/* =========================================================
   松丰咨询 官网样式表
   配色与排版规范来自《松丰咨询公司介绍》PPT 实际用色
   圆角 3px / 不使用阴影 / 深墨绿 + 亮绿 + 浅绿 + 灰
   ========================================================= */

/* ---------- 1. 设计变量 ---------- */
:root {
  /* 品牌绿 */
  --g900: #0A3324;   /* 最深，深底叠层 */
  --g800: #0E422D;   /* 主色：深底、标题 */
  --g700: #1A5B42;   /* 次级深绿 */
  --g600: #1C6B4A;   /* 中间阶 */
  --g500: #35A06F;   /* 强调色：编号、标签、下划线 */
  --g300: #A9CDBD;   /* 浅绿装饰：边框、分隔线 */
  --g100: #EFF5F1;   /* 浅绿卡片底 */
  --g50:  #F6FAF8;   /* 极浅绿底 */

  /* 中性色 */
  --ink:   #1A1A1A;  /* 正文 */
  --gray:  #808080;  /* 次要文字 */
  --gray2: #A8A8A8;  /* 更次要 */
  --slate: #44546A;  /* 说明文字 */
  --line:  #E7E6E6;  /* 分隔线 */
  --white: #FFFFFF;

  /* 排版 */
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
          "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;

  /* 布局 */
  --wrap: 1180px;
  --gap: 28px;
  --radius: 3px;
  --pad-sec: 96px;      /* 桌面端区块上下留白 */
}

/* ---------- 2. 基础重置 ---------- */
* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5 {
  margin: 0;
  font-weight: 600;
  line-height: 1.35;
  color: var(--g800);
  letter-spacing: .01em;
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

a { color: var(--g600); text-decoration: none; transition: color .18s ease; }
a:hover { color: var(--g500); }

img { max-width: 100%; height: auto; display: block; border: 0; }

ul, ol { margin: 0; padding: 0; }

button { font-family: inherit; cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--g500);
  outline-offset: 3px;
  border-radius: 2px;
}

/* 无障碍：仅屏幕阅读器可见 */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 200;
  background: var(--g800); color: #fff; padding: 10px 16px;
  border-radius: var(--radius); transition: top .2s ease;
}
.skip-link:focus { top: 12px; color: #fff; }

/* ---------- 3. 布局容器 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: var(--pad-sec) 0; }
.section--tight { padding: 64px 0; }
.section--alt { background: var(--g50); }
.section--dark { background: var(--g800); color: #fff; }
.section--dark h1,
.section--dark h2,
.section--dark h3 { color: #fff; }

.rule-top { border-top: 1px solid var(--line); }

/* ---------- 4. 区块标题 ---------- */
.eyebrow {
  display: block;
  font-size: 13px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--g500);
  margin-bottom: 14px;
  font-weight: 600;
}
.section--dark .eyebrow { color: var(--g300); }

/* PPT 中的 42×2 亮绿短杠 */
.accent-bar {
  width: 42px; height: 2px;
  background: var(--g500);
  border: 0; margin: 0 0 20px;
}
.accent-bar--center { margin-left: auto; margin-right: auto; }

.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-title {
  font-size: 34px;
  line-height: 1.35;
  margin-bottom: 18px;
}
.section-desc { font-size: 16px; color: var(--slate); line-height: 1.9; }
.section--dark .section-desc { color: var(--g300); }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--g800); color: #fff; border-color: var(--g800); }
.btn-primary:hover { background: var(--g500); border-color: var(--g500); color: #fff; }

.btn-outline { background: transparent; color: var(--g800); border-color: var(--g300); }
.btn-outline:hover { background: var(--g100); border-color: var(--g500); color: var(--g800); }

.btn-accent { background: var(--g500); color: #fff; border-color: var(--g500); }
.btn-accent:hover { background: #2c8a5e; border-color: #2c8a5e; color: #fff; }

.btn-light { background: #fff; color: var(--g800); border-color: #fff; }
.btn-light:hover { background: var(--g300); border-color: var(--g300); color: var(--g800); }

.btn-ghost-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.45); }
.btn-ghost-light:hover { background: rgba(255,255,255,.12); color: #fff; border-color: #fff; }

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- 6. 页头导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .2s ease;
}
.site-header.is-scrolled { box-shadow: 0 1px 0 rgba(14,66,45,.08); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
}
.brand { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.brand img { height: 34px; width: auto; }
.brand-sub {
  font-size: 11px; letter-spacing: .18em; color: var(--gray2);
  border-left: 1px solid var(--line); padding-left: 12px;
  text-transform: uppercase; line-height: 1.4;
}

.nav { display: flex; align-items: center; gap: 34px; }
.nav-menu { display: flex; align-items: center; gap: 30px; list-style: none; }
.nav-menu a {
  position: relative;
  font-size: 15px;
  color: var(--ink);
  padding: 6px 0;
  font-weight: 500;
}
.nav-menu a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 2px; background: var(--g500);
  transform: scaleX(0); transform-origin: left;
  transition: transform .2s ease;
}
.nav-menu a:hover::after { transform: scaleX(1); }
.nav-menu a[aria-current="page"] { color: var(--g800); }
.nav-menu a[aria-current="page"]::after { transform: scaleX(1); }

.nav-cta { padding: 10px 22px; font-size: 14px; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  background: none; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 0; position: relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  position: absolute; left: 50%; width: 18px; height: 2px;
  background: var(--g800); transform: translateX(-50%);
  transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle span { top: 50%; margin-top: -1px; }
.nav-toggle span::before { content: ""; left: 0; top: -6px; transform: none; }
.nav-toggle span::after  { content: ""; left: 0; top: 6px;  transform: none; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: rotate(45deg); top: 0; }
.nav-toggle[aria-expanded="true"] span::after  { transform: rotate(-45deg); top: 0; }

/* ---------- 7. 首屏 Hero ---------- */
.hero {
  position: relative;
  background: var(--g800);
  color: #fff;
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; right: -180px; top: -140px;
  width: 620px; height: 620px; border-radius: 50%;
  background: var(--g700); opacity: .28;
}
.hero::before {
  content: ""; position: absolute; right: 60px; bottom: -260px;
  width: 460px; height: 460px; border-radius: 50%;
  border: 1px solid var(--g500); opacity: .3;
}
.hero-inner {
  position: relative; z-index: 2;
  padding: 116px 0 108px;
  max-width: 780px;
}
.hero .eyebrow { color: var(--g300); }
.hero h1 {
  color: #fff;
  font-size: 52px;
  line-height: 1.28;
  letter-spacing: .01em;
  margin-bottom: 26px;
}
.hero-sub {
  font-size: 18px;
  color: var(--g300);
  line-height: 1.85;
  margin-bottom: 40px;
  max-width: 640px;
}

/* 首页 Hero 下方的数据条 */
.hero-stats {
  position: relative; z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(169,205,189,.28);
}
.hero-stats .stat { padding: 30px 0; }
.hero-stats .stat + .stat { border-left: 1px solid rgba(169,205,189,.28); padding-left: 30px; }
.hero-stats .stat-num { color: #fff; }
.hero-stats .stat-label { color: var(--g300); }

/* 子页 Hero */
.page-hero {
  background: var(--g800);
  color: #fff;
  padding: 74px 0 62px;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; right: -120px; bottom: -200px;
  width: 520px; height: 520px; border-radius: 50%;
  background: var(--g700); opacity: .3;
}
.page-hero .wrap { position: relative; z-index: 2; }
.page-hero h1 { color: #fff; font-size: 38px; margin: 14px 0 16px; line-height: 1.35; }
.page-hero p { color: var(--g300); font-size: 16px; max-width: 720px; margin: 0; }

.crumb { font-size: 13px; color: var(--g300); letter-spacing: .04em; }
.crumb a { color: var(--g300); }
.crumb a:hover { color: #fff; }
.crumb span { margin: 0 8px; opacity: .6; }

/* ---------- 8. 数据 ---------- */
.stat-num {
  font-size: 46px;
  font-weight: 600;
  line-height: 1.1;
  color: var(--g800);
  letter-spacing: .01em;
}
.stat-num .unit { font-size: 18px; font-weight: 500; margin-left: 6px; color: var(--g600); }
.stat-label { font-size: 14px; color: var(--gray); margin-top: 6px; }

.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat-strip .stat { padding: 32px 28px; background: #fff; }
.stat-strip .stat + .stat { border-left: 1px solid var(--line); }

/* ---------- 9. 网格与卡片 ---------- */
.grid { display: grid; gap: var(--gap); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 30px;
  transition: border-color .2s ease, background .2s ease;
}
.card:hover { border-color: var(--g300); }
.card h3 { font-size: 19px; margin-bottom: 12px; }
.card p { font-size: 15px; color: var(--slate); line-height: 1.85; }

.card--soft { background: var(--g50); border-color: transparent; }
.card--soft:hover { border-color: var(--g300); background: var(--g100); }

/* 带左侧亮绿竖线的卡片（PPT 06 / 07 页样式） */
.card-line { border: 1px solid var(--line); border-left: 3px solid var(--g600); border-radius: var(--radius); padding: 30px 28px; background: #fff; }
.card-line:hover { border-left-color: var(--g500); }

/* 编号卡（PPT 01/02/03 编号样式） */
.num {
  font-size: 22px;
  font-weight: 600;
  color: var(--g500);
  line-height: 1;
  letter-spacing: .02em;
}
.num-lg { font-size: 30px; }
.num-row { display: flex; align-items: baseline; gap: 16px; margin-bottom: 10px; }

/* 段落内的小标题（左竖线） */
.item-bar { display: flex; gap: 14px; }
.item-bar::before {
  content: ""; flex: 0 0 4px; align-self: stretch;
  background: var(--g500); border-radius: 1px; min-height: 22px;
}
.item-bar h4 { font-size: 16px; margin-bottom: 6px; }
.item-bar p { font-size: 14px; color: var(--slate); line-height: 1.8; }

/* 列表（PPT 中的 · 列表） */
.list-dot { list-style: none; }
.list-dot li { position: relative; padding-left: 16px; font-size: 15px; line-height: 2; color: var(--ink); }
.list-dot li::before {
  content: ""; position: absolute; left: 0; top: .82em;
  width: 4px; height: 4px; background: var(--g500); border-radius: 50%;
}

.list-check { list-style: none; }
.list-check li { position: relative; padding-left: 26px; font-size: 15px; line-height: 1.9; margin-bottom: 8px; }
.list-check li::before {
  content: ""; position: absolute; left: 4px; top: .58em;
  width: 9px; height: 5px; border-left: 2px solid var(--g500); border-bottom: 2px solid var(--g500);
  transform: rotate(-45deg);
}

/* ---------- 10. 业务线三栏（PPT 04 页） ---------- */
.lanes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.lane { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.lane-head {
  background: var(--g600); color: #fff;
  padding: 14px 20px; font-size: 15px; font-weight: 500;
  display: flex; align-items: center; gap: 10px;
}
.lane-head .lane-key {
  font-size: 12px; font-weight: 600; letter-spacing: .1em;
  background: rgba(255,255,255,.18); padding: 2px 8px; border-radius: 2px;
}
.lane-list { list-style: none; }
.lane-list li {
  padding: 14px 20px; font-size: 15px; color: var(--g800);
  border-bottom: 1px solid var(--line);
  transition: background .18s ease;
}
.lane-list li:last-child { border-bottom: 0; }
.lane-list li:hover { background: var(--g50); }
.lane-list li::before { content: ""; display: inline-block; width: 4px; height: 4px; background: var(--g500); border-radius: 50%; margin-right: 10px; vertical-align: middle; }

/* ---------- 11. 流程时间线（PPT 11 页） ---------- */
.timeline { border-top: 1px solid var(--line); }
.timeline-item {
  display: grid; grid-template-columns: 180px 1fr; gap: 28px;
  padding: 24px 0; border-bottom: 1px solid var(--line);
  align-items: start;
}
.timeline-item .tl-title { font-size: 16px; font-weight: 600; color: var(--g800); }
.timeline-item .tl-desc { font-size: 15px; color: var(--slate); line-height: 1.85; }
.timeline-item .tl-week {
  display: inline-block; margin-top: 8px; font-size: 12px;
  color: var(--g600); background: var(--g100); border-radius: 2px; padding: 2px 8px;
}

/* 竖向历程（关于我们） */
.history { position: relative; padding-left: 26px; }
.history::before { content: ""; position: absolute; left: 5px; top: 8px; bottom: 8px; width: 1px; background: var(--g300); }
.history-item { position: relative; padding-bottom: 34px; }
.history-item:last-child { padding-bottom: 0; }
.history-item::before {
  content: ""; position: absolute; left: -26px; top: 8px;
  width: 11px; height: 11px; border-radius: 50%;
  background: #fff; border: 2px solid var(--g500);
}
.history-year { font-size: 15px; font-weight: 600; color: var(--g500); letter-spacing: .04em; }
.history-item h4 { font-size: 17px; margin: 4px 0 6px; }
.history-item p { font-size: 15px; color: var(--slate); line-height: 1.85; }

/* ---------- 12. 案例表格 ---------- */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.data {
  width: 100%; border-collapse: collapse;
  font-size: 15px; background: #fff; min-width: 560px;
}
table.data thead th {
  background: var(--g100); color: var(--g800);
  text-align: left; font-weight: 600; font-size: 14px;
  padding: 14px 18px; border-bottom: 1px solid var(--g300);
  white-space: nowrap;
}
table.data td {
  padding: 14px 18px; border-bottom: 1px solid var(--line);
  color: var(--ink); vertical-align: top;
}
table.data tbody tr:hover td { background: var(--g50); }
table.data td.name { font-weight: 500; color: var(--g800); white-space: nowrap; }
table.data td.muted { color: var(--gray); font-size: 14px; }

/* 项目卡网格（案例） */
.proj-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.proj {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px; background: #fff;
  transition: border-color .18s ease, background .18s ease;
}
.proj:hover { border-color: var(--g300); background: var(--g50); }
.proj .pj-name { font-size: 15px; font-weight: 500; color: var(--g800); display: flex; align-items: center; gap: 8px; }
.proj .pj-name::before { content: ""; width: 4px; height: 4px; background: var(--g500); border-radius: 50%; flex: 0 0 4px; }
.proj .pj-meta { font-size: 13px; color: var(--gray); margin-top: 4px; }

/* 标签 */
.tag {
  display: inline-block; font-size: 12px; letter-spacing: .06em;
  background: var(--g100); color: var(--g600);
  border-radius: 2px; padding: 3px 10px;
}
.tag--solid { background: var(--g600); color: #fff; }

/* ---------- 13. 三级质控面板（PPT 13 页） ---------- */
.qa-panel { background: var(--g100); border-radius: var(--radius); padding: 34px 32px; }
.qa-panel h3 { font-size: 18px; margin-bottom: 22px; }
.qa-step {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px 20px;
  font-size: 15px; color: var(--g800); font-weight: 500;
}
.qa-step--final { background: var(--g800); border-color: var(--g800); color: #fff; }
.qa-arrow { display: flex; justify-content: center; padding: 8px 0; }
.qa-arrow span { width: 12px; height: 12px; border-right: 2px solid var(--g600); border-bottom: 2px solid var(--g600); transform: rotate(45deg); }
.qa-note { font-size: 14px; color: var(--slate); line-height: 1.8; margin-top: 20px; }

/* ---------- 14. 新闻 ---------- */
.news-list { list-style: none; }
.news-item {
  display: grid; grid-template-columns: 116px 1fr; gap: 26px;
  padding: 26px 0; border-bottom: 1px solid var(--line);
  align-items: start;
}
.news-item:first-child { border-top: 1px solid var(--line); }
.news-date { font-size: 14px; color: var(--gray); letter-spacing: .04em; }
.news-date strong { display: block; font-size: 26px; font-weight: 600; color: var(--g800); line-height: 1.2; letter-spacing: 0; }
.news-body h3 { font-size: 18px; margin-bottom: 8px; }
.news-body h3 a { color: var(--g800); }
.news-body h3 a:hover { color: var(--g500); }
.news-body p { font-size: 15px; color: var(--slate); line-height: 1.8; }
.news-cat { margin-bottom: 10px; }

.news-layout { display: grid; grid-template-columns: 1fr 280px; gap: 56px; align-items: start; }
/* 吸附应用在整个 aside 上。此前把 sticky 分别写在两个 .side-card 的
   内联样式里（top:96px / top:330px），一旦第一张卡高于 234px，滚动时
   第二张就会叠到第一张上——改为整体吸附后不存在这个约束。 */
.news-aside { position: sticky; top: 96px; align-self: start; }
.side-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; }
.side-card h3 { font-size: 16px; margin-bottom: 16px; }
.side-list { list-style: none; }
.side-list li { border-bottom: 1px solid var(--line); }
.side-list li:last-child { border-bottom: 0; }
.side-list a { display: flex; justify-content: space-between; gap: 12px; padding: 12px 0; font-size: 15px; color: var(--ink); }
.side-list a:hover { color: var(--g500); }
.side-list .count { color: var(--gray2); font-size: 13px; }
.side-list li.is-active a { color: var(--g800); font-weight: 600; }

/* ---------- 15. 折叠问答 ---------- */
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%; background: none; border: 0; text-align: left;
  padding: 22px 40px 22px 0; position: relative;
  font-size: 17px; font-weight: 500; color: var(--g800); line-height: 1.6;
}
.faq-q::after {
  content: ""; position: absolute; right: 8px; top: 50%; margin-top: -1px;
  width: 12px; height: 2px; background: var(--g500);
}
.faq-q::before {
  content: ""; position: absolute; right: 13px; top: 50%;
  width: 2px; height: 12px; margin-top: -6px; background: var(--g500);
  transition: transform .2s ease;
}
.faq-q[aria-expanded="true"]::before { transform: scaleY(0); }
.faq-a { display: none; padding: 0 40px 24px 0; }
.faq-a p { font-size: 15px; color: var(--slate); line-height: 1.9; }
.is-open .faq-a { display: block; }

/* 新闻条目复用折叠组件：去掉标题额外上边距 */
.news-item .faq-q { padding-top: 4px; font-size: 18px; }
.news-item .faq-a { padding-bottom: 6px; }

/* ---------- 16. CTA 通栏 ---------- */
.cta-band {
  background: var(--g800);
  color: #fff;
  border-radius: var(--radius);
  padding: 60px 56px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 40px; flex-wrap: wrap;
  position: relative; overflow: hidden;
}
.cta-band::after {
  content: ""; position: absolute; right: -80px; top: -120px;
  width: 360px; height: 360px; border-radius: 50%;
  background: var(--g500); opacity: .16;
}
.cta-band > * { position: relative; z-index: 2; }
.cta-band h2 { color: #fff; font-size: 28px; margin-bottom: 10px; }
.cta-band p { color: var(--g300); margin: 0; font-size: 15px; }

/* ---------- 17. 页脚 ---------- */
.site-footer { background: var(--g900); color: var(--g300); padding: 68px 0 0; }
.footer-main {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 44px;
  padding-bottom: 52px;
}
.footer-brand img { height: 34px; width: auto; margin-bottom: 20px; }
.footer-brand p { font-size: 14px; line-height: 1.9; color: var(--g300); max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 18px; letter-spacing: .02em; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { font-size: 14px; color: var(--g300); }
.footer-col a:hover { color: #fff; }
.footer-col p { font-size: 14px; line-height: 1.9; color: var(--g300); margin: 0 0 8px; }
.footer-bottom {
  border-top: 1px solid rgba(169,205,189,.2);
  padding: 22px 0; display: flex; justify-content: space-between;
  gap: 20px; flex-wrap: wrap; font-size: 13px; color: var(--g300);
}
.footer-bottom a { color: var(--g300); }
.footer-bottom a:hover { color: #fff; }

/* ---------- 18. 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.info-row { display: flex; gap: 18px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.info-row:first-of-type { border-top: 1px solid var(--line); }
.info-ico {
  flex: 0 0 42px; width: 42px; height: 42px;
  border-radius: var(--radius); background: var(--g100);
  display: flex; align-items: center; justify-content: center;
}
.info-ico svg { width: 20px; height: 20px; stroke: var(--g600); fill: none; stroke-width: 1.8; }
.info-row h4 { font-size: 15px; margin-bottom: 4px; }
.info-row p { font-size: 15px; color: var(--slate); margin: 0; line-height: 1.75; }

.form-field { margin-bottom: 20px; }
.form-field label { display: block; font-size: 14px; color: var(--g800); margin-bottom: 8px; font-weight: 500; }
.form-field .req { color: var(--g500); margin-left: 3px; }
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%; font-family: inherit; font-size: 15px; color: var(--ink);
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px 14px; transition: border-color .18s ease;
}
.form-field textarea { min-height: 130px; resize: vertical; line-height: 1.7; }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus { outline: none; border-color: var(--g500); }
.form-note { font-size: 13px; color: var(--gray); margin-top: 14px; line-height: 1.7; }

/* 直接发邮件：给不想填表、或手机没配邮件客户端的访客一条更短的路 */
.mail-direct {
  background: var(--g50);
  border: 1px solid var(--g100);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 26px;
}
.mail-direct__label { font-size: 13px; color: var(--gray); margin-bottom: 8px; }
.mail-direct__row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.mail-direct__addr {
  font-size: 15px; color: var(--g800); font-weight: 500; letter-spacing: .3px;
  border-bottom: 1px solid var(--g300); padding-bottom: 1px;
}
.mail-direct__addr:hover { border-bottom-color: var(--g500); }
.mail-direct__copy {
  font-family: inherit; font-size: 12px; color: var(--g800);
  background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 5px 12px; cursor: pointer;
  transition: border-color .2s ease, background .2s ease, color .2s ease;
}
.mail-direct__copy:hover { border-color: var(--g500); }
.mail-direct__copy.is-done { background: var(--g800); border-color: var(--g800); color: var(--white); }

.map-embed {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--g50); overflow: hidden;
}
.map-embed iframe { display: block; width: 100%; height: 360px; border: 0; }
.map-placeholder {
  height: 320px; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 10px;
  color: var(--gray); font-size: 14px; text-align: center; padding: 20px;
  background: repeating-linear-gradient(45deg, var(--g50), var(--g50) 12px, var(--g100) 12px, var(--g100) 24px);
}

/* ---------- 18b. 服务详情页组件 ---------- */
/* 深色业务线面板 + 编号交付清单（对应 PPT 05 页版式） */
.svc-grid { display: grid; grid-template-columns: 288px 1fr; gap: 44px; align-items: start; }
.svc-panel { background: var(--g800); color: #fff; border-radius: var(--radius); padding: 32px 28px; }
.svc-panel .eyebrow-sm { display: block; font-size: 13px; letter-spacing: .16em; color: var(--g300); margin-bottom: 14px; }
.svc-panel h3 { color: #fff; font-size: 24px; line-height: 1.35; margin-bottom: 20px; }
.svc-panel p { color: var(--g300); font-size: 14px; line-height: 1.9; margin: 0; }
.svc-panel .accent-bar { margin-bottom: 18px; }

.svc-list { list-style: none; }
.svc-list > li { display: grid; grid-template-columns: 62px 1fr; padding: 22px 0; border-bottom: 1px solid var(--line); }
.svc-list > li:first-child { border-top: 1px solid var(--line); }
.svc-list .sn { color: var(--g500); font-size: 15px; font-weight: 600; letter-spacing: .04em; }
.svc-list h4 { font-size: 16px; margin-bottom: 8px; }
.svc-list p { font-size: 15px; color: var(--slate); line-height: 1.85; margin: 0; }

/* 顶部亮绿描边卡（对应 PPT 08 页四原则） */
.card-top { background: #fff; border: 1px solid var(--line); border-top: 3px solid var(--g600); border-radius: var(--radius); padding: 28px 26px; }
.card-top .num-lg { margin-bottom: 12px; }
.card-top h4 { font-size: 17px; margin-bottom: 10px; }
.card-top p { font-size: 15px; color: var(--slate); line-height: 1.85; margin: 0; }
.card-top .short-bar { width: 40px; height: 2px; background: var(--g500); margin: 12px 0 14px; }

/* 监管条文清单（对应 PPT 07 页） */
.reg-list { display: grid; gap: 16px; }
.reg-item {
  background: #fff; border: 1px solid var(--line); border-left: 3px solid var(--g600);
  border-radius: var(--radius); padding: 24px 28px;
  display: grid; grid-template-columns: 60px 1fr; gap: 18px;
}
.reg-item .rn { color: var(--g500); font-weight: 600; font-size: 15px; letter-spacing: .04em; }
.reg-item h4 { font-size: 16px; margin-bottom: 8px; }
.reg-item p { font-size: 14.5px; color: var(--slate); line-height: 1.85; margin: 0; }

/* 高频问询点（对应 PPT 09 页） */
.q-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 48px; }
.q-item { display: grid; grid-template-columns: 42px 1fr; padding: 18px 0; border-bottom: 1px solid var(--line); }
.q-item .qn { color: var(--g500); font-weight: 600; font-size: 15px; }
.q-item h4 { font-size: 15.5px; margin: 0 0 6px; color: var(--ink); }
.q-item p { font-size: 14px; color: var(--slate); line-height: 1.75; margin: 0; }

/* 服务锚点定位时留出页头高度 */
.anchor { scroll-margin-top: 88px; }

/* ---------- 19. 杂项 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.split--wide-left { grid-template-columns: 1.15fr .85fr; }
.panel-soft { background: var(--g100); border-radius: var(--radius); padding: 34px 30px; }
.panel-soft h3 { font-size: 17px; margin-bottom: 20px; }
.kv-row { display: flex; justify-content: space-between; gap: 16px; padding: 13px 0; border-bottom: 1px solid var(--g300); }
.kv-row:last-child { border-bottom: 0; }
.kv-row dt { font-size: 15px; color: var(--ink); margin: 0; }
.kv-row dd { margin: 0; font-size: 14px; color: var(--slate); text-align: right; }

.quote-band {
  background: var(--g100); border-left: 3px solid var(--g600);
  border-radius: var(--radius); padding: 24px 28px;
  font-size: 16px; color: var(--g800); line-height: 1.85;
}

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 16px; }
.mt-2 { margin-top: 28px; }
.mt-3 { margin-top: 44px; }
.mb-2 { margin-bottom: 28px; }
.mb-3 { margin-bottom: 44px; }

.text-center { text-align: center; }
.text-muted { color: var(--gray); }

/* 滚动出现动画 */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* 回到顶部 */
.to-top {
  position: fixed; right: 24px; bottom: 24px; z-index: 90;
  width: 44px; height: 44px; border-radius: var(--radius);
  background: var(--g800); border: 0; color: #fff;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: opacity .25s ease, visibility .25s ease;
}
.to-top.is-visible { opacity: 1; visibility: visible; }
.to-top:hover { background: var(--g500); }
.to-top svg { width: 18px; height: 18px; stroke: #fff; fill: none; stroke-width: 2; }

/* 面包屑导航在浅底时 */
.crumb--light { color: var(--gray); }
.crumb--light a { color: var(--gray); }
.crumb--light a:hover { color: var(--g500); }

/* =========================================================
   20. 图片视觉组件（摄影素材均取自 Pexels 免费商用图库）
   ========================================================= */

/* ---------- 20.1 首屏背景图 ---------- */
/* 首屏改用实景照片，取消原先的装饰圆 */
.hero::before, .hero::after { display: none; }

.hero-bg { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; object-position: 70% 50%; }
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(96deg, var(--g900) 0%, rgba(10,51,36,.96) 34%, rgba(10,51,36,.72) 62%, rgba(10,51,36,.5) 100%);
}
.hero > .wrap { position: relative; z-index: 3; }

/* 首屏上的浅色描边统计条 */
.hero-stats { border-top: 1px solid rgba(169,205,189,.3); }

/* ---------- 20.2 业务线图片卡片（核心服务） ---------- */
.svc-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }

.svc-card {
  position: relative; display: block; overflow: hidden;
  border-radius: var(--radius);
  background: var(--g900);
  min-height: 420px;
  color: #fff;
  isolation: isolate;
}
.svc-card__img { position: absolute; inset: 0; z-index: 0; }
.svc-card__img img {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.01);
  transition: transform .8s cubic-bezier(.16,.62,.24,1), filter .4s ease;
  filter: saturate(.92);
}
.svc-card__img::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(178deg,
    rgba(10,51,36,.28) 0%,
    rgba(10,51,36,.62) 42%,
    rgba(10,51,36,.9) 72%,
    rgba(10,51,36,.97) 100%);
  transition: background .35s ease;
}
.svc-card:hover .svc-card__img img { transform: scale(1.08); filter: saturate(1.02); }
.svc-card:hover .svc-card__img::after {
  background: linear-gradient(178deg,
    rgba(10,51,36,.42) 0%,
    rgba(10,51,36,.76) 40%,
    rgba(10,51,36,.94) 70%,
    rgba(10,51,36,.98) 100%);
}

/* 顶部亮绿描边，悬停生长 */
.svc-card__bar {
  position: absolute; left: 0; top: 0; z-index: 2;
  height: 3px; width: 46px; background: var(--g500);
  transition: width .45s cubic-bezier(.2,.7,.2,1);
}
.svc-card:hover .svc-card__bar { width: 100%; }

.svc-card__key {
  position: absolute; right: 18px; top: 16px; z-index: 2;
  font-size: 12px; font-weight: 600; letter-spacing: .14em;
  color: #fff; background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 2px; padding: 3px 9px;
  backdrop-filter: blur(3px);
}

.svc-card__body {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 2;
  padding: 26px 24px 22px;
}
.svc-card__body h3 {
  color: #fff; font-size: 20px; line-height: 1.4;
  margin-bottom: 8px; transition: color .25s ease;
}
.svc-card:hover .svc-card__body h3 { color: #fff; }
.svc-card__body .svc-sub {
  font-size: 13.5px; color: var(--g300); line-height: 1.7;
  margin: 0; min-height: 46px;
}

/* 悬停展开的交付项 */
.svc-card__list {
  list-style: none; margin-top: 0;
  max-height: 0; opacity: 0; overflow: hidden;
  transition: max-height .48s cubic-bezier(.2,.7,.2,1), opacity .32s ease, margin-top .4s ease;
}
.svc-card:hover .svc-card__list,
.svc-card:focus-within .svc-card__list { max-height: 190px; opacity: 1; margin-top: 14px; }
.svc-card__list li {
  position: relative; padding-left: 16px;
  font-size: 13.5px; line-height: 1.95; color: #E7F1EC;
}
.svc-card__list li::before {
  content: ""; position: absolute; left: 0; top: .8em;
  width: 8px; height: 1px; background: var(--g500);
}
.svc-card__more {
  display: inline-flex; align-items: center; gap: 8px;
  margin-top: 16px; font-size: 13px; letter-spacing: .04em;
  color: var(--g300); border-bottom: 1px solid transparent;
  padding-bottom: 2px; transition: color .25s ease, border-color .25s ease;
}
.svc-card:hover .svc-card__more { color: #fff; border-color: var(--g500); }
.svc-card__more span {
  display: inline-block; transition: transform .3s ease;
}
.svc-card:hover .svc-card__more span { transform: translateX(4px); }

/* 触屏设备：直接展开，不依赖悬停 */
@media (hover: none) {
  .svc-card__list { max-height: 190px; opacity: 1; margin-top: 14px; }
  .svc-card__body .svc-sub { min-height: 0; }
}

/* ---------- 20.3 横向图片卡（案例 / 通用） ---------- */
.media-frame { border-radius: var(--radius); overflow: hidden; background: var(--g100); }
.media-frame img { width: 100%; height: 100%; object-fit: cover; display: block; }

.media-split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 52px; align-items: center; }
.media-split--rev .media-split__media { order: 2; }
.media-split__media { position: relative; border-radius: var(--radius); overflow: hidden; }

/* 图片右下角浮出的数据角标 */
.media-badge {
  position: absolute; right: 22px; bottom: 22px; z-index: 2;
  background: rgba(246,250,248,.95); border-radius: var(--radius);
  padding: 16px 20px; min-width: 148px;
  border-left: 3px solid var(--g500);
}
.media-badge .mb-num { font-size: 27px; font-weight: 600; color: var(--g800); line-height: 1.15; }
.media-badge .mb-label { font-size: 12.5px; color: var(--slate); margin-top: 3px; }

/* ---------- 20.4 优势清单（图 + 行） ---------- */
.adv-item {
  display: grid; grid-template-columns: 58px 1fr; gap: 20px;
  padding: 22px 20px; border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background .25s ease, border-color .25s ease;
}
.adv-item + .adv-item { margin-top: 4px; }
.adv-item:hover { background: var(--g50); border-color: var(--line); }
.adv-ico {
  width: 58px; height: 58px; border-radius: var(--radius);
  background: var(--g100);
  display: flex; align-items: center; justify-content: center;
  transition: background .25s ease;
}
.adv-item:hover .adv-ico { background: var(--g800); }
.adv-ico svg { width: 24px; height: 24px; stroke: var(--g600); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; transition: stroke .25s ease; }
.adv-item:hover .adv-ico svg { stroke: #fff; }
.adv-item h3 { font-size: 17px; margin-bottom: 6px; display: flex; align-items: baseline; gap: 10px; }
.adv-item h3 .adv-no { font-size: 12.5px; font-weight: 600; color: var(--g500); letter-spacing: .08em; }
.adv-item p { font-size: 14.5px; color: var(--slate); line-height: 1.85; margin: 0; }

/* ---------- 20.5 通栏图片带 ---------- */
.media-band {
  position: relative; border-radius: var(--radius); overflow: hidden;
  min-height: 360px; display: flex; align-items: center;
}
.media-band > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.media-band::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(92deg, rgba(10,51,36,.95) 0%, rgba(10,51,36,.8) 46%, rgba(10,51,36,.42) 100%);
}
.media-band__inner { position: relative; z-index: 2; padding: 58px 56px; color: #fff; width: 100%; }
.media-band__inner h2 { color: #fff; font-size: 27px; margin-bottom: 16px; }
.media-band__inner .mb-lead { color: var(--g300); font-size: 15px; line-height: 1.9; margin: 0 0 30px; max-width: 620px; }
.media-pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; max-width: 940px; }
.media-pillar { border-top: 2px solid var(--g500); padding-top: 16px; }
.media-pillar h4 { color: #fff; font-size: 16px; margin-bottom: 8px; }
.media-pillar p { color: var(--g300); font-size: 14px; line-height: 1.8; margin: 0; }

/* ---------- 20.6 质控流程（横排视觉版） ---------- */
.flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: stretch; gap: 0; }
.flow-step {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 22px; text-align: center;
}
.flow-step .fs-no { font-size: 12px; font-weight: 600; color: var(--g500); letter-spacing: .1em; }
.flow-step h4 { font-size: 16px; margin: 8px 0 6px; }
.flow-step p { font-size: 13.5px; color: var(--slate); line-height: 1.75; margin: 0; }
.flow-step--final { background: var(--g800); border-color: var(--g800); }
.flow-step--final h4 { color: #fff; }
.flow-step--final p { color: var(--g300); }
.flow-step--final .fs-no { color: var(--g300); }
.flow-sep { display: flex; align-items: center; padding: 0 10px; }
.flow-sep span { width: 9px; height: 9px; border-right: 2px solid var(--g500); border-bottom: 2px solid var(--g500); transform: rotate(-45deg); }

/* ---------- 20.7 新闻缩略图 ---------- */
.news-item { grid-template-columns: 104px 208px 1fr; gap: 26px; }
.news-thumb {
  border-radius: var(--radius); overflow: hidden; background: var(--g100);
  aspect-ratio: 640 / 420; align-self: start;
}
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.2,.7,.2,1); }
.news-item:hover .news-thumb img { transform: scale(1.06); }

/* =========================================================
   21. 响应式（补充）
   ========================================================= */
@media (max-width: 1080px) {
  .svc-cards { grid-template-columns: repeat(2, 1fr); }
  .media-band__inner { padding: 48px 40px; }
}

@media (max-width: 900px) {
  .media-split, .media-split--rev { grid-template-columns: 1fr; gap: 34px; }
  .media-split--rev .media-split__media { order: 0; }
  .flow { grid-template-columns: 1fr; gap: 12px; }
  .flow-sep { justify-content: center; padding: 2px 0; }
  .flow-sep span { transform: rotate(45deg); }
  .media-pillars { grid-template-columns: 1fr; gap: 18px; }
  .news-item { grid-template-columns: 96px 1fr; gap: 18px; }
  .news-thumb { grid-column: 2; }
}

@media (max-width: 620px) {
  .svc-cards { grid-template-columns: 1fr; }
  .svc-card { min-height: 0; }
  .svc-card__body { position: relative; padding: 22px 20px 24px; }
  .svc-card__img { position: relative; height: 190px; }
  .svc-card__img::after { background: linear-gradient(180deg, rgba(10,51,36,.05) 0%, rgba(10,51,36,.55) 100%); }
  .svc-card { background: var(--g800); }
  .svc-card__key { top: 14px; right: 14px; }
  .svc-card__bar { display: none; }
  .media-band__inner { padding: 34px 24px; }
  .media-band__inner h2 { font-size: 21px; }
  .media-badge { right: 14px; bottom: 14px; padding: 12px 15px; min-width: 120px; }
  .media-badge .mb-num { font-size: 22px; }
  .news-item { grid-template-columns: 1fr; }
  .news-thumb { grid-column: 1; }
}

/* =========================================================
   22. 响应式（原有）
   ========================================================= */
@media (max-width: 1080px) {
  :root { --pad-sec: 76px; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 36px; }
  .news-layout { grid-template-columns: 1fr; gap: 40px; }
  .news-aside { position: static; }
  .proj-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav {
    position: absolute; left: 0; right: 0; top: 72px;
    background: #fff; border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 8px 24px 24px;
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav-menu { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-menu li { border-bottom: 1px solid var(--line); }
  .nav-menu a { display: block; padding: 15px 0; font-size: 16px; }
  .nav-menu a::after { display: none; }
  .nav-menu a[aria-current="page"] { color: var(--g500); }
  .nav-cta { margin-top: 18px; padding: 14px 22px; }

  .hero h1 { font-size: 38px; }
  .hero-inner { padding: 84px 0 76px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .hero-stats .stat:nth-child(3) { border-left: 0; padding-left: 0; border-top: 1px solid rgba(169,205,189,.28); }
  .hero-stats .stat:nth-child(4) { border-top: 1px solid rgba(169,205,189,.28); }

  .grid-3, .grid-4, .lanes { grid-template-columns: repeat(2, 1fr); }
  .split, .split--wide-left, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .svc-grid { grid-template-columns: 1fr; gap: 28px; }
  .q-grid { grid-template-columns: 1fr; gap: 0; }
  .reg-item { grid-template-columns: 1fr; gap: 8px; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .stat-strip .stat:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .stat-strip .stat:nth-child(4) { border-top: 1px solid var(--line); }
  .section-title { font-size: 28px; }
  .page-hero h1 { font-size: 30px; }
  .cta-band { padding: 44px 34px; }
  .cta-band h2 { font-size: 23px; }
}

@media (max-width: 620px) {
  :root { --pad-sec: 60px; --gap: 18px; }
  body { font-size: 15px; }
  .wrap { padding: 0 18px; }
  .hero h1 { font-size: 30px; }
  .hero-sub { font-size: 16px; }
  .hero-inner { padding: 68px 0 60px; }
  .section-title { font-size: 24px; }
  .stat-num { font-size: 36px; }
  .grid-2, .grid-3, .grid-4, .lanes, .proj-grid { grid-template-columns: 1fr; }
  .timeline-item { grid-template-columns: 1fr; gap: 8px; }
  .news-item { grid-template-columns: 1fr; gap: 10px; }
  .news-date { display: flex; align-items: baseline; gap: 8px; }
  .news-date strong { font-size: 18px; }
  .footer-main { grid-template-columns: 1fr; gap: 32px; }
  .to-top { right: 16px; bottom: 16px; }
  .cta-band { padding: 34px 24px; }
  .page-hero { padding: 54px 0 46px; }
}

/* 打印 */
@media print {
  .site-header, .to-top, .cta-band, .nav-toggle { display: none !important; }
  .reveal { opacity: 1; transform: none; }
  body { font-size: 12pt; }
}