px; margin-right:6px; }
.ai-card .a .brand { color: var(--c-cta); font-weight: 700; }
.ai-card .sources { margin-top: 12px; font-size: 12px; color: #aebfe0; }
.ai-card .sources b { color: #fff; }

/* ===== Trust / Logo wall ===== */
.logos {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.logo-chip {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 20px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(15, 39, 74, 0.05);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.logo-chip:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(15, 39, 74, 0.1);
  border-color: #cbd5e1;
}
.cert-frame {
  width: 100%;
  height: 220px;
  background: linear-gradient(180deg, #f8fafc, #f1f5f9);
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 12px;
  box-sizing: border-box;
}
.cert-img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease;
}
.logo-chip:hover .cert-img {
  transform: scale(1.03);
}
.cert-info {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.cert-info .t {
  font-weight: 700;
  color: var(--c-primary);
  font-size: 16px;
  line-height: 1.4;
}
.cert-info .s {
  font-size: 13px;
  color: var(--c-text-soft);
  line-height: 1.4;
}

/* ===== Pain / article cards ===== */
.cards-3, .kb-cards { display: grid; gap: 24px; }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.kb-cards { grid-template-columns: repeat(3, 1fr); }
.pain-card {
  background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow-sm); position: relative; overflow: hidden;
  display: flex; flex-direction: column; min-height: 220px;
}
.pain-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--c-cta);
}
.pain-card .num { display: none; }
.pain-card h3 { margin: 6px 0 10px; font-size: 18px; line-height: 1.45; }
.pain-card h3 a { color: inherit; }
.pain-card h3 a:hover { color: var(--c-cta); }
.pain-card .pain { color: var(--c-text-soft); margin-bottom: 0; flex: 1 1 auto; line-height: 1.7; font-size: 15px; }
.pain-card .pain a { color: inherit; text-decoration: none; }
.pain-card .arrow { margin-top: auto; padding-top: 18px; font-weight: 700; color: var(--c-primary); display: flex; align-items: center; gap: 8px; }
.pain-card .arrow a { color: inherit; display: inline-flex; align-items: center; gap: 6px; }
.pain-card .arrow a::after { content: "→"; transition: transform .2s; }
.pain-card .arrow a:hover { color: var(--c-cta); }
.pain-card .arrow a:hover::after { transform: translateX(4px); }
.pain-card .arrow .ic { color: var(--c-success); font-weight: 800; }
@media (max-width: 960px) {
  .kb-cards { grid-template-columns: 1fr; }
}

/* ===== Solution modules ===== */
.sol-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.sol-card {
  background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s;
}
.sol-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.sol-card .ic {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, #eaf1ff, #fdeee2); color: var(--c-accent);
  font-size: 22px; margin-bottom: 16px;
}
.sol-card h3 { margin-bottom: 8px; }
.sol-card p { color: var(--c-text-soft); margin: 0; font-size: 15px; }
.sol-card .kw { margin-top: 14px; font-size: 12px; color: var(--c-accent); font-weight: 600; }
.card-link {
  display: inline-flex; align-items: center; gap: 4px;
  margin-top: 10px;
  font-size: 13px; font-weight: 700;
  color: var(--c-cta); text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease;
}
.card-link:hover { color: var(--c-accent); transform: translateX(4px); }

/* ===== Dashboard / Case metrics ===== */
.dashboard {
  background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius);
  box-shadow: var(--shadow-md); overflow: hidden;
}
.dash-head {
  padding: 16px 20px; border-bottom: 1px solid var(--c-border);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  background: linear-gradient(180deg, #f8fbff, #fff);
}
.dash-head .t { font-weight: 700; color: var(--c-primary); }
.dash-head .tag { font-size: 11px; color: var(--c-text-soft); background: var(--c-bg-soft); padding: 3px 10px; border-radius: 999px; }
.dash-body { padding: 20px; }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.metric {
  background: var(--c-bg-soft); border-radius: 12px; padding: 16px;
  border: 1px solid var(--c-border);
}
.metric .label { font-size: 12px; color: var(--c-text-soft); margin-bottom: 6px; }
.metric .value { font-size: 26px; font-weight: 800; color: var(--c-primary); line-height: 1; }
.metric .delta { font-size: 12px; font-weight: 700; margin-top: 6px; }
.metric .delta.up { color: var(--c-success); }
.metric .delta.down { color: var(--c-danger); }
.metric .bar { height: 6px; background: #e3e9f2; border-radius: 999px; margin-top: 10px; overflow: hidden; }
.metric .bar > i { display: block; height: 100%; background: linear-gradient(90deg, var(--c-accent), var(--c-cta)); }

.case-row { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; }
.case-row + .case-row { margin-top: 56px; }
.case-row.flip .case-text { order: 2; }
.case-text h3 { font-size: 22px; }
.case-text .star { display: grid; gap: 12px; margin-top: 14px; }
.case-text .star .row { display: grid; grid-template-columns: 88px 1fr; gap: 12px; }
.case-text .star .k { font-weight: 700; color: var(--c-cta); font-size: 13px; letter-spacing: .05em; }
.case-text .star .v { color: var(--c-text); font-size: 15px; }

/* ===== Cases Grid (home preview) ===== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.case-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 4px 20px rgba(15, 39, 74, 0.05);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
}
.case-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(15, 39, 74, 0.1);
  border-color: #cbd5e1;
}
.case-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.case-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  background: #eef2ff;
  color: #3b5998;
}
.case-badge.orange {
  background: #fff4ec;
  color: #ea580c;
}
.case-badge.teal {
  background: #ecfdf5;
  color: #047857;
}
.case-period {
  font-size: 12px;
  color: #64748b;
  background: #f1f5f9;
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 500;
}
.case-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--c-primary);
  line-height: 1.4;
  margin: 0 0 6px;
}
.case-sub {
  font-size: 13px;
  color: #64748b;
  margin: 0 0 16px;
}

/* 2x2 Stats Grid */
.case-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 18px;
}
.stat-box {
  background: #f8fafc;
  border: 1px solid #edf2f7;
  border-radius: 10px;
  padding: 12px 8px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.stat-box.highlight {
  background: linear-gradient(180deg, #f0f7ff, #f8fafc);
  border-color: #dbeafe;
}
.stat-box .stat-num {
  font-size: 20px;
  font-weight: 800;
  color: var(--c-primary);
  line-height: 1.1;
  font-family: inherit;
}
.stat-box.highlight .stat-num {
  color: #0284c7;
}
.stat-box .stat-num small {
  font-size: 12px;
  font-weight: 600;
  margin-left: 2px;
}
.stat-box .stat-name {
  font-size: 12px;
  color: #64748b;
  margin-top: 4px;
  font-weight: 500;
}
.stat-box .stat-tag {
  font-size: 11px;
  font-weight: 600;
  margin-top: 4px;
  padding: 1px 6px;
  border-radius: 4px;
  background: #e2e8f0;
  color: #475569;
  display: inline-block;
  white-space: nowrap;
}
.stat-box .stat-tag.up {
  background: #dcfce7;
  color: #15803d;
}
.stat-box .stat-tag.down {
  background: #fee2e2;
  color: #b91c1c;
}

/* Structured Story Box */
.case-story {
  background: #fafcff;
  border: 1px solid #eef3fb;
  border-radius: 12px;
  padding: 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
}
.story-item {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  font-size: 13px;
  line-height: 1.55;
}
.story-tag {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  flex-shrink: 0;
  margin-top: 2px;
  white-space: nowrap;
}
.story-tag.problem {
  background: #fee2e2;
  color: #dc2626;
}
.story-tag.solution {
  background: #e0e7ff;
  color: #4338ca;
}
.story-tag.outcome {
  background: #dcfce7;
  color: #16a34a;
}
.story-desc {
  color: #334155;
  font-size: 13px;
  margin: 0;
}
.story-desc a {
  color: var(--c-accent);
  text-decoration: underline;
}

@media (max-width: 960px) {
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  .cases-grid { grid-template-columns: 1fr; }
  .case-card { padding: 20px 16px; }
}

/* ===== Process / Steps ===== */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step {
  background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius);
  padding: 24px; position: relative; box-shadow: var(--shadow-sm);
}
.step .n {
  width: 36px; height: 36px; border-radius: 10px; background: var(--c-primary); color: #fff;
  font-weight: 800; display: grid; place-items: center; margin-bottom: 14px;
}
.step h3 { font-size: 17px; margin-bottom: 6px; }
.step p { color: var(--c-text-soft); font-size: 14px; margin: 0; }

/* ===== FAQ accordion ===== */
.faq { max-width: 860px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--c-border); border-radius: 12px; margin-bottom: 12px;
  background: #fff; overflow: hidden;
}
.faq-q {
  width: 100%; text-align: left; background: none; border: 0; cursor: pointer;
  padding: 18px 22px; font-size: 16px; font-weight: 600; color: var(--c-primary);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  font-family: inherit;
}
.faq-q .pm { color: var(--c-cta); font-size: 22px; transition: transform .2s; flex-shrink: 0; }
.faq-item.open .faq-q .pm { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .25s ease; padding: 0 22px; }
.faq-item.open .faq-a { max-height: 600px; padding-bottom: 20px; }
.faq-a p { color: var(--c-text-soft); margin: 0 0 10px; }
.faq-a p:last-child { margin-bottom: 0; }

/* ===== CTA band ===== */
.cta-band {
  background:
    radial-gradient(800px 400px at 90% 10%, rgba(255,106,26,.3), transparent 60%),
    linear-gradient(135deg, #0a2540, #1657d4);
  color: #fff; border-radius: 20px; padding: 48px; text-align: center;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: #cdd9ee; max-width: 620px; margin: 0 auto 24px; font-size: 17px; }
.cta-band .btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer { background: #07182b; color: #97a8c4; padding: 56px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; }
.footer-grid h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.footer-grid a { color: #97a8c4; display: block; padding: 4px 0; font-size: 14px; }
.footer-grid a:hover { color: #fff; }
.footer-brand .logo { color: #fff; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; color: #97a8c4; max-width: 320px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08); margin-top: 36px; padding-top: 20px;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px;
}

/* ===== Page hero (inner pages) ===== */
.page-hero {
  background: linear-gradient(180deg, #0a2540, #12356b); color: #fff;
  padding: 64px 0;
}
/* 非文章详情页的 Page Hero 进场平滑浮现 */
body:not(.article-page) .page-hero:not(article .page-hero) .container {
  animation: heroFadeUp 0.75s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.page-hero h1 { color: #fff; margin-bottom: 12px; }
.page-hero p { color: #cdd9ee; font-size: 18px; max-width: 720px; margin: 0; }
.breadcrumb { font-size: 13px; color: #aebfe0; margin-bottom: 16px; }
.breadcrumb a { color: #aebfe0; }
.breadcrumb a:hover { color: #fff; }

/* ===== Misc helpers ===== */
.lead-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.lead-list li { display: flex; gap: 10px; align-items: flex-start; }
.lead-list li::before { content: "✓"; color: var(--c-success); font-weight: 800; }
.kbd { background: var(--c-bg-soft); border: 1px solid var(--c-border); border-radius: 6px; padding: 1px 8px; font-size: 13px; font-family: ui-monospace, monospace; }
.note { background: #eaf4ff; border-left: 4px solid var(--c-accent); padding: 14px 18px; border-radius: 8px; font-size: 14px; color: var(--c-text); }
.divider { height: 1px; background: var(--c-border); margin: 40px 0; border: 0; }

/* ===== Scroll Reveal Animations ===== */
.reveal-on-scroll {
  opacity: 0;
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1), transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

/* 默认从下方进入（向上浮入） */
.reveal-from-bottom {
  transform: translateY(28px);
}

/* 从上方进入（向下浮入） */
.reveal-from-top {
  transform: translateY(-28px);
}

.reveal-on-scroll.is-revealed {
  opacity: 1;
  transform: translate(0, 0);
}

.reveal-delay-1 { transition-delay: 0.06s; }
.reveal-delay-2 { transition-delay: 0.14s; }
.reveal-delay-3 { transition-delay: 0.22s; }
.reveal-delay-4 { transition-delay: 0.30s; }

@media (prefers-reduced-motion: reduce) {
  .reveal-on-scroll,
  .reveal-from-bottom,
  .reveal-from-top {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .hero-grid, .case-row, .footer-grid { grid-template-columns: 1fr; }
  .case-row.flip .case-text { order: 0; }
  .cards-3, .sol-grid, .steps, .logos, .metrics { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { gap: 24px; }
}
@media (max-width: 620px) {
  .nav-links { display: none; position: absolute; top: var(--header-h); left: 0; right: 0;
    background: #fff; flex-direction: column; padding: 16px 24px; border-bottom: 1px solid var(--c-border); gap: 14px; }
  .nav-links.open { display: flex; }
  .menu-toggle { display: block; }
  .nav-cta { display: none; }
  .cards-3, .sol-grid, .steps, .logos, .metrics { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .cta-band { padding: 32px 20px; }
  .hero .container { padding-top: 56px; padding-bottom: 56px; }
  .geo-form .form-row { grid-template-columns: 1fr; }
}

/* ===== AJAX Form ===== */
.geo-form { margin-top: 32px; max-width: 920px; margin-left: auto; margin-right: auto; }
.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: stretch;
  justify-content: center;
}
.geo-form input, .geo-form button[type="submit"], .captcha-wrap {
  height: 48px;
  border-radius: 10px;
  box-sizing: border-box;
}
.geo-form input {
  padding: 0 16px;
  border: 1px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.96);
  font-size: 15px;
  color: var(--c-text);
  font-family: inherit;
  transition: border-color .2s, box-shadow .2s;
}
.geo-form input:focus { outline: none; border-color: var(--c-cta); background: #fff; box-shadow: 0 0 0 3px rgba(255,106,26,.25); }
.geo-form input::placeholder { color: #8a9bb3; }
.form-row > input[name="phone"] { flex: 0 1 180px; min-width: 160px; }
.form-row > input[name="content"] { flex: 1 1 260px; min-width: 240px; }
.captcha-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}
.captcha-wrap input { width: 90px; text-align: center; flex: none; }
.captcha-box {
  position: relative;
  width: 110px;
  height: 48px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.25);
  background: #fff;
}
#captcha_img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  cursor: pointer;
}
.captcha-fallback {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: #e3e9f2;
  color: var(--c-text-soft);
  font-size: 12px;
  text-align: center;
  padding: 4px;
}
#captcha_img[alt=""] + .captcha-fallback,
#captcha_img[style*="display: none"] ~ .captcha-fallback { display: flex; }
.geo-form button[type="submit"] {
  flex: 0 0 auto;
  min-width: 120px;
  padding: 0 28px;
  border: none;
  font-size: 16px;
  font-weight: 700;
}
.form-msg { margin-top: 16px; font-size: 14px; min-height: 22px; text-align: center; color: #fff; }
.form-msg.error { color: #ffd1c9; }
.form-msg.success { color: #b9f5b5; }
@media (max-width: 740px) {
  .form-row { flex-direction: column; align-items: stretch; }
  .form-row > input, .captcha-wrap, .geo-form button[type="submit"] { width: 100%; flex: none; min-width: 0; }
  .captcha-wrap { justify-content: space-between; }
  .captcha-wrap input { width: 100px; }
  .captcha-box { width: 120px; }
}

/* ===== Pagination ===== */
.pagination { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 40px; }
.pagination a {
  display: inline-grid; place-items: center; min-width: 40px; height: 40px;
  border-radius: 10px; border: 1px solid var(--c-border); background: #fff;
  color: var(--c-text); font-weight: 600; text-decoration: none; font-size: 14px;
  transition: background .2s, color .2s, border-color .2s;
}
.pagination a.prev, .pagination a.next {
  min-width: 80px;
  padding: 0 14px;
}
.pagination a:hover { border-color: var(--c-accent); color: var(--c-accent); }
.pagination a.active { background: var(--c-cta); border-color: var(--c-cta); color: #fff; }

/* ===== CTA 咨询区块临时隐藏（接口未就绪） ===== */
section#consult { display: none !important; }