/* ==========================================================
   福州好小蚁科技 · fzantcom 设计系统 v3
   品牌基因色（取自 LOGO）：草绿 #609030 · 金橙 #F0A030 · 高光绿 #88D020
   调性：深林墨绿底 × 翡翠科技绿 × 琥珀金点缀 —— 高端 / 大气 / 有生命力
   ----------------------------------------------------------
   1. 基础重置      5. 组件（卡片/网格/流程/时间轴）
   2. 设计变量      6. 页脚
   3. 顶部与导航    7. 响应式
   4. 版块通用
   ========================================================== */

/* ===== 1. 基础重置 ===== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", "Source Han Sans CN", "Noto Sans CJK SC", sans-serif;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5, h6 { margin: 0 0 .6em; font-weight: 700; line-height: 1.35; color: var(--ink); }
p { margin: 0 0 1em; }
a { color: inherit; text-decoration: none; transition: color .2s, opacity .2s; }
img { max-width: 100%; vertical-align: middle; border: 0; }
ul, ol { margin: 0 0 1em; padding-left: 1.3em; }
li { margin-bottom: .35em; }
table { width: 100%; border-collapse: collapse; margin: 1em 0; font-size: 14px; }
th, td { border: 1px solid var(--line); padding: 10px 14px; text-align: left; vertical-align: top; }
th { background: var(--bg-soft); font-weight: 600; color: var(--ink); }
input, textarea, select, button { font: inherit; color: inherit; }
strong, b { font-weight: 700; color: var(--ink); }
hr { border: 0; border-top: 1px solid var(--line); margin: 2.2em 0; }

/* ===== 2. 设计变量 ===== */
:root {
  --ink:        #0B1F10;   /* 深林墨绿：标题与深色底 */
  --primary:    #3E9B2F;   /* 品牌翡翠绿（提亮自 LOGO 草绿） */
  --primary-d:  #2A6E1E;   /* 深绿 */
  --accent:     #F5A623;   /* 琥珀金（提亮自 LOGO 金橙） */
  --neon:       #A8E063;   /* 高光绿（取自 LOGO 高光 #88D020） */
  --grad:       linear-gradient(120deg, #2A6E1E 0%, #3E9B2F 52%, #7CBF3F 100%);
  --grad-amber: linear-gradient(120deg, #D98A0F 0%, #F5A623 60%, #FFC55C 100%);
  --grad-soft:  linear-gradient(120deg, rgba(62,155,47,.09), rgba(168,224,99,.14));
  --bg:         #FFFFFF;
  --bg-soft:    #F4F8F1;
  --bg-deep:    #071508;
  --line:       #E2EADF;
  --text:       #26332A;
  --muted:      #647466;
  --shadow:     0 8px 28px rgba(11, 31, 16, .08);
  --shadow-lg:  0 18px 48px rgba(11, 31, 16, .13);
  --radius:     14px;
  --wrap:       1680px;
  --nav-h:      68px;
}

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 40px; }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 42px; padding: 0 22px; border-radius: 8px;
  font-size: 14px; font-weight: 600; letter-spacing: .02em;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: transform .18s, box-shadow .18s, background .2s, color .2s, border-color .2s;
}
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 8px 20px rgba(62,155,47,.30); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(62,155,47,.40); color: #fff; }
.btn-amber { background: var(--grad-amber); color: #fff; box-shadow: 0 8px 20px rgba(245,166,35,.30); }
.btn-amber:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(245,166,35,.40); color: #fff; }
.btn-ghost { border-color: rgba(255,255,255,.4); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.12); border-color: #fff; color: #fff; }
.btn-line { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-line:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-lg { height: 50px; padding: 0 30px; font-size: 15px; }

/* 标签 */
.tag {
  display: inline-block; padding: 3px 11px; border-radius: 999px;
  font-size: 12px; font-weight: 600; letter-spacing: .04em;
  background: var(--grad-soft); color: var(--primary-d); border: 1px solid rgba(62,155,47,.22);
}
.tag-solid { background: var(--grad); color: #fff; border-color: transparent; }
.tag-amber { background: rgba(245,166,35,.12); color: #C77F0A; border: 1px solid rgba(245,166,35,.30); }
.tag-line  { background: transparent; border-color: var(--line); color: var(--muted); }

/* ===== 3. 顶部 + 导航 ===== */
.topbar { background: var(--bg-deep); color: rgba(255,255,255,.62); font-size: 12.5px; height: 38px; line-height: 38px; }
.topbar .wrap { display: flex; justify-content: space-between; gap: 20px; }
.topbar .left span + span { margin-left: 22px; padding-left: 22px; border-left: 1px solid rgba(255,255,255,.16); }
.topbar .right a { margin-left: 20px; color: rgba(255,255,255,.62); }
.topbar .right a:hover { color: var(--neon); }

.header {
  position: sticky; top: 0; z-index: 90; background: rgba(255,255,255,.94);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.header .wrap { display: flex; align-items: center; height: var(--nav-h); gap: 24px; }
.logo { display: flex; align-items: center; gap: 11px; flex: none; }
.logo img { height: 40px; width: auto; }
.logo .brand-text b { display: block; font-size: 19px; letter-spacing: .02em; color: var(--ink); line-height: 1.2; }
.logo .brand-text span { display: block; font-size: 11.5px; color: var(--muted); letter-spacing: .14em; }

.header nav { flex: 1; }
.nav { display: flex; list-style: none; margin: 0; padding: 0; }
.nav > li { position: relative; margin: 0; }
.nav > li > a {
  display: block; padding: 0 15px; height: var(--nav-h); line-height: var(--nav-h);
  font-size: 15px; font-weight: 500; color: var(--ink); position: relative;
}
.nav > li > a::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 0; height: 2px;
  background: var(--grad); transform: scaleX(0); transition: transform .25s; transform-origin: left;
}
.nav > li:hover > a, .nav > li.active > a { color: var(--primary); }
.nav > li:hover > a::after, .nav > li.active > a::after { transform: scaleX(1); }
.nav .sub {
  position: absolute; left: 50%; top: 100%; transform: translateX(-50%) translateY(8px);
  min-width: 190px; padding: 8px; background: #fff; border: 1px solid var(--line);
  border-radius: 12px; box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden; transition: .22s; z-index: 99;
}
.nav > li:hover .sub { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.nav .sub a { display: block; padding: 9px 14px; border-radius: 8px; font-size: 14px; color: var(--text); }
.nav .sub a:hover { background: var(--bg-soft); color: var(--primary); }

.header .cta { display: flex; align-items: center; gap: 14px; flex: none; }
.header .cta .tel { font-size: 17px; font-weight: 700; color: var(--primary); font-variant-numeric: tabular-nums; }
.menu-toggle { display: none; font-size: 24px; cursor: pointer; color: var(--ink); }

/* ===== 4. 版块通用 ===== */
.section { padding: 84px 0; }
.section-soft { background: var(--bg-soft); }
.section-deep { background: var(--ink); color: rgba(255,255,255,.72); }
.section-deep h2, .section-deep h3, .section-deep .s-title, .section-deep h4 { color: #fff; }
.section-deep .s-desc { color: rgba(255,255,255,.6); }
.s-head { max-width: 780px; margin: 0 auto 52px; text-align: center; }
.s-title { font-size: 34px; letter-spacing: .01em; margin-bottom: 14px; }
.s-desc { font-size: 16px; color: var(--muted); line-height: 1.9; }
.s-head .eyebrow {
  display: inline-block; margin-bottom: 14px; font-size: 12.5px; font-weight: 700;
  letter-spacing: .22em; color: var(--primary);
}
.section-deep .s-head .eyebrow { color: var(--accent); }
.s-title::after {
  content: ""; display: block; width: 46px; height: 3px; margin: 18px auto 0;
  border-radius: 3px; background: var(--grad);
}

/* Hero */
.hero { position: relative; overflow: hidden; color: #fff; background: var(--bg-deep); padding: 92px 0 76px; }
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(900px 460px at 78% -10%, rgba(168,224,99,.18), transparent 62%),
    radial-gradient(760px 420px at 12% 110%, rgba(62,155,47,.36), transparent 60%),
    radial-gradient(420px 260px at 92% 82%, rgba(245,166,35,.12), transparent 70%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; opacity: .32;
  background-image: linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(1000px 600px at 50% 20%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(1000px 600px at 50% 20%, #000 20%, transparent 78%);
}
.hero .wrap { position: relative; z-index: 2; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.hero h1 { font-size: 50px; line-height: 1.22; color: #fff; font-weight: 800; letter-spacing: -.01em; }
.hero h1 em {
  font-style: normal;
  background: linear-gradient(96deg, var(--neon), #FFFFFF 62%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .lead { font-size: 17px; line-height: 1.95; color: rgba(255,255,255,.76); margin: 22px 0 30px; max-width: 640px; }
.hero .lead b { color: #fff; font-weight: 600; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 36px; }
.hero-actions .btn-ghost { border-color: rgba(168,224,99,.45); color: rgba(238,248,228,.92); }
.hero-actions .btn-ghost:hover { border-color: var(--neon); color: var(--neon); }
.hero-points { display: flex; gap: 26px; flex-wrap: wrap; font-size: 13.5px; color: rgba(255,255,255,.66); }
.hero-points span::before { content: "\25C6"; color: var(--accent); margin-right: 7px; font-size: 10px; }

.hero-card {
  background: rgba(255,255,255,.055); border: 1px solid rgba(168,224,99,.20);
  border-radius: 18px; padding: 26px; backdrop-filter: blur(8px);
  box-shadow: 0 24px 60px rgba(0,0,0,.32);
}
.hero-card .hc-title { font-size: 13px; letter-spacing: .16em; color: rgba(255,255,255,.55); margin-bottom: 18px; }
.hero-stat { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 12px; }
.hero-stat div b {
  display: block; font-size: 30px; font-weight: 800; line-height: 1.1; font-variant-numeric: tabular-nums;
  background: linear-gradient(96deg, var(--neon), #FFFFFF);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-stat div span { font-size: 12.5px; color: rgba(255,255,255,.6); }
.hero-card .hc-foot { margin-top: 20px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.12); font-size: 12.5px; color: rgba(255,255,255,.55); }

/* 客户墙条 */
.brandbar { padding: 34px 0; border-bottom: 1px solid var(--line); background: #fff; }
.brandbar .bb-label { font-size: 12.5px; color: var(--muted); letter-spacing: .1em; margin-bottom: 14px; }
.brandbar .bb-list { display: flex; flex-wrap: wrap; gap: 10px; }
.brandbar .bb-list i {
  font-style: normal; font-size: 13px; padding: 6px 14px; border-radius: 6px;
  background: var(--bg-soft); border: 1px solid var(--line); color: var(--text);
}

/* ===== 5. 组件 ===== */
.grid { display: grid; gap: 22px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }

.card {
  position: relative; padding: 30px 28px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius);
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: rgba(62,155,47,.35); }
.card .ico {
  width: 46px; height: 46px; border-radius: 11px; display: grid; place-items: center;
  font-size: 21px; margin-bottom: 16px; background: var(--grad-soft); border: 1px solid rgba(62,155,47,.18); color: var(--primary-d);
}
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { font-size: 14px; color: var(--muted); margin-bottom: 12px; line-height: 1.8; }
.card ul { font-size: 13.5px; color: var(--muted); list-style: none; padding: 0; margin: 0; }
.card ul li { padding-left: 16px; position: relative; margin-bottom: 5px; }
.card ul li::before { content: ""; position: absolute; left: 0; top: 11px; width: 5px; height: 5px; border-radius: 50%; background: var(--primary); }
.card .more { font-size: 13px; font-weight: 600; color: var(--primary); }
.card .more::after { content: " \2192"; }

/* 业务集群面板 */
.bu { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.bu-panel { border: 1px solid var(--line); border-radius: 18px; overflow: hidden; background: #fff; transition: box-shadow .3s, transform .3s; }
.bu-panel:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.bu-head { padding: 28px 30px 22px; color: #fff; position: relative; overflow: hidden; }
.bu-head::after {
  content: ""; position: absolute; right: -40px; top: -50px; width: 180px; height: 180px;
  border-radius: 50%; background: rgba(255,255,255,.09);
}
.bu-panel:nth-child(1) .bu-head { background: linear-gradient(125deg, #1C4A12, #3E9B2F); }
.bu-panel:nth-child(2) .bu-head { background: linear-gradient(125deg, #7A4E06, #E89312); }
.bu-head .bu-no { font-size: 12px; letter-spacing: .2em; opacity: .72; }
.bu-head h3 { font-size: 25px; color: #fff; margin: 6px 0 8px; }
.bu-head p { font-size: 14px; color: rgba(255,255,255,.74); margin: 0; position: relative; z-index: 2; }
.bu-body { padding: 8px 30px 26px; }
.bu-item { display: flex; gap: 14px; padding: 16px 0; border-bottom: 1px dashed var(--line); }
.bu-item:last-child { border-bottom: 0; }
.bu-item .bi-n {
  flex: none; width: 26px; height: 26px; border-radius: 7px; display: grid; place-items: center;
  font-size: 12px; font-weight: 700; color: var(--primary-d); background: var(--grad-soft); margin-top: 2px;
}
.bu-item h4 { font-size: 15.5px; margin-bottom: 3px; }
.bu-item p { font-size: 13.5px; color: var(--muted); margin: 0; line-height: 1.75; }

/* 技术栈标签墙 */
.stack { display: flex; flex-wrap: wrap; gap: 10px; }
.stack span {
  padding: 7px 15px; border-radius: 8px; background: #fff; border: 1px solid var(--line);
  font-size: 13.5px; color: var(--text); transition: .2s;
}
.stack span:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.section-deep .stack span { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.16); color: rgba(255,255,255,.8); }
.section-deep .stack span:hover { border-color: var(--neon); color: var(--neon); }

/* 交付流程 */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; margin-top: 8px; }
.flow-step { position: relative; padding: 0 18px 0 0; }
.flow-step::before { content: ""; position: absolute; left: 0; right: 0; top: 21px; height: 2px; background: var(--line); }
.flow-step:first-child::before { left: 50%; }
.flow-step:last-child::before { right: 50%; }
.flow-step .fs-n {
  position: relative; z-index: 2; width: 44px; height: 44px; margin: 0 auto 18px;
  border-radius: 50%; display: grid; place-items: center; background: #fff;
  border: 2px solid var(--line); font-weight: 800; color: var(--muted); font-size: 15px; transition: .25s;
}
.flow-step:hover .fs-n { border-color: var(--primary); color: var(--primary); box-shadow: 0 0 0 6px rgba(62,155,47,.10); }
.flow-step h4 { text-align: center; font-size: 16px; margin-bottom: 6px; }
.flow-step p { text-align: center; font-size: 13.5px; color: var(--muted); margin: 0; }

/* 深色底下的流程节点 */
.section-deep .flow-step p { color: rgba(255,255,255,.62); }
.section-deep .flow-step::before { background: rgba(255,255,255,.14); }
.section-deep .flow-step .fs-n {
  background: #10240F; border-color: rgba(168,224,99,.38); color: var(--neon);
}
.section-deep .flow-step:hover .fs-n { box-shadow: 0 0 0 6px rgba(168,224,99,.10); }

/* 深色区按钮组 */
.section-deep .btn-line { background: transparent; border-color: rgba(255,255,255,.28); color: #fff; }
.section-deep .btn-line:hover { border-color: var(--neon); color: var(--neon); }

/* 时间轴 */
.timeline { position: relative; padding-left: 34px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(180deg, var(--primary), rgba(168,224,99,.35)); }
.tl-item { position: relative; margin-bottom: 30px; }
.tl-item::before {
  content: ""; position: absolute; left: -34px; top: 8px; width: 16px; height: 16px;
  border-radius: 50%; background: #fff; border: 3px solid var(--primary);
}
.tl-item .tl-y { font-size: 15px; font-weight: 800; color: var(--primary); letter-spacing: .04em; }
.tl-item h4 { font-size: 16.5px; margin: 2px 0 4px; }
.tl-item p { font-size: 14px; color: var(--muted); margin: 0; }

/* 案例墙 */
.case-wall { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.case-cell {
  padding: 14px 10px; text-align: center; border-radius: 10px;
  background: #fff; border: 1px solid var(--line); font-size: 13px; color: var(--text);
  transition: .22s; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.case-cell:hover { background: var(--grad); color: #fff; border-color: transparent; transform: translateY(-3px); }
.case-wall-big { grid-template-columns: repeat(3, 1fr); gap: 18px; }

/* 服务信条卡 */
.credo { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.credo-item {
  padding: 30px 26px; border-radius: var(--radius);
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.13);
  transition: .25s;
}
.credo-item:hover { transform: translateY(-5px); border-color: rgba(168,224,99,.4); background: rgba(255,255,255,.08); }
.credo-item .c-ico {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  font-size: 21px; margin-bottom: 16px; color: var(--neon);
  background: rgba(168,224,99,.10); border: 1px solid rgba(168,224,99,.28);
}
.credo-item h3 { font-size: 17.5px; color: #fff; margin-bottom: 8px; }
.credo-item p { font-size: 13.5px; color: rgba(255,255,255,.62); margin: 0; line-height: 1.85; }

/* 数据条 */
.statbar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.statbar div { background: #fff; padding: 28px 20px; text-align: center; }
.statbar b { display: block; font-size: 34px; font-weight: 800; color: var(--ink); line-height: 1.15; font-variant-numeric: tabular-nums; }
.statbar b i { font-style: normal; font-size: 18px; color: var(--primary); margin-left: 3px; }
.statbar span { font-size: 13.5px; color: var(--muted); }

/* CTA 通栏 */
.cta-band {
  background: var(--grad); border-radius: 20px; padding: 54px 48px; color: #fff;
  display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
  box-shadow: 0 24px 60px rgba(42,110,30,.30);
  position: relative; overflow: hidden;
}
.cta-band::after {
  content: ""; position: absolute; right: -60px; top: -80px; width: 260px; height: 260px;
  border-radius: 50%; background: rgba(255,255,255,.10);
}
.cta-band h3 { font-size: 28px; color: #fff; margin-bottom: 8px; }
.cta-band p { margin: 0; color: rgba(255,255,255,.85); font-size: 15px; }
.cta-band .btns { display: flex; gap: 12px; }
.cta-band .btn-ghost { border-color: rgba(255,255,255,.5); }
.cta-band .btn-ghost:hover { border-color: #fff; }

/* 面包屑 */
.crumb { font-size: 13px; color: var(--muted); padding: 18px 0; border-bottom: 1px solid var(--line); }
.crumb a:hover { color: var(--primary); }
.crumb i { font-style: normal; margin: 0 8px; opacity: .5; }

/* 子页 Banner */
.subbanner { position: relative; padding: 66px 0 54px; color: #fff; overflow: hidden; background: var(--bg-deep); }
.subbanner::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(760px 360px at 80% 0%, rgba(168,224,99,.16), transparent 62%),
              radial-gradient(700px 400px at 8% 120%, rgba(62,155,47,.34), transparent 60%);
}
.subbanner::after {
  content: ""; position: absolute; inset: 0; opacity: .3;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 56px 56px;
}
.subbanner .wrap { position: relative; z-index: 2; }
.subbanner h1 { font-size: 40px; color: #fff; margin-bottom: 12px; }
.subbanner p { font-size: 16px; color: rgba(255,255,255,.72); margin: 0; max-width: 720px; }

/* 正文排版 */
.article { font-size: 15.5px; line-height: 1.95; }
.article h2 { font-size: 22px; margin-top: 1.8em; padding-left: 12px; border-left: 4px solid var(--primary); }
.article h3 { font-size: 18px; margin-top: 1.4em; }
.article img { border-radius: 10px; margin: 1em 0; }
.article blockquote {
  margin: 1.6em 0; padding: 18px 22px; background: var(--bg-soft);
  border-left: 4px solid var(--primary); border-radius: 0 10px 10px 0; color: var(--muted);
}
.article blockquote p:last-child { margin: 0; }

/* GEO 答案前置块 */
.answer-box {
  border: 1px solid rgba(62,155,47,.26); border-left: 4px solid var(--primary);
  background: var(--grad-soft); border-radius: 0 12px 12px 0; padding: 20px 24px; margin-bottom: 32px;
}
.answer-box .ab-label { font-size: 12px; font-weight: 700; letter-spacing: .14em; color: var(--primary-d); margin-bottom: 8px; }
.answer-box p { margin: 0; font-size: 15.5px; line-height: 1.9; color: var(--text); }

/* FAQ */
.faq-item { border: 1px solid var(--line); border-radius: 12px; margin-bottom: 12px; overflow: hidden; background: #fff; }
.faq-q { padding: 16px 20px; font-weight: 600; font-size: 15.5px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq-q::after { content: "+"; font-size: 20px; color: var(--primary); font-weight: 400; flex: none; }
.faq-item.open .faq-q::after { content: "\2212"; }
.faq-a { padding: 0 20px; max-height: 0; overflow: hidden; transition: max-height .3s, padding .3s; font-size: 14.5px; color: var(--muted); line-height: 1.9; }
.faq-item.open .faq-a { max-height: 900px; padding: 0 20px 18px; }

/* 列表条目 */
.list-item { display: flex; gap: 22px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.list-item .li-img { flex: none; width: 200px; height: 130px; border-radius: 10px; overflow: hidden; background: var(--bg-soft); }
.list-item .li-img img { width: 100%; height: 100%; object-fit: cover; }
.list-item .li-img .li-img-ph { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%;
  background: linear-gradient(135deg, #eef2fb 0%, #e2e9f7 100%); color: #3a6fd8; font-size: 16px; font-weight: 700;
  letter-spacing: 1px; line-height: 1.3; text-align: center; padding: 12px; overflow: hidden;
  border: 1px solid #dbe3f2; box-sizing: border-box; }
.list-item h3 { font-size: 18px; margin-bottom: 6px; }
.list-item .li-meta { font-size: 12.5px; color: var(--muted); margin-bottom: 8px; }
.list-item p { font-size: 14px; color: var(--muted); margin: 0; }

/* 悬浮客服 / 回到顶部 */
.float-contact { position: fixed; right: 18px; top: 50%; transform: translateY(-50%); z-index: 80; display: flex; flex-direction: column; gap: 10px; }
.float-contact a {
  width: 52px; height: 52px; border-radius: 12px; background: #fff; border: 1px solid var(--line);
  display: grid; place-items: center; font-size: 11.5px; color: var(--muted);
  box-shadow: var(--shadow); transition: .22s;
}
.float-contact a i { display: block; font-style: normal; font-size: 17px; color: var(--primary); margin-bottom: 1px; }
.float-contact a:hover { background: var(--grad); border-color: transparent; color: #fff; }
.float-contact a:hover i { color: #fff; }
.backtop {
  position: fixed; right: 18px; bottom: 26px; z-index: 80; width: 44px; height: 44px; border-radius: 50%;
  background: var(--ink); color: #fff; display: grid; place-items: center; cursor: pointer;
  opacity: 0; visibility: hidden; transition: .25s; box-shadow: var(--shadow);
}
.backtop.show { opacity: 1; visibility: visible; }

/* 滚动出现 */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* 内容 + 侧栏两栏布局 */
.detail { display: grid; grid-template-columns: 1fr 300px; gap: 44px; align-items: start; }
.side .box {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 22px;
  margin-bottom: 18px; background: #fff;
}
.side .box h4 { font-size: 15px; margin-bottom: 14px; padding-left: 10px; border-left: 3px solid var(--primary); }
.side .box ul { list-style: none; padding: 0; margin: 0; }
.side .box li { margin-bottom: 10px; font-size: 14px; }
.side .box li a { color: var(--text); }
.side .box li a:hover { color: var(--primary); }
.side .tel {
  font-size: 22px; font-weight: 800; color: var(--primary); text-align: center;
  margin-bottom: 6px; font-variant-numeric: tabular-nums;
}
.meta {
  display: flex; gap: 20px; flex-wrap: wrap; font-size: 13px; color: var(--muted);
  padding-bottom: 16px; border-bottom: 1px solid var(--line); margin-bottom: 20px;
}
.pagebar { text-align: center; margin-top: 30px; }
.pagebar a, .pagebar span {
  display: inline-block; padding: 8px 14px; margin: 0 4px;
  border: 1px solid var(--line); border-radius: 8px; font-size: 14px; background: #fff;
}
.pagebar a:hover { border-color: var(--primary); color: var(--primary); }
.pagebar span { background: var(--grad); color: #fff; border-color: transparent; }

/* ===== 6. 页脚 ===== */
.footer { background: var(--bg-deep); color: rgba(255,255,255,.6); padding: 62px 0 0; font-size: 13.5px; }
.footer .f-top { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr 1fr 1.1fr; gap: 32px; padding-bottom: 44px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 18px; letter-spacing: .04em; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 10px; }
.footer a { color: rgba(255,255,255,.6); }
.footer a:hover { color: var(--neon); }
.footer .f-brand p { line-height: 1.9; margin-bottom: 16px; }
.footer .f-contact div { margin-bottom: 9px; }
.footer .f-contact b { color: #fff; font-size: 17px; font-variant-numeric: tabular-nums; }
.footer .f-bot {
  border-top: 1px solid rgba(255,255,255,.1); padding: 22px 0 30px;
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; font-size: 12.5px; color: rgba(255,255,255,.42);
}
.footer .f-bot a { color: rgba(255,255,255,.42); }

/* ===== 7. 响应式 ===== */
@media (max-width: 1160px) {
  .grid.g4 { grid-template-columns: repeat(2, 1fr); }
  .case-wall { grid-template-columns: repeat(4, 1fr); }
  .statbar { grid-template-columns: repeat(2, 1fr); }
  .credo { grid-template-columns: repeat(2, 1fr); }
  .footer .f-top { grid-template-columns: 1fr 1fr 1fr; }
}
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero h1 { font-size: 36px; }
  .bu { grid-template-columns: 1fr; }
  .grid.g3, .grid.g2 { grid-template-columns: 1fr 1fr; }
  .flow { grid-template-columns: repeat(2, 1fr); gap: 26px 0; }
  .flow-step::before { display: none; }
  .nav {
    display: none; position: absolute; left: 0; right: 0; top: var(--nav-h); background: #fff;
    border-bottom: 1px solid var(--line); flex-direction: column; padding: 8px 0; box-shadow: var(--shadow);
  }
  .nav.open { display: flex; }
  .nav > li > a { height: 46px; line-height: 46px; padding: 0 24px; }
  .nav .sub {
    position: static; transform: none; opacity: 1; visibility: visible; box-shadow: none;
    border: 0; border-radius: 0; padding: 0 0 6px 24px; min-width: 0; background: transparent;
  }
  .nav .sub a { padding: 7px 14px; }
  .menu-toggle { display: block; }
  .header .cta .tel { display: none; }
  .subbanner h1 { font-size: 30px; }
  .s-title { font-size: 27px; }
  .list-item { flex-direction: column; }
  .list-item .li-img { width: 100%; height: 180px; }
  .detail { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  body { font-size: 14.5px; }
  .wrap { padding: 0 16px; }
  .hero { padding: 58px 0 48px; }
  .hero h1 { font-size: 28px; }
  .section { padding: 52px 0; }
  .grid.g2, .grid.g3, .grid.g4, .case-wall-big { grid-template-columns: 1fr; }
  .case-wall { grid-template-columns: repeat(2, 1fr); }
  .statbar { grid-template-columns: 1fr; }
  .credo { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr; }
  .cta-band { padding: 34px 24px; }
  .cta-band h3 { font-size: 22px; }
  .footer .f-top { grid-template-columns: 1fr; }
  .float-contact { right: 10px; }
  .topbar .left span + span { display: none; }
}

/* ===== v3.2 官方物料版块 ===== */
.path6 { display:flex; flex-wrap:wrap; align-items:center; gap:8px; margin-top:18px; }
.path6 span { background:#F1F7EC; border:1px solid #DCEBCF; color:#2A6E1E; font-weight:600; font-size:14px; padding:9px 16px; border-radius:999px; }
.path6 i { color:var(--primary); font-style:normal; font-weight:700; }
.val4 { display:grid; grid-template-columns:repeat(2,1fr); gap:14px; }
.val4 > div { background:#fff; border:1px solid var(--line); border-left:3px solid var(--primary); border-radius:10px; padding:16px 18px; }
.val4 b { display:block; font-size:16px; margin-bottom:5px; color:var(--ink); }
.val4 span { font-size:13.5px; color:var(--muted); line-height:1.65; display:block; }
.svc5 { display:grid; grid-template-columns:1fr; gap:12px; }
.svc5 > div { background:#fff; border:1px solid var(--line); border-radius:10px; padding:14px 18px; }
.svc5 b { display:block; font-size:15.5px; margin-bottom:4px; color:var(--primary); }
.svc5 span { font-size:13.5px; color:var(--muted); line-height:1.65; }
.loop7 { display:flex; flex-wrap:wrap; gap:10px; }
.loop7 span { background:#0B1F10; color:#fff; font-size:13.5px; font-weight:600; padding:9px 16px; border-radius:8px; }
.win-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.win-card { background:#fff; border:1px solid var(--line); border-radius:14px; padding:22px; position:relative; overflow:hidden; transition:.25s; }
.win-card:hover { transform:translateY(-4px); box-shadow:var(--shadow-lg); border-color:#C4E0AF; }
.win-card .wc-ind { font-size:13px; color:var(--muted); font-weight:600; }
.win-card .wc-num { font-size:30px; font-weight:800; color:var(--primary); margin:6px 0 4px; font-variant-numeric:tabular-nums; }
.win-card .wc-num small { font-size:14px; font-weight:700; }
.win-card .wc-desc { font-size:13px; color:var(--muted); line-height:1.7; }
.material-row { display:grid; grid-template-columns:repeat(3,1fr); gap:18px; margin-top:8px; }
.material-row img { width:100%; border-radius:12px; border:1px solid var(--line); box-shadow:var(--shadow); display:block; }
.verify-chip { display:inline-flex; align-items:center; gap:10px; background:rgba(245,166,35,.12); border:1px dashed rgba(245,166,35,.55); color:#F5A623; border-radius:999px; padding:9px 18px; font-size:14px; font-weight:600; }
.verify-chip b { font-weight:800; letter-spacing:.5px; }
@media (max-width:860px){ .val4{grid-template-columns:1fr;} .win-grid{grid-template-columns:1fr 1fr;} .material-row{grid-template-columns:1fr;} }