/* ================== 基础变量 ================== */
:root {
  --c-bg: #F4F7FB;
  --c-surface: #FFFFFF;
  --c-text: #0B1F3A;
  --c-muted: #5A6A87;
  --c-line: #E2E8F0;
  --c-tag: #EFF6FF;

  --c-primary: #2563EB;
  --c-primary-dark: #1E3A8A;
  --c-primary-soft: #DBEAFE;
  --c-accent: #F97316;
  --c-accent-2: #FB7185;
  --c-cyan: #0EA5E9;
  --c-success: #10B981;

  --shadow-sm: 0 6px 16px -8px rgba(15, 23, 42, 0.10);
  --shadow-md: 0 18px 38px -18px rgba(15, 23, 42, 0.20);
  --shadow-lg: 0 30px 60px -22px rgba(15, 23, 42, 0.30);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-pill: 999px;

  --container: 1200px;

  --font: "Inter", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB",
    "Helvetica Neue", Arial, sans-serif;
}

/* ================== Reset ================== */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul, ol { padding: 0; margin: 0; list-style: none; }
h1, h2, h3, h4, h5, p { margin: 0; }

/* ================== 通用 ================== */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.18em;
  font-weight: 600;
  color: var(--c-primary);
  text-transform: uppercase;
  background: var(--c-tag);
  padding: 6px 12px;
  border-radius: var(--radius-pill);
}
/* —— Hero 顶部价值定位标签：更醒目的渐变胶囊 —— */
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14.5px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: none;
  color: #1D4ED8;
  background: linear-gradient(90deg, #FFFFFF 0%, #DBEAFE 100%);
  border: 1px solid rgba(37, 99, 235, 0.28);
  padding: 9px 18px;
  border-radius: 999px;
  box-shadow: 0 6px 18px -8px rgba(37, 99, 235, 0.45), inset 0 0 0 1px rgba(255,255,255,0.6);
}
.hero-eyebrow::before {
  content: "";
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--c-grad);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.18);
}
.eyebrow-light {
  color: #BAE6FD;
  background: rgba(186, 230, 253, 0.16);
}

.section {
  padding: 96px 0;
  position: relative;
}
.section-light {
  background: var(--c-surface);
}
.section-cta {
  background:
    radial-gradient(60% 80% at 20% 20%, rgba(14, 165, 233, 0.25), transparent 60%),
    radial-gradient(50% 70% at 90% 90%, rgba(249, 115, 22, 0.20), transparent 60%),
    linear-gradient(135deg, #0B1F3A 0%, #1E3A8A 100%);
  color: #F1F5F9;
}
.section-cta h2 { color: #FFFFFF; }
.section-cta p, .section-cta li { color: #CBD5E1; }
.section-cta .contact-list li span { color: #93C5FD; }

.section-head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}
.section-head .eyebrow { margin-bottom: 14px; }
.section-head h2 {
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1.25;
  font-weight: 700;
  margin-bottom: 14px;
}
.section-head p {
  color: var(--c-muted);
  font-size: 16px;
}

/* ================== 按钮 ================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 22px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-cyan) 100%);
  color: #fff;
  box-shadow: 0 12px 28px -14px rgba(37, 99, 235, 0.6);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 18px 30px -12px rgba(37, 99, 235, 0.7); }
.btn-ghost {
  background: transparent;
  border-color: var(--c-line);
  color: var(--c-text);
}
.btn-ghost:hover { border-color: var(--c-primary); color: var(--c-primary); }
.btn-block { width: 100%; }

/* ================== 顶部导航 ================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: all 0.25s ease;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  border-color: var(--c-line);
  box-shadow: var(--shadow-sm);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-size: 18px; letter-spacing: 0.04em; }
.brand-text small { font-size: 11px; color: var(--c-muted); letter-spacing: 0.18em; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  position: relative;
  font-size: 15px;
  color: var(--c-muted);
  font-weight: 500;
  padding: 6px 0;
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--c-primary); }
.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0; left: 50%;
  width: 0; height: 2px;
  background: var(--c-primary);
  transition: all 0.2s ease;
  transform: translateX(-50%);
}
.nav-links a:hover::after { width: 22px; }
.nav-links a.nav-cta {
  color: #fff;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-cyan) 100%);
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  box-shadow: 0 12px 24px -12px rgba(37, 99, 235, 0.55);
}
.nav-links a.nav-cta::after { display: none; }
.nav-links a.nav-cta:hover { color: #fff; transform: translateY(-1px); }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  background: transparent;
  border: 1px solid var(--c-line);
  border-radius: 10px;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 9px; right: 9px;
  height: 2px; background: var(--c-text);
  border-radius: 2px;
  transition: all 0.2s ease;
}
.nav-toggle span:nth-child(1) { top: 12px; }
.nav-toggle span:nth-child(2) { top: 19px; }
.nav-toggle span:nth-child(3) { top: 26px; }

/* ================== HERO ================== */
.hero {
  position: relative;
  padding: 80px 0 96px;
  background:
    radial-gradient(70% 60% at 80% 0%, rgba(14, 165, 233, 0.18), transparent 60%),
    radial-gradient(60% 60% at 0% 100%, rgba(37, 99, 235, 0.16), transparent 60%),
    linear-gradient(180deg, #F8FAFF 0%, #F4F7FB 100%);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  opacity: 0.55;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-copy h1 {
  font-size: clamp(36px, 4.6vw, 60px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 18px 0 22px;
}
.hero-copy h1 em {
  font-style: normal;
  background: linear-gradient(120deg, var(--c-primary), var(--c-cyan) 60%, var(--c-accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-copy .lead {
  font-size: 17px;
  color: var(--c-muted);
  max-width: 580px;
  line-height: 1.85;
}
.hero-copy .lead b { color: var(--c-text); }
.hero-cta {
  margin-top: 28px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-stats {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  border-top: 1px solid var(--c-line);
  padding-top: 24px;
}
.hero-stats li { display: flex; flex-direction: column; }
.hero-stats strong {
  font-size: 26px;
  font-weight: 800;
  color: var(--c-primary);
  line-height: 1.1;
}
.hero-stats span { font-size: 12.5px; color: var(--c-muted); margin-top: 4px; }

/* 对话框卡片 */
.dialog-card {
  position: relative;
  background: var(--c-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(37, 99, 235, 0.08);
  padding: 22px 22px 18px;
  max-width: 460px;
  margin-left: auto;
}
.dialog-card::before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.5), rgba(14, 165, 233, 0.5), rgba(249, 115, 22, 0.5));
  filter: blur(18px);
  z-index: -1;
  opacity: 0.45;
}
.dialog-head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--c-muted);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 16px;
}
.dialog-head .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--c-success);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.18);
}
.chat { display: flex; gap: 10px; margin-bottom: 0; align-items: flex-start; }
.chat-other .bubble {
  background: #F1F5F9;
  color: var(--c-text);
  border-radius: 4px 16px 16px 16px;
  padding: 12px 14px;
  font-size: 14.5px;
  max-width: 80%;
}
.chat-self { flex-direction: row-reverse; }
.chat-self .bubble {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-cyan) 100%);
  color: #fff;
  border-radius: 16px 4px 16px 16px;
  padding: 12px 14px;
  font-size: 14.5px;
  max-width: 88%;
  box-shadow: 0 10px 24px -10px rgba(37, 99, 235, 0.45);
}
.chat-self .bubble u { text-underline-offset: 3px; }
.chat-self .bubble mark {
  background: #2563EB;
  color: #fff;
  padding: 1px 8px;
  border-radius: 6px;
  font-weight: 700;
  letter-spacing: 0.02em;
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.18);
}
.bubble-foot {
  margin: 10px 0 0;
  padding-top: 8px;
  border-top: 1px dashed rgba(255, 255, 255, 0.25);
  font-size: 14px;
}
.avatar {
  width: 30px; height: 30px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  font-size: 12px; font-weight: 700;
  background: #E2E8F0; color: var(--c-muted);
  flex-shrink: 0;
}
.avatar-self {
  background: linear-gradient(135deg, var(--c-accent) 0%, var(--c-accent-2) 100%);
  color: #fff;
}
.dialog-foot {
  margin-top: 12px;
  display: flex;
  justify-content: center;
}
.dialog-foot .chip {
  background: var(--c-tag);
  color: var(--c-primary);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 12.5px;
  font-weight: 600;
}

/* ================== 核心服务 ================== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.service-card {
  position: relative;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  padding: 28px 24px 24px;
  transition: all 0.25s ease;
  overflow: hidden;
}
.service-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-cyan));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--c-primary-soft); }
.service-card:hover::before { transform: scaleX(1); }
.service-card-accent::before { background: linear-gradient(90deg, var(--c-accent), var(--c-accent-2)); }
.service-num {
  font-size: 32px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  margin-bottom: 14px;
}
.service-card-accent .service-num {
  background: linear-gradient(135deg, var(--c-accent) 0%, var(--c-accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
}
.service-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}
.service-card p { color: var(--c-muted); font-size: 14.5px; line-height: 1.7; }
.service-card ul { margin-top: 16px; }
.service-card li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--c-text);
  margin-bottom: 6px;
}
.service-card li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--c-primary);
}
.service-card-accent li::before { background: var(--c-accent); }

/* ================== 费用体系 ================== */
.formula-card {
  background: linear-gradient(135deg, #0B1F3A 0%, #1E3A8A 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin-bottom: 40px;
}
.formula-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(40% 50% at 10% 10%, rgba(14, 165, 233, 0.25), transparent 70%),
    radial-gradient(40% 50% at 90% 90%, rgba(249, 115, 22, 0.18), transparent 70%);
}
.formula-eq {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  font-size: clamp(20px, 2.6vw, 30px);
  font-weight: 700;
}
.term {
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  display: inline-block;
}
.term-l {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
}
.term-c1 {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-cyan) 100%);
  box-shadow: 0 10px 24px -10px rgba(37, 99, 235, 0.6);
}
.term-c2 {
  background: linear-gradient(135deg, var(--c-accent) 0%, var(--c-accent-2) 100%);
  box-shadow: 0 10px 24px -10px rgba(249, 115, 22, 0.55);
}
.eq, .plus { color: #93C5FD; font-weight: 600; }
.formula-sub {
  position: relative;
  color: #CBD5E1;
  margin-top: 16px;
  font-size: 14.5px;
}

.cost-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 22px;
}
.cost-block {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  padding: 24px;
}
.cost-block header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: 10px;
}
.cost-block h3 { font-size: 18px; font-weight: 700; }
.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--c-primary);
  background: var(--c-primary-soft);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}
.badge-c2 { color: #C2410C; background: #FFEDD5; }
.badge-soft { color: #0E7490; background: #CFFAFE; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  font-weight: 500;
  background: var(--c-tag);
  color: var(--c-primary-dark);
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(37, 99, 235, 0.08);
  transition: all 0.2s ease;
}
.chip:hover { background: var(--c-primary-soft); transform: translateY(-1px); }
.chip-c2 { background: #FFF7ED; color: #9A3412; border-color: rgba(249, 115, 22, 0.15); }
.chip-c2:hover { background: #FFEDD5; }
.chip-soft { background: #ECFEFF; color: #155E75; border-color: rgba(14, 165, 233, 0.18); }
.chip-soft:hover { background: #CFFAFE; }

/* ================== 标准库 ================== */
.standards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.std-group {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--c-primary-dark);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin: 6px 0 2px;
}
.std-group::before {
  content: "";
  width: 10px; height: 10px;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-cyan));
}
.std-group::after {
  content: "";
  height: 1px;
  background: linear-gradient(90deg, var(--c-line), transparent);
  flex: 1;
}
.std-group:not(:first-child) { margin-top: 14px; }
.std-card {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  transition: all 0.25s ease;
}
.std-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--c-primary-soft); }
.std-head { display: flex; flex-direction: column; gap: 6px; }
.std-level {
  align-self: flex-start;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--c-tag);
  color: var(--c-primary);
  margin-bottom: 4px;
}
.std-level-gb { background: #FEE2E2; color: #B91C1C; }
.std-level-t { background: #FFEDD5; color: #C2410C; }
.std-level-l { background: #DCFCE7; color: #166534; }
.std-card h3 { font-size: 17px; font-weight: 700; line-height: 1.45; }
.std-sub { font-size: 13px; color: var(--c-muted); }
.std-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: #F8FAFC;
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 13px;
}
.std-meta li { display: flex; gap: 10px; align-items: baseline; }
.std-meta li span {
  flex: 0 0 50px;
  color: var(--c-muted);
  font-size: 12px;
}
.std-desc { font-size: 14px; color: var(--c-muted); line-height: 1.7; }

/* ================== 方法论 ================== */
.method-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 56px;
}
.method-layer {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  position: relative;
  overflow: hidden;
}
.method-layer::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: linear-gradient(180deg, var(--c-primary), var(--c-cyan));
}
.method-layer:nth-child(2)::before { background: linear-gradient(180deg, var(--c-cyan), var(--c-accent)); }
.method-layer:nth-child(3)::before { background: linear-gradient(180deg, var(--c-accent), var(--c-accent-2)); }
.layer-no {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--c-primary);
  background: var(--c-primary-soft);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
}
.method-layer:nth-child(2) .layer-no { color: var(--c-cyan); background: #CFFAFE; }
.method-layer:nth-child(3) .layer-no { color: var(--c-accent); background: #FFEDD5; }
.method-layer h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.method-layer p { color: var(--c-muted); font-size: 14.5px; }

.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
}
.process::before {
  content: "";
  position: absolute;
  top: 28px;
  left: 6%;
  right: 6%;
  height: 2px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-cyan), var(--c-accent), var(--c-accent-2));
  opacity: 0.3;
}
.process li {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  padding: 22px;
  position: relative;
  z-index: 1;
}
.process .step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-cyan) 100%);
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
  font-size: 15px;
  box-shadow: 0 8px 20px -8px rgba(37, 99, 235, 0.5);
  margin-bottom: 14px;
}
.process li:nth-child(2) .step { background: linear-gradient(135deg, var(--c-cyan) 0%, #06B6D4 100%); box-shadow: 0 8px 20px -8px rgba(14, 165, 233, 0.5); }
.process li:nth-child(3) .step { background: linear-gradient(135deg, var(--c-accent) 0%, var(--c-accent-2) 100%); box-shadow: 0 8px 20px -8px rgba(249, 115, 22, 0.5); }
.process li:nth-child(4) .step { background: linear-gradient(135deg, var(--c-accent-2) 0%, #EC4899 100%); box-shadow: 0 8px 20px -8px rgba(236, 72, 153, 0.5); }
.process h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.process p { color: var(--c-muted); font-size: 14px; }

/* ================== 行业洞察 ================== */
.insight-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.insight-card {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  padding: 26px;
  position: relative;
  overflow: hidden;
  transition: all 0.25s ease;
}
.insight-card::after {
  content: "";
  position: absolute;
  right: -40px; bottom: -40px;
  width: 160px; height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.12), transparent 70%);
}
.insight-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.insight-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--c-primary);
  background: var(--c-tag);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
}
.insight-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; line-height: 1.5; }
.insight-card p { color: var(--c-muted); font-size: 14.5px; line-height: 1.7; }

/* ================== 关于 ================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
.about-grid h2 { font-size: clamp(28px, 3vw, 38px); font-weight: 700; margin: 14px 0 18px; }
.about-grid p { color: var(--c-muted); font-size: 16px; line-height: 1.9; }
.about-grid b { color: var(--c-text); }
.about-points { margin-top: 22px; display: grid; gap: 10px; }
.about-points li {
  padding: 12px 14px;
  border-left: 3px solid var(--c-primary);
  background: var(--c-surface);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 14.5px;
  color: var(--c-muted);
}
.about-points strong { color: var(--c-text); margin-right: 6px; }
.about-side { display: grid; gap: 18px; }
.metric-card {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  align-items: center;
  gap: 18px;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
}
.metric-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.metric-no {
  font-size: 30px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}
.metric-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.metric-card p { font-size: 13.5px; color: var(--c-muted); }

/* ================== 联系 ================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: start;
}
.contact-grid h2 { font-size: clamp(28px, 3vw, 36px); font-weight: 700; margin: 14px 0 16px; }
.contact-grid > div > p { color: #E2E8F0; font-size: 16px; line-height: 1.95; }
.contact-list { margin-top: 24px; display: grid; gap: 10px; }
.contact-list li {
  display: flex;
  gap: 14px;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  background: rgba(255, 255, 255, 0.04);
  color: #E2E8F0;
}
.contact-list li span { color: #93C5FD; flex: 0 0 70px; font-size: 13px; }

.contact-form {
  background: var(--c-surface);
  border-radius: var(--radius-md);
  padding: 28px;
  display: grid;
  gap: 14px;
  box-shadow: var(--shadow-md);
  color: var(--c-text);
}
.contact-form h3 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.contact-form label {
  display: flex;
  flex-direction: column;
  font-size: 13px;
  color: var(--c-muted);
  gap: 6px;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  font-family: inherit;
  font-size: 14.5px;
  padding: 10px 12px;
  border: 1px solid var(--c-line);
  border-radius: 10px;
  background: #F8FAFC;
  color: var(--c-text);
  transition: all 0.2s ease;
  resize: vertical;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--c-primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}
/* ================== Footer ================== */
.site-footer {
  background: #07142B;
  color: #94A3B8;
  padding-top: 56px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.foot-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
}
.foot-brand strong { display: block; font-size: 18px; }
.foot-brand span { color: #94A3B8; font-size: 13px; }
.site-footer h5 {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}
.site-footer ul { display: grid; gap: 8px; }
.site-footer ul li { font-size: 13.5px; color: #94A3B8; }
.site-footer ul a { color: #94A3B8; transition: color 0.2s ease; }
.site-footer ul a:hover { color: #38BDF8; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  font-size: 12.5px;
  color: #64748B;
  flex-wrap: wrap;
  gap: 8px;
}

/* ================== 入场动画 ================== */
.section, .service-card, .std-card, .insight-card,
.process li, .method-layer, .metric-card {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.section.in-view,
.service-card.in-view,
.std-card.in-view,
.insight-card.in-view,
.process li.in-view,
.method-layer.in-view,
.metric-card.in-view {
  opacity: 1;
  transform: translateY(0);
}
.service-card.in-view { transition-delay: 0.05s; }
.std-card.in-view { transition-delay: 0.05s; }
.process li:nth-child(2).in-view { transition-delay: 0.08s; }
.process li:nth-child(3).in-view { transition-delay: 0.16s; }
.process li:nth-child(4).in-view { transition-delay: 0.24s; }

/* ================== 响应式 ================== */
@media (max-width: 1080px) {
  .nav-links { gap: 22px; }
  .nav-links a { font-size: 14px; }
  .nav-links a.nav-cta { padding: 9px 16px; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .standards-grid, .insight-grid, .method-grid { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: repeat(2, 1fr); }
  .process::before { display: none; }
  .cost-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .section { padding: 72px 0; }
  .hero { padding: 56px 0 72px; }
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .dialog-card { margin: 0 auto; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .nav-links {
    position: fixed;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: #fff;
    border-top: 1px solid var(--c-line);
    box-shadow: var(--shadow-md);
    padding: 12px 24px 24px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease;
  }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--c-line); width: 100%; }
  .nav-links a.nav-cta { margin-top: 8px; text-align: center; border-bottom: 0; }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .service-grid, .standards-grid, .insight-grid, .method-grid, .cost-grid, .footer-grid { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .hero-copy h1 { font-size: 34px; }
  .section-head h2 { font-size: 26px; }
  .formula-eq { font-size: 20px; gap: 8px; }
  .term { padding: 8px 12px; }
  .about-logo { max-width: 100%; }
}

/* ================== 品牌 LOGO / 二维码 ================== */
.brand-mark {
  width: 36px; height: 36px;
  object-fit: cover;
  border-radius: 9px;
  background: #fff;
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.06), 0 3px 8px rgba(15, 23, 42, 0.08);
}
.foot-brand img.foot-mark {
  width: 40px; height: 40px;
  object-fit: cover;
  border-radius: 11px;
  background: #fff;
  padding: 3px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
}
.foot-brand span a { color: #94A3B8; }
.foot-brand span a:hover { color: #38BDF8; }

.about-logo {
  width: 100%;
  max-width: 460px;
  height: auto;
  border-radius: 14px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--c-line);
  margin: 0 0 22px;
}

/* 微信咨询卡片 */
.wechat-card { text-align: center; }
.wechat-card h3 { margin-bottom: 4px; }
.section-cta .wechat-tip {
  color: #0F172A;
  font-size: 16.5px;
  font-weight: 500;
  line-height: 1.9;
  margin: 0 0 18px;
}
.wechat-qr {
  width: 200px;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--c-line);
  background: #fff;
  box-shadow: var(--shadow-sm);
  margin: 0 auto;
}
.wechat-meta {
  margin-top: 16px;
  display: grid;
  gap: 6px;
  font-size: 13.5px;
  color: var(--c-muted);
}
.wechat-meta li { display: flex; justify-content: center; gap: 8px; }
.wechat-meta span { color: var(--c-muted); }
.wechat-meta a { color: var(--c-primary); font-weight: 600; }
.wechat-meta a:hover { color: var(--c-cyan); }

.contact-list a { color: inherit; border-bottom: 1px solid rgba(255, 255, 255, 0.25); transition: all 0.2s ease; }
.contact-list a:hover { color: #7DD3FC; border-color: transparent; }

/* ================== 视觉升级：大气 / 动态 / 高级 / 硬核 ================== */
:root {
  --c-grad: linear-gradient(100deg, #3B82F6, #6366F1 55%, #8B5CF6);
}

/* —— 顶部品牌：拉开间距 —— */
.nav { height: 78px; }
.brand { gap: 14px; flex: none; }
.brand-text { gap: 5px; line-height: 1.12; }
.brand-text strong { font-size: 20px; letter-spacing: 0.16em; }
.brand-text small {
  font-size: 10.5px;
  letter-spacing: 0.36em;
  opacity: 0.72;
  white-space: nowrap;
}
.nav-inner .brand-mark { width: 40px; height: 40px; }

/* —— Hero 主标题：行宽、行距重排 —— */
.hero-copy h1 {
  font-size: clamp(32px, 3.9vw, 50px);
  line-height: 1.22;
  letter-spacing: 0.002em;
}
.hero-copy h1 em {
  font-style: normal;
  background: var(--c-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-copy h1 br + em, .hero-copy h1 br + span em { white-space: nowrap; }

/* —— 核心指标：大数字（图）+ 小单位（灰）+ 标签 —— */
.hero-stats {
  margin-top: 34px;
  gap: 22px 12px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.hero-stats li { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; }
.hero-stats .stat-figure {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  font-size: clamp(46px, 5.6vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  background: var(--c-grad);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: heroGrad 6s ease-in-out infinite;
  padding-bottom: 6px;
}
.hero-stats .stat-figure::after {
  content: "";
  display: block;
  height: 3px;
  width: 34px;
  border-radius: 3px;
  margin-top: 6px;
  background: var(--c-grad);
  background-size: 200% 100%;
  animation: heroGrad 6s ease-in-out infinite;
}
.hero-stats .stat-unit,
.hero-stats .stat-unit * {
  font-size: 14px;
  font-weight: 600;
  background: none !important;
  -webkit-background-clip: initial;
  background-clip: initial;
  color: var(--c-muted);
  -webkit-text-fill-color: var(--c-muted);
  letter-spacing: 0;
}
.hero-stats .stat-label {
  font-size: 12.5px;
  color: var(--c-muted);
  letter-spacing: 0.04em;
  line-height: 1.4;
  white-space: nowrap;
}
@keyframes heroGrad {
  0%, 100% { background-position: 0% 0; }
  50% { background-position: 100% 0; }
}
.cnt { display: inline-block; }

/* —— 章节数字 / 序号放大到 40 —— */
.metric-no, .service-num {
  font-size: 40px;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.2px rgba(59, 130, 246, 0.55);
}
.service-num { -webkit-text-stroke-color: rgba(100, 116, 139, 0.5); }

/* —— 对话卡片：呼吸光晕 + 入场动画 —— */
.dialog-card-live {
  position: relative;
  overflow: hidden;
  animation: cardIn 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
  background: linear-gradient(165deg, #FFFFFF 0%, #F4F8FF 100%);
}
.dialog-card-live::before {
  content: "";
  position: absolute;
  inset: -40%;
  pointer-events: none;
  background: conic-gradient(from 0deg at 50% 50%, rgba(59, 130, 246, 0.10), transparent 26%, rgba(99, 102, 241, 0.10) 52%, transparent 78%, rgba(59, 130, 246, 0.10));
  animation: haloSpin 14s linear infinite;
}
@keyframes haloSpin { to { transform: rotate(360deg); } }
.dialog-card-live > * { position: relative; z-index: 1; }
@keyframes cardIn {
  from { opacity: 0; transform: translateY(24px) scale(0.98); }
  to { opacity: 1; transform: none; }
}

/* 对话舞台：固定高度，消息逐条上滚，末条金句定格 */
.chat-stage {
  position: relative;
  height: 380px;
  overflow: hidden;
  padding: 18px 22px 16px;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 8%, #000 100%);
  mask-image: linear-gradient(to bottom, transparent 0, #000 8%, #000 100%);
}
.chat-marquee {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.chat { display: flex; gap: 10px; align-items: flex-start; animation: popIn 0.5s cubic-bezier(0.22, 1, 0.36, 1) both; }
.chat.typing-row { opacity: 1; }
@keyframes popIn {
  from { opacity: 0; transform: translateY(12px) scale(0.985); }
  to { opacity: 1; transform: none; }
}
.avatar {
  flex: none; width: 30px; height: 30px; border-radius: 9px;
  display: grid; place-items: center;
  font-size: 13px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, #7C8AA0, #55617A);
  box-shadow: 0 2px 6px rgba(30, 41, 59, 0.15);
}
.avatar-self { background: var(--c-grad); }
.bubble {
  background: #F0F4FA; border: 1px solid #E3E9F4;
  border-radius: 4px 14px 14px 14px;
  padding: 10px 13px; font-size: 13.5px; line-height: 1.75;
  color: #334155;
}
.chat-self { flex-direction: row-reverse; }
.chat-self .bubble {
  background: linear-gradient(160deg, #EFF4FF, #FFFFFF);
  border-color: #D8E3FF;
  border-radius: 14px 4px 14px 14px;
  box-shadow: 0 6px 18px -10px rgba(59, 130, 246, 0.35);
}
.bubble mark { background: rgba(59, 130, 246, 0.14); color: #1D4ED8; border-radius: 4px; padding: 0 3px; font-weight: 600; }
.bubble u { text-decoration: none; color: #1D4ED8; font-weight: 600; }
.bubble p { margin: 8px 0 0; }
.bubble p:first-child { margin-top: 0; }
.bubble-foot { margin: 6px 0 0; font-size: 13px; color: #1E293B; }
.bubble-foot strong {
  background: var(--c-grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-weight: 800; letter-spacing: 0.04em;
}
.dialog-card-live .dialog-foot { border-top: 1px dashed #DCE4F2; padding-top: 12px; margin-top: 8px; }

/* —— 输入指示点 —— */
.typing-row .bubble { display: flex; gap: 5px; padding: 13px 16px; }
.typing-row .bubble i {
  width: 6px; height: 6px; border-radius: 50%;
  background: #94A3B8;
  animation: blinkDot 1.1s infinite ease-in-out;
}
.typing-row .bubble i:nth-child(2) { animation-delay: 0.15s; }
.typing-row .bubble i:nth-child(3) { animation-delay: 0.3s; }
@keyframes blinkDot { 0%, 60%, 100% { opacity: 0.25; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-3px); } }

/* —— 收尾金句定格：定格时末条轻微呼吸高亮 —— */
.chat-marquee.chat-done .chat:last-of-type { animation: none; }
.chat-marquee.chat-done .chat:last-of-type .bubble { animation: doneGlow 2.6s ease-in-out infinite; }
@keyframes doneGlow {
  0%, 100% { box-shadow: 0 6px 18px -10px rgba(59, 130, 246, 0.35); }
  50% { box-shadow: 0 6px 24px -6px rgba(59, 130, 246, 0.55); }
}

/* —— 头部呼吸点 —— */
.dialog-head .dot { animation: breathe 1.6s ease-in-out infinite; }
@keyframes breathe { 0%, 100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.5); } 50% { box-shadow: 0 0 0 5px rgba(52, 211, 153, 0); } }

/* —— 按钮光带 —— */
.btn-primary { position: relative; overflow: hidden; }
.btn-primary::after {
  content: "";
  position: absolute; top: 0; left: -80%;
  width: 45%; height: 100%;
  transform: skewX(-22deg);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.55), transparent);
  animation: shine 3.4s ease-in-out infinite;
}
@keyframes shine { 0%, 55% { left: -80%; } 85%, 100% { left: 140%; } }

/* —— 标准滚动条 —— */
.ticker {
  overflow: hidden;
  background: #0B1F3A;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 3px solid transparent;
  border-image: var(--c-grad) 1;
}
.ticker-track { display: flex; width: max-content; animation: tickerMove 34s linear infinite; }
.ticker:hover .ticker-track { animation-play-state: paused; }
.ticker-group { display: flex; align-items: center; gap: 0; }
.ticker-group span {
  white-space: nowrap;
  padding: 13px 26px;
  font-size: 13px; letter-spacing: 0.08em;
  color: rgba(226, 232, 240, 0.78);
  border-right: 1px solid rgba(148, 163, 184, 0.22);
  font-family: "JetBrains Mono", Consolas, monospace;
}
.ticker-group span:nth-child(2) { color: #93C5FD; }
.ticker-group span:nth-child(3) { color: #A5B4FC; }
@keyframes tickerMove { to { transform: translateX(-50%); } }

/* —— 小屏适配 —— */
@media (max-width: 860px) {
  .nav { height: 70px; }
  .brand-text strong { font-size: 18px; }
  .hero-stats strong { font-size: 34px; }
}
@media (max-width: 560px) {
  .hero-copy h1 { font-size: 29px; line-height: 1.28; }
  .hero-stats strong { font-size: 32px; }
  .metric-no, .service-num { font-size: 34px; }
  .chat-stage { padding: 14px 14px 4px; }
  .bubble { font-size: 13px; }
  .brand-text small { display: none; }
  .ticker-group span { padding: 11px 18px; font-size: 11.5px; }
}

/* —— 聊天换幕过渡 —— */
.chat-stage { transition: opacity 0.5s ease, transform 0.5s ease; }
.chat-stage.stage-fade { opacity: 0; transform: translateY(8px); }

/* —— 卡片标题内的计数数字：预留宽度避免跳动时抖动 —— */
.cost-block h3 .cnt { display: inline-block; min-width: 1.5em; text-align: left; font-variant-numeric: tabular-nums; }

/* ================== 历史中标价：合规运用 vs 盲目套用 ================== */
.compare-grid { display: grid; gap: 18px; }
.compare-card {
  display: grid;
  grid-template-columns: 250px 1fr 1fr;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 18px 40px -34px rgba(11, 31, 58, 0.5);
  transition: box-shadow 0.35s ease, transform 0.35s ease;
}
.compare-card:hover { box-shadow: 0 26px 56px -30px rgba(37, 99, 235, 0.35); transform: translateY(-2px); }
.compare-dim {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  gap: 10px;
  padding: 26px 24px;
  background: linear-gradient(170deg, #F7FAFF, #EDF3FE);
  border-right: 1px dashed #D8E2F2;
  position: relative;
}
.compare-dim::after {
  content: "";
  position: absolute; left: 24px; bottom: 0;
  width: 46px; height: 3px; border-radius: 3px;
  background: var(--c-grad);
}
.compare-no {
  font-family: "JetBrains Mono", Consolas, monospace;
  font-size: 40px; line-height: 1; font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1.2px rgba(59, 130, 246, 0.55);
}
.compare-dim h3 { font-size: 19px; margin: 0; color: var(--c-text); }
.compare-cell {
  display: flex; flex-direction: column; justify-content: center;
  gap: 12px; padding: 24px 26px;
}
.compare-cell + .compare-cell { border-left: 1px dashed var(--c-line); }
.compare-cell p { margin: 0; font-size: 15px; line-height: 1.9; color: var(--c-muted); }
.compare-cell p b { color: #1D4ED8; font-weight: 700; }
.compare-cell p strong {
  background: var(--c-grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-weight: 800;
}
.vs-tag {
  align-self: flex-start;
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 12px; border-radius: 999px;
  font-size: 13px; font-weight: 700; letter-spacing: 0.06em;
}
.vs-tag::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.vs-wrong {
  color: #9F1239;
  background: #FFF1F2;
  border: 1px solid #FFE4E6;
}
.compare-wrong { background: #FFFDFD; }
.compare-wrong p { color: #64748B; }
.vs-right {
  color: #1D4ED8;
  background: #EFF6FF;
  border: 1px solid #DBEAFE;
}
.compare-right { background: linear-gradient(175deg, #F8FBFF, #FFFFFF); }
.compare-right p { color: #334155; }

/* —— 地方财政标准高亮卡片 + 官方徽章 —— */
.std-card-highlight {
  position: relative;
  border: 1.5px solid rgba(220, 38, 38, 0.42);
  background: linear-gradient(180deg, #FFFDFC 0%, #FFF7F6 30%, var(--c-surface) 100%);
  box-shadow: 0 18px 40px -28px rgba(220, 38, 38, 0.45);
}
.std-card-highlight:hover { border-color: rgba(220, 38, 38, 0.7); }
.std-official {
  align-self: flex-start;
  display: inline-flex; align-items: center; gap: 7px;
  margin: 2px 0 10px;
  padding: 4px 11px;
  border-radius: 6px;
  font-size: 12.5px; font-weight: 700; letter-spacing: 0.05em;
  color: #B91C1C;
  background: #FEF2F2;
  border: 1px solid #FECACA;
  box-shadow: inset 0 0 0 2px rgba(254, 242, 242, 0.6);
}
.std-official::before { content: ""; width: 7px; height: 7px; border-radius: 2px; background: #DC2626; }
.std-card-highlight .std-sub { color: #B45309; }

/* —— 对话气泡内强调 —— */
.bubble p strong,
.bubble > strong {
  font-weight: 800;
  background: var(--c-grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.bubble b { color: #1D4ED8; font-weight: 700; }

/* —— 对比模块响应式 —— */
@media (max-width: 1080px) {
  .compare-card { grid-template-columns: 1fr 1fr; }
  .compare-dim { grid-column: 1 / -1; flex-direction: row; align-items: center; gap: 16px; border-right: none; border-bottom: 1px dashed #D8E2F2; }
  .compare-dim::after { left: auto; right: 24px; bottom: 0; width: 90px; }
  .compare-dim h3 { margin: 0; }
}
@media (max-width: 640px) {
  .compare-card { grid-template-columns: 1fr; }
  .compare-dim { padding: 18px 20px; }
  .compare-cell { padding: 18px 20px; }
  .compare-cell + .compare-cell { border-left: none; border-top: 1px dashed var(--c-line); }
  .compare-no { font-size: 32px; }
}

/* ================== 反馈调整：去滚动条 / 加大数字 / 强对话对比 ================== */
/* 隐藏底部滚动标准条 */
.ticker, .ticker-track, .ticker-group { display: none !important; }

/* 核心指标统一样式已统一在前面 .hero-stats .stat-figure 中定义 */

/* 对话气泡：提高对比度，去除渐变强透明文字 */
.bubble {
  background: #E5EDF9 !important;
  color: #0B1F3A !important;
  border-color: #C7D6EC !important;
  font-size: 14.5px;
  line-height: 1.8;
}
.chat-self .bubble {
  background: linear-gradient(155deg, #EEF4FE, #D6E4FA) !important;
  border-color: #A8BEE3 !important;
  font-size: 15.5px !important;
  font-weight: 500;
  color: #0B1F3A !important;
}
.bubble p strong, .bubble > strong,
.bubble-foot strong {
  color: #1D4ED8 !important;
  background: none !important;
  -webkit-background-clip: initial !important;
  background-clip: initial !important;
  font-weight: 800;
}
.bubble b { color: #1D4ED8 !important; font-weight: 700; }
.bubble mark { background: rgba(29, 78, 216, 0.14); color: #1D4ED8; }

/* 价值定位模块 */
.position-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-bottom: 40px;
}
.position-card {
  position: relative;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: 16px;
  padding: 22px 24px 24px;
  box-shadow: 0 14px 36px -28px rgba(11, 31, 58, 0.4);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.position-card:hover { box-shadow: 0 20px 48px -26px rgba(37, 99, 235, 0.35); transform: translateY(-2px); }
.position-card::before {
  content: "";
  position: absolute; top: 0; left: 24px;
  width: 40px; height: 3px; border-radius: 3px;
  background: var(--c-grad);
  background-size: 200% 100%;
  animation: heroGrad 6s ease-in-out infinite;
}
.position-tag {
  display: inline-flex; align-items: center; gap: 6px;
  margin: 10px 0 10px;
  padding: 4px 12px;
  background: var(--c-tag);
  color: var(--c-primary);
  border-radius: 999px;
  font-size: 12.5px; font-weight: 700; letter-spacing: 0.05em;
}
.position-card p { margin: 0; font-size: 15px; line-height: 1.9; color: var(--c-muted); }
.position-card p strong { color: #1D4ED8; font-weight: 700; }
.position-quote {
  margin: 0;
  font-size: clamp(18px, 2.1vw, 24px);
  line-height: 1.6;
  font-weight: 800;
  text-align: center;
  background: var(--c-grad);
  background-size: 200% 100%;
  animation: heroGrad 8s ease-in-out infinite;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  padding: 22px 24px;
  border-top: 1px dashed var(--c-line);
}
@media (max-width: 720px) {
  .position-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .position-card { padding: 18px 18px 20px; }
  .position-quote { padding: 18px 12px; }
}

/* ==================================================
   全量降维升级（意见书 v2）—— 新增组件样式
   ================================================== */
[id] { scroll-margin-top: 88px; }

/* —— 顶部导航：核心服务下拉 —— */
.nav-item.has-dropdown { position: relative; display: inline-flex; align-items: center; }
.nav-item.has-dropdown > a { display: inline-flex; align-items: center; }
.dd-toggle {
  position: relative;
  width: 20px; height: 20px;
  margin-left: 2px; padding: 0;
  background: transparent; border: 0; cursor: pointer;
}
.dd-toggle span {
  position: absolute; top: 4px; left: 2px;
  width: 10px; height: 10px;
  border-right: 2px solid var(--c-muted);
  border-bottom: 2px solid var(--c-muted);
  transform: rotate(45deg);
  transition: transform 0.25s ease, top 0.25s ease, border-color 0.2s ease;
}
.nav-item.has-dropdown:hover .dd-toggle span,
.nav-item.has-dropdown.open .dd-toggle span { top: 7px; transform: rotate(225deg); border-color: var(--c-primary); }

.dropdown {
  position: absolute; top: calc(100% + 8px); left: 50%;
  min-width: 248px; padding: 8px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  transform: translateX(-50%) translateY(8px);
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 90;
}
.dropdown::before { /* 悬停桥接区：消除 链接→面板 之间的空隙断点 */
  content: "";
  position: absolute; top: -10px; left: 0; right: 0; height: 10px;
}
.nav-item.has-dropdown:hover .dropdown,
.nav-item.has-dropdown.open .dropdown {
  opacity: 1; visibility: visible; pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.dropdown a {
  display: flex; align-items: center; gap: 8px;
  width: 100% !important; padding: 10px 14px !important;
  font-size: 14px; font-weight: 500;
  color: var(--c-text) !important;
  border: 0 !important; border-radius: var(--radius-sm);
  transition: background 0.15s ease, color 0.15s ease, padding 0.15s ease;
}
.dropdown a::after { display: none !important; }
.dropdown a::before {
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-cyan));
  opacity: 0; transition: opacity 0.15s ease;
}
.dropdown a:hover { background: var(--c-tag); color: var(--c-primary) !important; padding-left: 18px; }
.dropdown a:hover::before { opacity: 1; }

/* —— 三、认知降维：绝对中立与利益隔离宣言 —— */
.eyebrow-dark {
  display: inline-block;
  font-size: 12px; letter-spacing: 0.18em; font-weight: 700;
  text-transform: uppercase;
  color: #fff; background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 6px 14px; border-radius: var(--radius-pill);
}
.neutral-declare {
  position: relative;
  margin-top: 36px; overflow: hidden;
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, #0B1F3A 0%, #12295C 55%, #1E3A8A 100%);
  color: #fff;
  padding: 38px 42px 34px;
  box-shadow: var(--shadow-md);
}
.neutral-declare::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-accent-2));
}
.neutral-declare-main { display: flex; flex-direction: column; align-items: center; gap: 12px; text-align: center; }
.neutral-declare-main h3 {
  margin: 0; font-size: clamp(22px, 2.6vw, 32px); font-weight: 800; letter-spacing: 0.03em;
}
.neutral-declare-main p { margin: 0; font-size: 15px; color: rgba(255, 255, 255, 0.8); }
.neutral-declare-main p strong { color: #fff; font-weight: 800; font-size: 16px; }
.neutral-declare-list {
  list-style: none; margin: 28px 0 0; padding: 0;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(168px, 1fr)); gap: 12px;
}
.neutral-declare-list li {
  display: flex; flex-direction: column; align-items: flex-start;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 18px 16px;
}
.neutral-declare-list b { font-size: 15px; font-weight: 700; }
.neutral-declare-list i { font-style: normal; font-size: 12.5px; line-height: 1.7; color: rgba(255, 255, 255, 0.62); }
.nd-no, .nd-yes {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 50%;
  font-size: 12px; font-weight: 800; margin-bottom: 10px;
}
.nd-no { color: #FCA5A5; background: rgba(248, 113, 113, 0.16); }
.nd-yes { color: #6EE7B7; background: rgba(16, 185, 129, 0.18); }

/* —— 四、安全降维：审计终身穿透与合规答辩背书 —— */
.audit-shield {
  position: relative;
  margin-top: 44px; overflow: hidden;
  display: grid; grid-template-columns: 1.55fr 1fr; gap: 24px; align-items: center;
  background: linear-gradient(115deg, #FFF7F2 0%, var(--c-surface) 60%);
  border: 1px solid #FCE0C8;
  border-radius: var(--radius-lg);
  padding: 30px 34px;
  box-shadow: var(--shadow-sm);
}
.audit-shield::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 5px;
  background: linear-gradient(180deg, var(--c-accent), var(--c-accent-2));
}
.audit-badge {
  display: inline-block;
  font-size: 11.5px; font-weight: 800; letter-spacing: 0.12em;
  color: #C2410C; background: #FFEDD5;
  border-radius: var(--radius-pill); padding: 6px 14px; margin-bottom: 12px;
}
.audit-shield h3 { margin: 0 0 10px; font-size: clamp(20px, 2.2vw, 26px); font-weight: 800; }
.audit-shield p { margin: 0; color: var(--c-muted); font-size: 15px; line-height: 1.95; }
.audit-shield p strong { color: #C2410C; font-weight: 800; }
.audit-shield-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.audit-shield-list li {
  display: flex; align-items: center; gap: 12px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-size: 13.5px; color: var(--c-text);
}
.audit-shield-list span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 36px; height: 24px; padding: 0 8px;
  font-size: 12px; font-weight: 800; color: #fff;
  background: linear-gradient(135deg, var(--c-accent), var(--c-accent-2));
  border-radius: 8px;
}

/* —— 二、工作降维：天扬智算智能计算闭环模型 —— */
.calc-loop {
  margin: 36px 0 12px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 30px 32px 26px;
  box-shadow: var(--shadow-sm);
}
.calc-loop-head { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 24px; }
.calc-badge {
  font-size: 12px; font-weight: 800; letter-spacing: 0.06em;
  color: #fff;
  background: linear-gradient(135deg, var(--c-accent), var(--c-accent-2));
  border-radius: var(--radius-pill); padding: 7px 16px;
  box-shadow: 0 10px 20px -10px rgba(249, 115, 22, 0.6);
}
.calc-loop-head h3 { margin: 0; font-size: clamp(20px, 2.2vw, 26px); font-weight: 800; }
.calc-in { display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap; }
.calc-in-arrow { font-size: 20px; font-weight: 800; color: var(--c-primary); }
.calc-node {
  flex: 1; min-width: 210px; max-width: 300px;
  display: flex; flex-direction: column; gap: 8px;
  background: #F6F9FE; border: 1px solid #DDE7F7;
  border-top: 3px solid var(--c-primary);
  border-radius: var(--radius-md);
  padding: 18px 18px 16px;
  box-shadow: var(--shadow-sm);
}
.calc-node-rule { border-top-color: var(--c-success); }
.calc-node-peel { border-top-color: var(--c-accent); }
.calc-node-tag { font-size: 11.5px; font-weight: 800; letter-spacing: 0.1em; color: var(--c-muted); }
.calc-node b { font-size: 14.5px; line-height: 1.6; color: var(--c-text); }
.calc-mult { font-size: 24px; font-weight: 800; color: #B8C6DC; flex-shrink: 0; }
.calc-engine { display: flex; flex-direction: column; align-items: center; gap: 12px; margin: 18px 0 16px; }
.calc-engine-arrow { font-size: 22px; font-weight: 800; color: var(--c-primary); line-height: 1; }
.calc-engine-core {
  position: relative;
  display: flex; align-items: center; gap: 16px;
  width: 100%; max-width: 780px;
  background: linear-gradient(120deg, #0B1F3A 0%, #16307A 100%);
  color: #fff; border-radius: var(--radius-md);
  padding: 18px 22px;
  box-shadow: var(--shadow-md);
}
.calc-engine-core::after {
  content: ""; position: absolute; left: 22px; right: 22px; bottom: 0; height: 3px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-accent-2));
  border-radius: 3px 3px 0 0;
}
.calc-engine-core b { font-size: 15px; font-weight: 800; letter-spacing: 0.02em; line-height: 1.7; }
.calc-engine-core i { font-style: normal; font-size: 12.5px; color: rgba(255, 255, 255, 0.6); }
.ce-icon {
  flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px;
  font-size: 12px; font-weight: 800; color: #0B1F3A;
  background: linear-gradient(135deg, var(--c-accent), var(--c-accent-2));
  border-radius: 12px;
}
.calc-out { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 10px; }
.calc-out-tag {
  font-size: 11.5px; font-weight: 800; letter-spacing: 0.12em;
  color: #0E7490; background: #CFFAFE;
  border-radius: var(--radius-pill); padding: 7px 14px;
}
.calc-out-chip {
  font-size: 13.5px; font-weight: 600; color: var(--c-text);
  background: #F8FAFE; border: 1px solid var(--c-line);
  border-radius: var(--radius-pill); padding: 8px 16px;
  box-shadow: var(--shadow-sm);
}
.calc-loop-quote {
  margin: 24px 0 0;
  padding: 18px 22px;
  background: var(--c-tag);
  border-left: 4px solid var(--c-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--c-text); font-size: 15px; line-height: 1.95;
}
.calc-loop-quote strong { color: #1D4ED8; font-weight: 800; }

/* —— 五、经营全景：数字政府全周期造价总控图谱 —— */
.total-map {
  position: relative;
  margin-top: 46px; overflow: hidden;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 36px 36px 32px;
  box-shadow: var(--shadow-sm);
}
.total-map::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-cyan) 60%, var(--c-accent));
}
.total-map-head h3 { margin: 14px 0 0; font-size: clamp(22px, 2.6vw, 30px); font-weight: 800; }
.total-map-quote {
  margin: 20px 0 26px;
  background: linear-gradient(120deg, #0B1F3A 0%, #12306F 100%);
  border-radius: var(--radius-md);
  padding: 18px 24px;
}
.total-map-quote p { margin: 0; color: rgba(255, 255, 255, 0.85); font-size: 16px; line-height: 1.9; }
.total-map-quote strong { color: #fff; font-weight: 800; }
.total-map-quote b { color: #FCD34D; font-weight: 700; }
.total-map-track { display: grid; gap: 20px; }
.tm-stage-tag, .tm-scope-label {
  display: inline-block;
  font-size: 11.5px; font-weight: 800; letter-spacing: 0.12em;
  color: var(--c-primary); background: var(--c-tag);
  border-radius: var(--radius-pill); padding: 6px 14px; margin-bottom: 14px;
}
.tm-cycle { list-style: none; margin: 0; padding: 0; display: flex; gap: 6px; flex-wrap: wrap; }
.tm-cycle li {
  flex: 1; min-width: 128px;
  display: flex; flex-direction: column; align-items: flex-start;
  background: #F8FAFE; border: 1px solid var(--c-line);
  border-radius: var(--radius-md); padding: 16px 14px;
}
.tm-cycle li > span {
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 26px; border-radius: 50%;
  color: #fff; font-size: 13px; font-weight: 800;
  background: linear-gradient(135deg, var(--c-primary), var(--c-cyan));
  margin-bottom: 10px;
}
.tm-cycle b { font-size: 15px; font-weight: 700; }
.tm-cycle i { font-style: normal; font-size: 12.5px; line-height: 1.6; color: var(--c-muted); }
.tm-cycle .tm-arrow {
  flex: 0 0 auto; min-width: 20px; align-self: center;
  justify-content: center;
  background: transparent; border: 0; padding: 0;
  font-size: 20px; font-weight: 800; color: #B8C6DC;
}
.tm-scope {
  background: #F8FAFE;
  border: 1px dashed #C6D5EE;
  border-radius: var(--radius-md);
  padding: 18px 20px 16px;
}

/* —— 六、实战案例脱敏拆解 —— */
.case-breakdown {
  position: relative;
  margin-top: 46px; overflow: hidden;
  display: grid; grid-template-columns: 1.5fr auto; gap: 28px; align-items: center;
  background: linear-gradient(115deg, var(--c-surface) 0%, #F1F6FF 100%);
  border: 1px solid #D6E4F8;
  border-radius: var(--radius-lg);
  padding: 30px 34px;
  box-shadow: var(--shadow-sm);
}
.case-breakdown::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 5px;
  background: linear-gradient(180deg, var(--c-primary), var(--c-cyan));
}
.case-breakdown-tag {
  display: inline-block;
  font-size: 11.5px; font-weight: 800; letter-spacing: 0.1em;
  color: #1D4ED8; background: #DBEAFE;
  border-radius: var(--radius-pill); padding: 6px 14px; margin-bottom: 14px;
}
.case-breakdown h3 { margin: 0 0 10px; font-size: clamp(18px, 2vw, 24px); font-weight: 800; }
.case-breakdown p { margin: 0; color: var(--c-muted); font-size: 15px; line-height: 1.95; }
.case-breakdown p strong { color: var(--c-text); }
.case-breakdown p b { color: #1D4ED8; }
.case-breakdown-stat {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  min-width: 220px;
  background: linear-gradient(150deg, #0B1F3A 0%, #16307A 100%);
  color: #fff; border-radius: var(--radius-md);
  padding: 28px 26px;
  box-shadow: var(--shadow-md);
  text-align: center;
}
.case-stat-num {
  font-size: clamp(42px, 4vw, 58px); font-weight: 800; line-height: 1;
  color: #fff;
}
.case-stat-num sup { color: var(--c-accent); font-size: 0.55em; margin-left: 2px; }
.case-stat-label { font-size: 13px; color: rgba(255, 255, 255, 0.72); }
.case-stat-result {
  font-size: 12.5px; font-weight: 800; letter-spacing: 0.08em;
  color: #FFEDD5; background: rgba(249, 115, 22, 0.22);
  border-radius: var(--radius-pill); padding: 6px 14px; margin-top: 6px;
}

/* —— 六、行业洞察“三段式”：政策风向 / 痛点影响 / 天扬解法 —— */
.insight-three { display: grid; gap: 12px; margin-top: 16px; }
.insight-step { background: #F8FAFE; border-radius: var(--radius-sm); padding: 12px 14px; }
.insight-step p { margin: 0; font-size: 13.5px; line-height: 1.75; color: var(--c-muted); }
.step-label {
  display: inline-block;
  font-size: 11px; font-weight: 800; letter-spacing: 0.08em;
  border-radius: var(--radius-pill); padding: 3px 10px; margin-bottom: 8px;
}
.step-label-policy { color: #1D4ED8; background: #DBEAFE; }
.step-label-pain { color: #C2410C; background: #FFEDD5; }
.step-label-solve { color: #047857; background: #D1FAE5; }

/* —— 六、信任背书：关于天扬 —— */
.trust-cred {
  margin-top: 26px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-left: 4px solid var(--c-primary);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
}
.trust-cred h4 { margin: 0 0 16px; font-size: 15px; font-weight: 800; }
.trust-cred-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.trust-cred-list li { display: grid; grid-template-columns: 96px 1fr; gap: 12px; align-items: start; }
.trust-cred-list b { font-size: 14px; font-weight: 800; color: #1D4ED8; padding-top: 2px; }
.trust-cred-list span { font-size: 13.5px; line-height: 1.8; color: var(--c-muted); }

/* —— 关于天扬：04 全周期总控 —— */
.metric-card-accent {
  border-color: rgba(249, 115, 22, 0.4);
  background: linear-gradient(180deg, #FFF9F5 0%, var(--c-surface) 100%);
}
.metric-card-accent .metric-no {
  background: linear-gradient(135deg, var(--c-accent), var(--c-accent-2));
  -webkit-background-clip: text;
  background-clip: text;
}

/* —— 新板块统一入场动画 —— */
.calc-loop, .audit-shield, .total-map, .neutral-declare, .case-breakdown, .trust-cred {
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.calc-loop.in-view, .audit-shield.in-view, .total-map.in-view,
.neutral-declare.in-view, .case-breakdown.in-view, .trust-cred.in-view {
  opacity: 1; transform: translateY(0);
}

/* —— 移动端适配（与主导航 860px 断点对齐） —— */
@media (max-width: 860px) {
  .nav-item.has-dropdown { width: 100%; justify-content: space-between; border-bottom: 1px solid var(--c-line); }
  .nav-item.has-dropdown > a { flex: 1; width: auto !important; border-bottom: 0 !important; }
  .dd-toggle { width: 40px; height: 44px; margin: 0; }
  .dropdown {
    position: static; left: auto; top: auto; min-width: 0;
    transform: none;
    background: #F2F6FC;
    border: 0; box-shadow: none;
    width: 100%; padding: 0 16px; margin: 2px 0 10px;
    opacity: 1; visibility: hidden; pointer-events: auto;
    max-height: 0; overflow: hidden;
    transition: max-height 0.25s ease, padding 0.25s ease;
  }
  .dropdown::before { display: none; }
  .nav-item.has-dropdown.open .dropdown {
    visibility: visible;
    max-height: 340px;
    padding: 6px 16px 8px;
  }
  .dropdown a { font-size: 14px; }
  .audit-shield { grid-template-columns: 1fr; }
  .case-breakdown { grid-template-columns: 1fr; }
  .case-breakdown-stat { min-width: 0; }
}
@media (max-width: 720px) {
  .calc-loop { padding: 24px 20px 22px; }
  .calc-in { flex-direction: column; align-items: stretch; }
  .calc-in-arrow, .calc-mult { transform: rotate(90deg); align-self: center; padding: 2px 0; }
  .calc-node { max-width: none; }
  .neutral-declare { padding: 30px 22px 26px; }
  .audit-shield, .total-map, .case-breakdown { padding: 26px 22px; }
  .trust-cred-list li { grid-template-columns: 1fr; gap: 4px; }
}