/* ============================================================
   速成顾问（广东）有限公司 — 官网全局样式
   青绿松石主色 + 冷灰中性 / 响应式 / 无框架依赖
   主色 #00a39b · 深色底 #414246 · 正文 #333
   目录：01 变量  02 重置  03 布局  04 顶部导航  05 组件
        06 页面区块  07 响应式
   ============================================================ */

/* ---------- 01 设计变量 ---------- */
:root {
  /* 主色：青绿松石（参考 noagroup 配色体系） */
  --c-primary: #00a39b;
  --c-primary-dark: #18928d;
  --c-primary-light: #24aba5;
  --c-primary-pale: #4dbfb9;
  --c-primary-soft: #76e1dd;
  /* 中性色：冷灰体系 */
  --c-slate: #5b5b5b;
  --c-slate-light: #6e6e6e;
  --c-line: #e5e5e5;
  --c-bg: #f6f6f6;
  --c-bg-alt: #eeeeee;
  --c-white: #ffffff;
  --c-text: #333333;
  --c-text-soft: #666666;
  /* 深色底：冷灰 */
  --c-deep: #414246;

  /* 尺寸 */
  --w-max: 1200px;
  --gap: 24px;
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 12px;
  --header-h: 72px;

  /* 阴影 */
  --sh-sm: 0 1px 3px rgba(65, 66, 70, .08);
  --sh-md: 0 4px 16px rgba(65, 66, 70, .12);
  --sh-lg: 0 12px 32px rgba(65, 66, 70, .16);

  /* 动效 */
  --ease: cubic-bezier(.4, 0, .2, 1);
}

@media (max-width: 900px) {
  :root { --header-h: 60px; }
}

/* ---------- 02 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-text);
  background: var(--c-white);
  /* 衬线数字/标题字体栈保持稳重感 */
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  margin: 0 0 .5em;
  font-weight: 600;
  line-height: 1.35;
  color: var(--c-primary-dark);
  letter-spacing: .01em;
}

h1 { font-size: clamp(1.75rem, 1.2rem + 2.2vw, 2.75rem); }
h2 { font-size: clamp(1.4rem, 1.1rem + 1.2vw, 2rem); }
h3 { font-size: 1.125rem; }

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

a { color: var(--c-primary-light); text-decoration: none; }
a:hover { color: var(--c-primary); text-decoration: underline; }

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

ul, ol { margin: 0 0 1em; padding-left: 1.25em; }

hr { border: 0; border-top: 1px solid var(--c-line); margin: 32px 0; }

/* 键盘可达性：保留清晰的焦点样式 */
:focus-visible {
  outline: 2px solid var(--c-primary-light);
  outline-offset: 3px;
  border-radius: 2px;
}

/* 屏幕阅读器专用文本 */
.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: 8px; top: -60px;
  z-index: 200; padding: 10px 18px;
  background: var(--c-primary); color: #fff;
  border-radius: 0 0 var(--r-sm) var(--r-sm);
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 0; color: #fff; text-decoration: none; }

/* ---------- 03 布局 ---------- */
.container {
  width: 100%;
  max-width: var(--w-max);
  margin: 0 auto;
  padding: 0 20px;
}

.section { padding: 58px 0; }
.section--tight  { padding: 44px 0; }
.section--alt    { background: var(--c-bg); }
/* 深色区用冷灰底（--c-deep），与参考站一致，主色仅作点缀 */
.section--dark   { background: var(--c-deep); color: #e0e2e4; }
.section--dark h2, .section--dark h3 { color: #fff; }

.section-head { max-width: 760px; margin: 0 0 44px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }

.eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 12px;
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-primary-light);
  background: var(--c-bg-alt);
  border-radius: 100px;
}
.section--dark .eyebrow { background: rgba(255,255,255,.10); color: #7fd8d3; }

.section-head p { color: var(--c-text-soft); font-size: 1.0625rem; }
.section--dark .section-head p { color: #c6c9cc; }

.lead { font-size: 1.0625rem; color: var(--c-text-soft); }

/* 栅格 */
.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); }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

/* ---------- 04 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .97);
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow .25s var(--ease);
}
.site-header.is-stuck { box-shadow: var(--sh-sm); }

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: var(--header-h);
}

/* Logo */
.logo {
  display: flex; align-items: center; gap: 13px;
  flex: none;
  color: var(--c-primary-dark);
}
.logo:hover { text-decoration: none; color: var(--c-primary); }

.logo__mark {
  position: relative;
  display: flex; align-items: center; justify-content: center;
  width: 38px; height: 38px;
  font-size: .875rem; font-weight: 700; letter-spacing: .04em;
  color: #fff;
  background: linear-gradient(140deg, #117b7d 0%, #00a39b 55%, #24aba5 100%);
  border-radius: 9px;
  box-shadow: 0 2px 8px rgba(0, 163, 155, .26);
  transition: box-shadow .25s var(--ease), transform .25s var(--ease);
}
.logo:hover .logo__mark {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0, 163, 155, .36);
}

/* 文字区：主名与副标分层，主名重、副标轻，之间留出明确呼吸感 */
.logo__text {
  display: flex;
  flex-direction: column;
  gap: 6px;              /* 行间距：拉开主副标，避免视觉粘连 */
  line-height: 1;
  white-space: nowrap;   /* 防止被压缩导致文字叠行 */
}
.logo__name {
  font-size: 1.1875rem;
  font-weight: 700;
  letter-spacing: .08em;
  line-height: 1;
  color: var(--c-primary-dark);
}
/* 副标：小字号 + 大字距 + 浅色，退居辅助信息层级 */
.logo__slogan {
  font-size: .625rem;
  font-weight: 400;
  color: var(--c-slate-light);
  letter-spacing: .22em;
  line-height: 1;
  padding-left: .1em;
}

/* 主导航 */
.nav__list {
  display: flex; align-items: center;
  gap: 2px;
  padding: 0; margin: 0;
  list-style: none;
}

/* 导航项：底部下划线动效 + 悬停微抬 */
.nav__link {
  position: relative;
  display: block;
  padding: 12px 15px 11px;
  font-size: .9375rem;
  color: var(--c-text-soft);
  letter-spacing: .02em;
  transition: color .22s var(--ease);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 15px; right: 15px; bottom: 4px;
  height: 2px;
  background: var(--c-primary);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .28s var(--ease);
}
.nav__link:hover {
  color: var(--c-primary);
  text-decoration: none;
}
.nav__link:hover::after { transform: scaleX(1); }

/* 当前页：主色 + 常驻下划线 + 加粗 */
.nav__link.is-active {
  color: var(--c-primary);
  font-weight: 600;
}
.nav__link.is-active::after { transform: scaleX(1); }

/* 咨询按钮：主色渐变 + 悬浮微动 */
.nav__cta { margin-left: 14px; }
.nav__cta .btn {
  padding: 9px 22px;
  font-size: .875rem;
  letter-spacing: .04em;
  background: linear-gradient(135deg, #117b7d 0%, #00a39b 100%);
  box-shadow: 0 2px 8px rgba(0, 163, 155, .24);
}
.nav__cta .btn:hover {
  background: linear-gradient(135deg, #00a39b 0%, #24aba5 100%);
  box-shadow: 0 4px 14px rgba(0, 163, 155, .34);
}

/* 汉堡按钮：桌面隐藏 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px; height: 42px;
  padding: 0 10px;
  background: transparent;
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--c-primary);
  border-radius: 2px;
  transition: transform .25s var(--ease), opacity .2s var(--ease);
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 05 组件 ---------- */

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  font-size: .9375rem;
  font-weight: 600;
  line-height: 1.2;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: background-color .2s var(--ease), border-color .2s var(--ease),
              color .2s var(--ease), transform .2s var(--ease);
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }

.btn--primary { background: var(--c-primary); color: #fff; }
.btn--primary:hover { background: var(--c-primary-light); color: #fff; }

.btn--ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.55); }
.btn--ghost:hover { background: rgba(255,255,255,.12); color: #fff; border-color: #fff; }

.btn--outline { background: transparent; color: var(--c-primary); border-color: var(--c-primary); }
.btn--outline:hover { background: var(--c-primary); color: #fff; }

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }

/* 卡片 */
.card {
  display: flex;
  flex-direction: column;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: box-shadow .25s var(--ease), transform .25s var(--ease), border-color .25s var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--sh-md);
  border-color: #c9e6e4;
}

.card__media { position: relative; aspect-ratio: 16 / 10; background: var(--c-bg-alt); overflow: hidden; }
.card__media img { width: 100%; height: 100%; object-fit: cover; }

.card__body { padding: 26px 24px 28px; flex: 1; }
.card__body h3 { margin-bottom: 10px; }
.card__body p  { color: var(--c-text-soft); font-size: .9375rem; margin-bottom: 0; }

.card__tag {
  display: inline-block;
  margin-bottom: 12px;
  padding: 3px 10px;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--c-primary-light);
  background: var(--c-bg-alt);
  border-radius: var(--r-sm);
}

.card__more {
  display: inline-block;
  margin-top: 16px;
  font-size: .875rem;
  font-weight: 600;
  color: var(--c-primary-light);
}
a.card__more:hover { color: var(--c-primary); text-decoration: none; }
a.card__more::after { content: " →"; }

/* 特性条目（无图，纯文字） */
.feature {
  padding: 22px 20px;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-primary-light);
  border-radius: var(--r-sm);
}
.feature h3 { font-size: 1.0625rem; margin-bottom: 6px; }
.feature p  { font-size: .9375rem; color: var(--c-text-soft); margin: 0; }

.feature__num {
  display: block;
  margin-bottom: 8px;
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--c-slate-light);
}

/* 深色底上的特性卡片（承诺条款等） */
.feature--dark {
  background: rgba(255, 255, 255, .06);
  border-color: rgba(255, 255, 255, .14);
  border-left-color: var(--c-primary-pale);
}
.feature--dark h3 { color: #fff; }
.feature--dark p  { color: #c6c9cc; }

/* 编号列表（流程 / 优势） */
.steps { list-style: none; padding: 0; margin: 0; counter-reset: step; }
.steps > li {
  position: relative;
  padding: 0 0 28px 60px;
  counter-increment: step;
}
.steps > li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute; left: 0; top: 0;
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  font-size: .875rem; font-weight: 700;
  color: #fff; background: var(--c-primary);
  border-radius: 50%;
}
.steps > li::after {
  content: "";
  position: absolute; left: 20px; top: 46px; bottom: 8px;
  width: 1px; background: var(--c-line);
}
.steps > li:last-child { padding-bottom: 0; }
.steps > li:last-child::after { display: none; }
.steps h3 { font-size: 1.0625rem; margin-bottom: 6px; }
.steps p  { margin: 0; color: var(--c-text-soft); font-size: .9375rem; }

/* 勾选列表 */
.checklist { list-style: none; padding: 0; margin: 0 0 8px; }
.checklist li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 10px;
  color: var(--c-text-soft);
  font-size: .9375rem;
}
.checklist li::before {
  content: "";
  position: absolute; left: 0; top: .62em;
  width: 12px; height: 7px;
  border-left: 2px solid var(--c-primary-light);
  border-bottom: 2px solid var(--c-primary-light);
  transform: rotate(-45deg);
}
.checklist--light li { color: #c6c9cc; }
.checklist--light li::before { border-color: #4dbfb9; }

/* 数据指标 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); text-align: center; }
.stat__value {
  display: block;
  font-size: clamp(1.75rem, 1.3rem + 1.6vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
  letter-spacing: -.01em;
}
.stat__label { display: block; margin-top: 6px; font-size: .875rem; color: #b0b3b6; }

/* 图片占位容器 */
.media {
  position: relative;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--c-bg-alt);
  border: 1px solid var(--c-line);
}
.media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.media--4x3 { aspect-ratio: 4 / 3; }
.media--16x9 { aspect-ratio: 16 / 9; }

/* 高德地图容器：交互式地图挂载点，静态图作为降级 */
.map-box {
  position: absolute;
  inset: 0;
  background: var(--c-bg-alt);
}
.map-box > picture,
.map-box > img {
  display: block;
  width: 100%;
  height: 100%;
}
.map-box > picture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
/* 高德容器注入后（AMap 会给容器加 amap 相关类名）移除降级图占位 */
.map-box.amap-container { background: #fff; }
.map-box.amap-container > picture { display: none; }

/* 首页面包屑条：位于 Hero 上方，纯色底 */
.breadcrumb-nav {
  background: var(--c-primary-dark);
  padding: 10px 0;
}
.breadcrumb-nav .breadcrumb { margin: 0; }
.breadcrumb-nav .breadcrumb li { color: rgba(255, 255, 255, .68); }

/* 区块尾部补充说明/交叉链接 */
.section-foot {
  margin-top: 32px;
  padding-top: 22px;
  border-top: 1px solid var(--c-line);
  font-size: .9375rem;
  color: var(--c-text-soft);
  text-align: center;
}
.section-alt .section-foot { border-top-color: var(--c-line); }
.section-foot p { margin: 0; }
.section-foot a { font-weight: 500; }

/* 速成文化：使命 / 愿景卡片 */
.culture-card {
  padding: 30px 28px;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-primary);
  border-radius: var(--r-md);
}
.culture-card__label {
  display: inline-block;
  margin-bottom: 12px;
  padding: 3px 12px;
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .1em;
  color: #fff;
  background: var(--c-primary);
  border-radius: 100px;
}
.culture-card h3 { font-size: 1.1875rem; margin-bottom: 12px; }
.culture-card p  { margin: 0; font-size: .9375rem; color: var(--c-text-soft); }

/* 核心价值观条目 */
.value-item {
  padding: 24px 20px;
  text-align: center;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
}
.value-item__num {
  display: inline-block;
  margin-bottom: 10px;
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--c-primary-light);
}
.value-item h3 { font-size: 1.0625rem; margin-bottom: 8px; }
.value-item p  { margin: 0; font-size: .875rem; color: var(--c-text-soft); }

/* 经营理念条目 */
.biz-item {
  padding: 26px 24px;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-primary-pale);
  border-radius: var(--r-sm);
}
.biz-item h3 { font-size: 1.125rem; margin-bottom: 10px; }
.biz-item p  { margin: 0; font-size: .9375rem; color: var(--c-text-soft); }

/* 团队角色卡（关于页团队配置） */
.role-card {
  padding: 26px 22px;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-primary);
  border-radius: var(--r-md);
}
.role-card__num {
  display: inline-block;
  margin-bottom: 10px;
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--c-primary-light);
}
.role-card h3 { font-size: 1.0625rem; margin-bottom: 8px; }
.role-card p  { margin: 0; font-size: .875rem; color: var(--c-text-soft); }

/* 浅色底上的数据指标（用于白底区块内） */
.stats--light .stat__value { color: var(--c-primary-dark); }
.stats--light .stat__label { color: var(--c-slate); }

/* 客户案例：结构化字段列表（背景/范围/周期/成果） */
.case-list {
  margin: 16px 0 0;
  padding: 0;
  font-size: .875rem;
}
.case-list dt {
  display: inline-block;
  margin-bottom: 3px;
  padding: 2px 9px;
  font-size: .75rem;
  font-weight: 600;
  color: var(--c-primary);
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: 100px;
}
.case-list dd {
  margin: 0 0 12px;
  color: var(--c-text-soft);
  line-height: 1.7;
}
.case-list dd:last-child { margin-bottom: 0; }

/* 服务类别小标签（首页核心服务卡片内） */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}
.chip {
  padding: 4px 10px;
  font-size: .75rem;
  line-height: 1.5;
  color: var(--c-text-soft);
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: 100px;
  white-space: nowrap;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.chip:hover {
  color: var(--c-primary);
  border-color: var(--c-primary-pale);
  background: var(--c-white);
}

/* 大类内的二级小标题（如「高频客户验厂对接」） */
.sub-title {
  margin: 34px 0 8px;
  padding-top: 26px;
  font-size: 1.1875rem;
  border-top: 1px solid var(--c-line);
}

/* 小节描述文字 */
.group-desc {
  max-width: 720px;
  margin-bottom: 20px;
  font-size: .9375rem;
  color: var(--c-text-soft);
}

/* 「此外还有…」补充说明，明确展示内容仅为部分 */
.group-more {
  margin: 18px 0 0;
  padding: 11px 16px;
  font-size: .875rem;
  color: var(--c-text-soft);
  background: var(--c-bg);
  border-left: 2px solid var(--c-primary-pale);
  border-radius: var(--r-sm);
}

/* 协同服务矩阵卡片：图文左右结构 */
/* 协同服务矩阵卡：图片占满整卡宽度的大图布局，更大气 */
.matrix-card {
  flex-direction: column;
  align-items: stretch;
}
.matrix-card .card__media {
  flex: none;
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
}
.matrix-card .card__body { flex: 1; }

/* 大图下正文留白收紧，信息更饱满 */
.matrix-card .card__body { padding: 22px 24px 24px; }
.matrix-card .card__body h3 { margin-bottom: 8px; }
.matrix-card .card__body p { font-size: .9375rem; }

@media (max-width: 720px) {
  .matrix-card .card__media { aspect-ratio: 16 / 10; }
}

/* 卡片内的二维码（投诉渠道） */
.qr-inline {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px dashed var(--c-line);
  text-align: center;
}
.qr-inline img {
  width: 128px;
  height: auto;
  padding: 6px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
}
.qr-inline span {
  display: block;
  margin-top: 8px;
  font-size: .8125rem;
  color: var(--c-slate);
}

/* 企业微信二维码区块 */
.qr-block {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-top: 28px;
  padding: 22px;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
}
.qr-block__code {
  flex: none;
  width: 132px;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
}
.qr-block__code img { width: 100%; height: auto; display: block; }
.qr-block__text h3 { font-size: 1.0625rem; margin-bottom: 8px; }
.qr-block__text p  { margin: 0; font-size: .9375rem; color: var(--c-text-soft); }
.qr-block__note {
  margin-top: 10px !important;
  padding: 4px 12px;
  display: inline-block;
  font-size: .8125rem !important;
  font-weight: 600;
  color: var(--c-primary) !important;
  background: var(--c-white);
  border: 1px solid var(--c-primary-pale);
  border-radius: 100px;
}

@media (max-width: 560px) {
  .qr-block { flex-direction: column; text-align: center; }
  .qr-block__code { width: 150px; }
}

/* 长期战略合作要素卡片 */
.strategy-card {
  padding: 26px 24px;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
}
.strategy-card__label {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 14px;
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .08em;
  color: #fff;
  background: linear-gradient(135deg, #117b7d 0%, #00a39b 100%);
  border-radius: 100px;
}
.strategy-card h3 { font-size: 1.125rem; margin-bottom: 10px; }
.strategy-card p  { margin: 0; font-size: .9375rem; color: var(--c-text-soft); }

/* 服务大类分组（服务页六大核心服务） */
.service-group { margin-bottom: 56px; }
.service-group:last-child { margin-bottom: 0; }

/* 类目标题：编号 + 标题 + 描述 */
/* 板块标题区：左侧编号+文案，右侧场景配图 */
.service-group__head {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 26px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--c-line);
}
.service-group__text { flex: 1; min-width: 0; }
.service-group__figure {
  flex: none;
  width: 260px;
  margin-top: -6px;
}
.service-group__figure .media {
  border-radius: var(--r-md);
}
.service-group__figure .media__badge {
  left: 10px; bottom: 10px;
  font-size: .6875rem;
  padding: 4px 10px;
}

/* 中等屏幕：配图缩小 */
@media (max-width: 1080px) {
  .service-group__figure { width: 200px; }
}
@media (max-width: 720px) {
  .service-group__head { flex-wrap: wrap; }
  .service-group__figure { width: 100%; margin-top: 4px; }
}
.service-group__num {
  flex: none;
  display: flex; align-items: center; justify-content: center;
  width: 46px; height: 46px;
  font-size: 1rem; font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, #117b7d 0%, #00a39b 100%);
  border-radius: var(--r-md);
}
.service-group__head h2 { margin-bottom: 6px; font-size: 1.375rem; }
.service-group__head .lead { margin: 0; font-size: 1rem; }

@media (max-width: 560px) {
  .service-group { margin-bottom: 40px; }
  .service-group__head { gap: 14px; }
  .service-group__num { width: 38px; height: 38px; font-size: .875rem; }
  .service-group__head h2 { font-size: 1.1875rem; }
}

/* 锚点导航条（服务页快速跳转） */
.anchor-nav {
  position: sticky;
  top: var(--header-h);
  z-index: 90;
  background: rgba(255, 255, 255, .97);
  border-bottom: 1px solid var(--c-line);
}
.anchor-nav ul {
  display: flex;
  gap: 2px;
  padding: 0;
  margin: 0;
  overflow-x: auto;
  list-style: none;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.anchor-nav ul::-webkit-scrollbar { display: none; }
.anchor-nav a {
  display: block;
  padding: 13px 14px;
  font-size: .875rem;
  color: var(--c-text-soft);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.anchor-nav a:hover {
  color: var(--c-primary);
  border-bottom-color: var(--c-primary);
  text-decoration: none;
}
/* 锚点跳转时留出吸顶导航的高度，避免标题被遮挡 */
.card[id] { scroll-margin-top: calc(var(--header-h) + 56px); }

/* 提示条 */
.notice {
  padding: 16px 20px;
  font-size: .9375rem;
  color: var(--c-text-soft);
  background: var(--c-bg);
  border-left: 3px solid var(--c-slate-light);
  border-radius: var(--r-sm);
}

/* 表单 */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { display: flex; flex-direction: column; }
.field--full { grid-column: 1 / -1; }
.field label {
  margin-bottom: 7px;
  font-size: .875rem;
  font-weight: 600;
  color: var(--c-primary-dark);
}
.field label .req { color: #c0392b; margin-left: 2px; }

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 11px 14px;
  font-family: inherit;
  font-size: .9375rem;
  color: var(--c-text);
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field textarea { min-height: 132px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: var(--c-slate-light); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--c-primary-light);
  box-shadow: 0 0 0 3px rgba(0, 163, 155, .16);
}

.form-tip { margin-top: 14px; font-size: .8125rem; color: var(--c-slate); }

/* ---------- 06 页面区块 ---------- */

/* 页头 / Banner：青绿主色渐变 */
.page-header {
  padding: 68px 0 62px;
  background: linear-gradient(135deg, #117b7d 0%, #00a39b 58%, #24aba5 100%);
  color: #e0e2e4;
}
.page-header h1 { color: #fff; margin-bottom: 14px; }
.page-header p  { max-width: 720px; margin: 0; color: #c2c5c8; font-size: 1.0625rem; }

.breadcrumb {
  display: flex; flex-wrap: wrap; gap: 8px;
  padding: 0; margin: 0 0 20px;
  list-style: none;
  font-size: .8125rem;
  color: #96999c;
}
.breadcrumb li + li::before { content: "/"; margin-right: 8px; opacity: .55; }
.breadcrumb a { color: #c2c5c8; }
.breadcrumb a:hover { color: #fff; }

/* 首页 Hero：深青绿压暗图，右侧透出主色 */
/* Hero：背景图自带渐变与质感，此处只做左侧压暗，保证标题可读 */
.hero {
  position: relative;
  padding: 132px 0 120px;
  background: #0b3d40 center/cover no-repeat;
  color: #e0e2e4;
  overflow: hidden;
}
/* picture 元素本身不参与布局，需铺满后由内层 img 绝对定位 */
.hero picture {
  position: absolute; inset: 0;
  z-index: 0;
  display: block;
}
.hero__bg {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: 0;
  opacity: 1;
}
/* 左侧遮罩：仅压暗文字区，右侧画面完整透出 */
.hero::after {
  content: "";
  position: absolute; inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(96deg,
    rgba(6,42,44,.90) 0%,
    rgba(7,48,50,.88) 24%,
    rgba(8,54,56,.80) 40%,
    rgba(9,62,64,.60) 54%,
    rgba(11,74,76,.34) 70%,
    rgba(13,84,86,.10) 88%,
    rgba(14,92,94,.03) 100%);
}
.hero .container { position: relative; z-index: 2; }
.hero__inner { max-width: 720px; }
.hero h1 { color: #fff; }
.hero h1 span { color: #a8ede9; }
.hero__sub { font-size: 1.125rem; color: #eef4f4; max-width: 600px; text-shadow: 0 1px 3px rgba(0,0,0,.45); }
.hero__meta {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-top: 26px;
}
.hero__meta span {
  padding: 6px 14px;
  font-size: .8125rem;
  color: #f0f7f6;
  background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.26);
  border-radius: 100px;
}

/* 服务图标（纯 CSS，不用图片，省请求） */
.icon {
  display: flex; align-items: center; justify-content: center;
  width: 52px; height: 52px;
  margin-bottom: 18px;
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: #fff;
  background: linear-gradient(135deg, #117b7d 0%, #00a39b 100%);
  border-radius: var(--r-md);
}

/* 行业标签墙 */
.tags { display: flex; flex-wrap: wrap; gap: 12px; }
.tag {
  padding: 10px 20px;
  font-size: .9375rem;
  color: var(--c-primary-dark);
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: 100px;
  transition: all .2s var(--ease);
}
.tag:hover {
  color: #fff; background: var(--c-primary); border-color: var(--c-primary);
  text-decoration: none;
}

/* 时间轴 */
.timeline {
  position: relative;
  padding-left: 28px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 34px;
}
.timeline::before {
  content: "";
  position: absolute; left: 5px; top: 8px; bottom: 8px;
  width: 2px; background: var(--c-line);
}
.timeline__item { position: relative; padding-bottom: 0; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__item::before {
  content: "";
  position: absolute; left: -28px; top: 7px;
  width: 12px; height: 12px;
  background: var(--c-white);
  border: 3px solid var(--c-primary-light);
  border-radius: 50%;
}
.timeline__year {
  display: inline-block; margin-bottom: 4px;
  font-size: .875rem; font-weight: 700; letter-spacing: .06em;
  color: var(--c-primary-light);
}
.timeline__item h3 { font-size: 1.0625rem; margin-bottom: 6px; }
.timeline__item p  { margin: 0; font-size: .9375rem; color: var(--c-text-soft); }

/* 窄屏回到单列 */
@media (max-width: 860px) {
  .timeline { grid-template-columns: 1fr; gap: 18px; }
}

/* 联系信息表 */
.info-list { list-style: none; padding: 0; margin: 0; }
.info-list li {
  display: flex; gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--c-line);
}
.info-list li:last-child { border-bottom: 0; }
.info-list__k {
  flex: 0 0 76px;
  font-size: .875rem;
  color: var(--c-slate);
}
.info-list__v { font-size: .9375rem; color: var(--c-text); }
.info-list__v a { word-break: break-all; }

/* CTA 条 */
.cta {
  padding: 52px 0;
  background: linear-gradient(100deg, #00a39b 0%, #117b7d 100%);
  color: #e0e2e4;
}
.cta__inner {
  display: flex; flex-wrap: wrap;
  align-items: center; justify-content: space-between;
  gap: 24px;
}
.cta h2 { color: #fff; margin: 0 0 6px; font-size: clamp(1.3rem, 1.1rem + .8vw, 1.75rem); }
.cta p  { margin: 0; color: #c6c9cc; }

/* 页脚 */
.site-footer {
  padding: 56px 0 0;
  background: var(--c-deep);
  color: #b0b3b6;
  font-size: .875rem;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.10);
}
.site-footer h4 {
  margin-bottom: 16px;
  font-size: .9375rem;
  font-weight: 600;
  color: #fff;
}
.site-footer a { color: #b0b3b6; }
.site-footer a:hover { color: #fff; text-decoration: none; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 9px; }

.footer-brand__logo {
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 14px;
  font-size: 1.125rem; font-weight: 600; color: #fff;
}
.footer-brand__mark {
  display: flex; align-items: center; justify-content: center;
  width: 34px; height: 34px;
  font-size: .875rem; font-weight: 700;
  color: #fff;
  background: var(--c-primary-light);
  border-radius: var(--r-sm);
}

.footer-bottom {
  display: flex; flex-wrap: wrap;
  align-items: center; justify-content: space-between;
  gap: 12px;
  padding: 20px 0 26px;
  font-size: .8125rem;
  color: #8b8e91;
}
/* ICP 备案位：上线前替换为真实备案号并补 href */
.footer-icp { display: inline-flex; flex-wrap: wrap; gap: 6px 16px; }
.footer-icp a { color: #8b8e91; }
.footer-icp a:hover { color: #fff; }

/* 返回顶部 */
.to-top {
  position: fixed; right: 20px; bottom: 24px;
  z-index: 90;
  display: flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  color: #fff; background: var(--c-primary);
  border: 0; border-radius: 50%;
  box-shadow: var(--sh-md);
  cursor: pointer;
  opacity: 0; visibility: hidden;
  transform: translateY(10px);
  transition: opacity .25s var(--ease), transform .25s var(--ease), background-color .2s var(--ease);
}
.to-top.is-show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--c-primary-light); }

/* 回到顶部提示：不支持平滑滚动时不影响阅读 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}

/* ---------- 07 上线前待替换内容标记 ---------- */
/*
  待填充内容统一用此样式标注，上线前全局搜索 class="todo" 即可逐一定位，
  避免占位文字误随网站上线。

  ⚠️ 替换成真实内容后，务必同时去掉外层的 <span class="todo">，
     否则会带上橙色的【待填】前缀和虚线框。
     setup-site.js 会自动完成这一步。
*/
/* .todo.filled —— 已填入真实内容，仅保留可点击态 */
.todo.filled {
  padding: 0;
  color: inherit;
  background: none;
  border-bottom: 0;
  border-radius: 0;
  font-size: inherit;
}
.todo.filled::before { content: none; }

.todo {
  padding: 1px 5px;
  color: #b35309;
  background: #fef3e2;
  border-bottom: 1px dashed #e8a33d;
  border-radius: 2px;
  font-size: .9375em;
}
.todo::before { content: "【待填】"; font-size: .8125em; opacity: .8; }

/* ---------- 08 响应式 ---------- */

/* 大桌面以下：栅格降列 */
@media (max-width: 1080px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}

/* 中等桌面：导航项收紧间距，避免与 Logo 挤压（导航已增至 7 项） */
@media (max-width: 1160px) and (min-width: 901px) {
  .logo__name { font-size: 1.125rem; }
  .logo__slogan { font-size: .5625rem; letter-spacing: .18em; }
  .nav__link { padding: 12px 9px 11px; font-size: .875rem; }
  .nav__link::after { left: 9px; right: 9px; }
  .nav__cta { margin-left: 6px; }
  .nav__cta .btn { padding: 9px 15px; }
}

/* 更窄的桌面：Logo 收窄，副标隐藏，只留主名 */
@media (max-width: 1000px) and (min-width: 901px) {
  .logo__slogan { display: none; }
  .nav__link { padding: 12px 8px 11px; font-size: .8125rem; }
  .nav__link::after { left: 8px; right: 8px; }
}

@media (max-width: 900px) {
  :root { --gap: 18px; }
  .section { padding: 52px 0; }
  .section--tight { padding: 40px 0; }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 28px 16px; }
  .hero { padding: 84px 0 76px; }
  .page-header { padding: 48px 0 44px; }
  .cta__inner { flex-direction: column; align-items: flex-start; }

  /* 汉堡按钮出现，导航改为可折叠面板 */
  .nav-toggle { display: flex; }

  .nav {
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--c-white);
    border-bottom: 1px solid var(--c-line);
    box-shadow: var(--sh-md);
    /* 折叠动画：用 max-height 过渡，无需固定高度 */
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    transition: max-height .3s var(--ease), visibility .3s;
  }
  .nav.is-open { max-height: 520px; visibility: visible; }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px 16px 16px;
  }
  .nav__list li { border-bottom: 1px solid var(--c-bg-alt); }
  .nav__list li:last-child { border-bottom: 0; }
  .nav__link { padding: 14px 4px 14px 14px; font-size: 1rem; }
  /* 移动端改为左侧竖条指示，替代桌面端底部下划线 */
  .nav__link::after {
    left: 0; right: auto; bottom: 10px; top: 10px;
    width: 2px; height: auto;
    transform: scaleY(0);
    transform-origin: center;
  }
  .nav__link:hover::after,
  .nav__link.is-active::after { transform: scaleY(1); }
  .nav__cta { margin: 12px 0 0; }
  .nav__cta .btn { width: 100%; padding: 12px; }
}

/* 平板竖屏 / 大手机 */
@media (max-width: 720px) {
  .form-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
}

/* 手机 */
@media (max-width: 560px) {
  body { font-size: 15px; }
  .container { padding: 0 16px; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .section { padding: 44px 0; }
  .hero { padding: 60px 0 58px; }
  .hero__meta { gap: 8px; }
  .btn-row { gap: 10px; }
  .btn { width: 100%; }
  .steps > li { padding-left: 50px; }
  .steps > li::before { width: 34px; height: 34px; font-size: .8125rem; }
  .steps > li::after { left: 17px; top: 40px; }
  .info-list li { flex-direction: column; gap: 4px; }
  .info-list__k { flex: none; }
  .to-top { right: 14px; bottom: 16px; }
}

/* 极窄屏（≤480px）：iPhone SE 等小屏设备进一步收紧 */
@media (max-width: 480px) {
  .container { padding: 0 14px; }
  .section { padding: 38px 0; }
  .hero { padding: 48px 0 46px; }
  .hero h1 { font-size: 1.625rem; }
  .hero__sub { font-size: 1rem; }

  /* 服务类别标签：允许换行显示，避免横向溢出 */
  .chip { padding: 3px 8px; font-size: .6875rem; }

  /* 团队角色卡与特征卡：减小内边距 */
  .role-card, .feature, .biz-item, .culture-card, .strategy-card { padding: 20px 18px; }

  /* 案例字段标签独占一行 */
  .case-list dt { display: table; }

  /* 统计数字缩小，避免换行 */
  .stat__value { font-size: 1.5rem; }
  .stats { gap: 20px 10px; }

  /* 协同矩阵图文转纵向 */
  .matrix-card { flex-direction: column; }
  .matrix-card .card__media { flex: none; aspect-ratio: 16 / 10; }

  /* 步骤列表缩进收紧 */
  .steps > li { padding-left: 44px; }
  .steps > li::before { width: 30px; height: 30px; font-size: .75rem; }
  .steps > li::after { left: 15px; top: 36px; }

  /* 锚点导航可横向滚动 */
  .anchor-nav a { padding: 11px 11px; font-size: .8125rem; }
}

/* 移动端 Hero：画面被裁得只剩中段，横向遮罩失去意义，改为整体压暗 */
@media (max-width: 720px) {
  .hero { padding: 76px 0 68px; }
  .hero::after {
    background: linear-gradient(180deg,
      rgba(6,42,44,.66) 0%,
      rgba(7,48,50,.52) 45%,
      rgba(8,54,56,.62) 100%);
  }
}

/* 关于页通栏配图：板块内的宽幅场景图 */
.about-wide-figure {
  margin-bottom: var(--gap);
  border-radius: var(--r-md);
}

/* 配图角标：照片配图没有内置文字，用半透明标签做视觉标识 */
.media__badge {
  position: absolute;
  left: 14px; bottom: 14px;
  z-index: 2;
  padding: 5px 12px;
  font-size: .8125rem;
  font-weight: 500;
  letter-spacing: .04em;
  color: #fff;
  background: rgba(6, 47, 49, .55);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 100px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  pointer-events: none;
}

/* 打印：去掉交互元素 */
@media print {
  .site-header, .site-footer, .to-top, .cta, .hero__bg { display: none !important; }
  .section { padding: 16px 0; }
  body { color: #000; }
}