/* ==========================================================================
   人为本企护助手 | 江苏人为本信息科技有限公司
   配色取自企业 LOGO：藏青 #003060 + 金 #c8a44d
   ========================================================================== */

:root {
  --primary: #003060;
  --primary-dark: #001d3d;
  --primary-mid: #0d4478;
  --primary-light: #e9f0f8;
  --accent: #c8a44d;
  --accent-dark: #a8862f;
  --accent-light: #fdf8ea;
  --hot: #d92d20;

  --text: #1b2733;
  --text-2: #516274;
  --text-3: #8a99a8;

  --bg: #ffffff;
  --bg-2: #f5f7fa;
  --bg-3: #eef2f7;
  --border: #e3e9f0;

  --shadow: 0 4px 24px rgba(0, 48, 96, .08);
  --shadow-lg: 0 16px 48px rgba(0, 48, 96, .14);

  --radius: 14px;
  --radius-sm: 9px;
  --w: 1200px;
  --font: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', Arial, sans-serif;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

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

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

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

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 30px; border-radius: 50px;
  font-size: 15px; font-weight: 600; cursor: pointer;
  border: 1.5px solid transparent;
  transition: all .28s ease; white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 20px rgba(0, 48, 96, .22); }
.btn-primary:hover { background: var(--primary-mid); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(0, 48, 96, .3); }
.btn-gold { background: var(--accent); color: var(--primary-dark); box-shadow: 0 8px 20px rgba(200, 164, 77, .3); }
.btn-gold:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); }
.btn-ghost { border-color: rgba(255, 255, 255, .55); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .14); border-color: #fff; }
.btn-line { border-color: var(--primary); color: var(--primary); }
.btn-line:hover { background: var(--primary); color: #fff; }

/* ---------- 顶部导航 ---------- */
.topbar {
  background: var(--primary-dark); color: rgba(255, 255, 255, .78);
  font-size: 13.5px; padding: 7px 0;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.topbar .hotline { color: #fff; font-weight: 600; }
.topbar .hotline strong { color: #ffcf5c; letter-spacing: .5px; }

.header {
  position: sticky; top: 0; z-index: 90;
  background: rgba(255, 255, 255, .97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header .container { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 74px; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo img { height: 50px; width: 50px; object-fit: contain; }
.logo-txt strong { display: block; font-size: 19px; color: var(--primary); letter-spacing: .5px; line-height: 1.3; }
.logo-txt span { display: block; font-size: 11.5px; color: var(--text-3); letter-spacing: 2.6px; }

.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav > li { position: relative; }
.nav > li > a {
  display: block; padding: 10px 14px; font-size: 15px; color: var(--text-2);
  border-radius: var(--radius-sm); transition: all .2s;
}
.nav > li > a:hover, .nav > li > a.active { color: var(--primary); background: var(--primary-light); }

.dropdown {
  position: absolute; top: calc(100% + 8px); left: 0; min-width: 230px;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 8px; opacity: 0; visibility: hidden;
  transform: translateY(6px); transition: all .22s;
}
.nav > li:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.nav > li:last-child .dropdown { left: auto; right: 0; }

/* 下拉指示箭头 */
.caret {
  display: inline-block; width: 0; height: 0; margin-left: 6px; vertical-align: middle;
  border-left: 4px solid transparent; border-right: 4px solid transparent;
  border-top: 5px solid currentColor; opacity: .7; transition: transform .22s;
}
.nav > li:hover .caret { transform: rotate(180deg); opacity: 1; }
.dropdown a { display: block; padding: 9px 14px; font-size: 14.5px; color: var(--text-2); border-radius: var(--radius-sm); }
.dropdown a:hover { background: var(--primary-light); color: var(--primary); }

/* 「服务体系」下拉项暂隐藏（用户 2026-09-23 要求；恢复只需删掉本条） */
.nav > li.has-sub { display: none; }

.header-cta { display: flex; align-items: center; gap: 14px; }
.header-phone { text-align: right; line-height: 1.25; }
.header-phone span { display: block; font-size: 12px; color: var(--text-3); }
.header-phone strong { font-size: 19px; color: var(--hot); font-weight: 700; letter-spacing: .3px; }
.header .btn { padding: 11px 22px; font-size: 14.5px; }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--primary); margin: 5px 0; border-radius: 2px; transition: .3s; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, #001d3d 0%, #003060 45%, #0d4478 100%);
  color: #fff; padding: 86px 0 78px;
}
.hero::after {
  content: ""; position: absolute; right: -140px; top: -140px;
  width: 520px; height: 520px; border-radius: 50%;
  background: radial-gradient(circle, rgba(200, 164, 77, .22) 0%, rgba(200, 164, 77, 0) 68%);
}
.hero-grid { display: grid; grid-template-columns: 1.06fr .94fr; gap: 56px; align-items: center; position: relative; z-index: 2; }
.hero h1 { font-size: 42px; line-height: 1.3; letter-spacing: .5px; margin-bottom: 20px; font-weight: 700; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p.lead { font-size: 17px; color: rgba(255, 255, 255, .84); margin-bottom: 30px; max-width: 560px; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 34px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-tags span {
  font-size: 13px; padding: 6px 15px; border-radius: 50px;
  background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .18);
}
.hero-panel {
  background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 20px; padding: 26px; backdrop-filter: blur(6px);
}
.hero-panel h3 { font-size: 16px; color: #fff; margin-bottom: 18px; display: flex; align-items: center; gap: 9px; }
.hero-panel h3 b { color: var(--accent); font-size: 15px; }
.mini-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.mini {
  background: rgba(255, 255, 255, .07); border-radius: var(--radius-sm);
  padding: 14px; border: 1px solid rgba(255, 255, 255, .1);
}
.mini strong { display: block; font-size: 14.5px; color: #fff; margin-bottom: 3px; }
.mini span { font-size: 12.5px; color: rgba(255, 255, 255, .6); }

/* ---------- 通用区块 ---------- */
.section { padding: 76px 0; }
.section.bg2 { background: var(--bg-2); }
.section.bg3 { background: var(--bg-3); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 46px; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 2px;
  color: var(--accent-dark); background: var(--accent-light);
  padding: 5px 16px; border-radius: 50px; margin-bottom: 14px;
}
.section-head h2 { font-size: 32px; color: var(--primary); line-height: 1.4; margin-bottom: 14px; }
.section-head p { color: var(--text-2); font-size: 15.5px; }

/* ---------- 六维守护卡片 ---------- */
.guard-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.guard-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 26px; transition: all .3s; position: relative; overflow: hidden;
}
.guard-card::before {
  content: ""; position: absolute; left: 0; top: 0; height: 4px; width: 0;
  background: linear-gradient(90deg, var(--primary), var(--accent)); transition: width .35s;
}
.guard-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.guard-card:hover::before { width: 100%; }
.guard-icon {
  width: 54px; height: 54px; border-radius: 13px; display: flex; align-items: center; justify-content: center;
  background: var(--primary-light); color: var(--primary); margin-bottom: 18px;
}
.guard-icon svg { width: 27px; height: 27px; }
.guard-card h3 { font-size: 19px; color: var(--primary); margin-bottom: 8px; }
.guard-card .sub { font-size: 13px; color: var(--accent-dark); font-weight: 600; letter-spacing: .5px; margin-bottom: 12px; }
.guard-card p { font-size: 14.5px; color: var(--text-2); min-height: 52px; }
.guard-card .more { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: var(--primary); font-weight: 600; margin-top: 16px; }
.guard-card:hover .more { color: var(--accent-dark); gap: 10px; }

/* ---------- 优势 ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.adv { background: #fff; border-radius: var(--radius); padding: 26px 22px; border: 1px solid var(--border); text-align: center; }
.adv b { display: block; font-size: 30px; color: var(--primary); line-height: 1.2; }
.adv b i { font-style: normal; font-size: 16px; color: var(--accent-dark); }
.adv span { display: block; font-size: 14px; color: var(--text-2); margin-top: 6px; }

/* ---------- 流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: st; }
.step { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 22px; position: relative; }
.step::before {
  counter-increment: st; content: "0" counter(st);
  font-size: 26px; font-weight: 700; color: var(--primary-light);
  position: absolute; right: 18px; top: 14px;
}
.step h4 { font-size: 16.5px; color: var(--primary); margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--text-2); }

/* ---------- 服务页 ---------- */
.page-hero {
  background: linear-gradient(135deg, #001d3d 0%, #003060 60%, #0d4478 100%);
  color: #fff; padding: 62px 0 56px; position: relative; overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; right: -100px; bottom: -160px;
  width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(200, 164, 77, .18) 0%, rgba(200, 164, 77, 0) 70%);
}
.page-hero .badge {
  display: inline-block; font-size: 13px; letter-spacing: 1px;
  border: 1px solid rgba(255, 255, 255, .3); border-radius: 50px;
  padding: 5px 16px; margin-bottom: 16px; color: var(--accent);
}
.page-hero h1 { font-size: 36px; line-height: 1.35; margin-bottom: 14px; }
.page-hero p { font-size: 16px; color: rgba(255, 255, 255, .82); max-width: 700px; }
.breadcrumb { font-size: 13.5px; color: rgba(255, 255, 255, .6); margin-top: 20px; position: relative; z-index: 2; }
.breadcrumb a:hover { color: var(--accent); }

.svc-layout { display: grid; grid-template-columns: 1fr 320px; gap: 46px; align-items: start; }
.svc-main h2 { font-size: 25px; color: var(--primary); margin: 0 0 16px; }
.svc-main h2:not(:first-child) { margin-top: 42px; }
.svc-main p { color: var(--text-2); margin-bottom: 14px; }
.itm-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 20px 0 6px; }
.itm { background: var(--bg-2); border-left: 3px solid var(--accent); border-radius: var(--radius-sm); padding: 18px 20px; }
.itm h4 { font-size: 16px; color: var(--primary); margin-bottom: 6px; }
.itm p { font-size: 14px; color: var(--text-2); margin: 0; }
.check-list { margin: 8px 0 0; }
.check-list li { position: relative; padding-left: 26px; margin-bottom: 10px; font-size: 15px; color: var(--text-2); }
.check-list li::before {
  content: ""; position: absolute; left: 0; top: 8px; width: 15px; height: 15px;
  border-radius: 50%; background: var(--accent-light); border: 1px solid var(--accent);
}
.check-list li::after {
  content: ""; position: absolute; left: 4.5px; top: 11.5px; width: 6px; height: 3px;
  border-left: 1.6px solid var(--accent-dark); border-bottom: 1.6px solid var(--accent-dark);
  transform: rotate(-45deg);
}

/* 侧栏 */
.side-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.side-card + .side-card { margin-top: 20px; }
.side-card h3 { font-size: 17px; color: var(--primary); margin-bottom: 14px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.side-nav a { display: block; padding: 10px 14px; font-size: 14.5px; color: var(--text-2); border-radius: var(--radius-sm); margin-bottom: 4px; }
.side-nav a:hover, .side-nav a.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }
.side-contact p { font-size: 14.5px; color: var(--text-2); margin-bottom: 10px; }
.side-contact .tel { font-size: 24px; font-weight: 700; color: var(--hot); letter-spacing: .5px; display: block; margin-bottom: 4px; }
.side-card .btn { width: 100%; justify-content: center; margin-top: 8px; }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--border); }
.faq-item { border-bottom: 1px solid var(--border); padding: 20px 0; }
.faq-item h4 { font-size: 16.5px; color: var(--primary); margin-bottom: 8px; display: flex; gap: 10px; }
.faq-item h4::before { content: "Q"; color: var(--accent-dark); font-weight: 700; }
.faq-item p { font-size: 14.5px; color: var(--text-2); padding-left: 22px; }

/* ---------- CTA 条 ---------- */
.cta-strip {
  background: linear-gradient(120deg, var(--primary) 0%, var(--primary-mid) 100%);
  border-radius: 20px; padding: 44px 48px; color: #fff;
  display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap;
}
.cta-strip h3 { font-size: 25px; margin-bottom: 8px; }
.cta-strip p { color: rgba(255, 255, 255, .8); font-size: 15px; }
.cta-strip .btns { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- 关于/联系 ---------- */
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 50px; align-items: center; }
.about-grid h2 { font-size: 29px; color: var(--primary); margin-bottom: 16px; }
.about-grid p { color: var(--text-2); margin-bottom: 14px; }
.promise { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 22px; }
.promise div { background: var(--bg-2); border-radius: var(--radius-sm); padding: 14px 16px; font-size: 14.5px; color: var(--text-2); }
.promise b { display: block; color: var(--primary); font-size: 15.5px; margin-bottom: 3px; }

.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.info-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 24px; text-align: center; }
.info-card .ic {
  width: 48px; height: 48px; margin: 0 auto 14px; border-radius: 50%;
  background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
}
.info-card .ic svg { width: 23px; height: 23px; }
.info-card h4 { font-size: 16px; color: var(--primary); margin-bottom: 8px; }
.info-card p, .info-card a { font-size: 14.5px; color: var(--text-2); word-break: break-all; }
.info-card .tel { font-size: 21px; font-weight: 700; color: var(--hot); }

.form-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 34px; box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 14px; color: var(--text-2); margin-bottom: 7px; }
.field label i { color: var(--hot); font-style: normal; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; font-size: 15px; font-family: var(--font);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg-2); color: var(--text); transition: .2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(0, 48, 96, .07);
}
.field textarea { resize: vertical; min-height: 110px; }
.form-tip { font-size: 13px; color: var(--text-3); margin-top: 12px; }

/* ---------- 页脚 ---------- */
.footer { background: var(--primary-dark); color: rgba(255, 255, 255, .68); padding: 56px 0 0; font-size: 14.5px; }
.footer-top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: 36px; padding-bottom: 40px; }
.footer h4 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.footer .flogo { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer .flogo img { height: 44px; width: 44px; }
.footer .flogo strong { color: #fff; font-size: 17px; display: block; }
.footer .flogo span { font-size: 11px; letter-spacing: 2.4px; color: rgba(255, 255, 255, .5); }
.footer p { line-height: 1.85; }
.footer ul li { margin-bottom: 9px; }
.footer ul a:hover { color: var(--accent); }
.footer .fline { margin-bottom: 10px; display: flex; gap: 9px; }
.footer .fline b { color: #fff; font-weight: 600; min-width: 58px; }
.footer .fline a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1); padding: 20px 0;
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  font-size: 13.5px; color: rgba(255, 255, 255, .5);
}
.footer-bottom a:hover { color: var(--accent); }

/* ---------- 浮动咨询 ---------- */
.float-bar { position: fixed; right: 20px; bottom: 28px; z-index: 80; display: flex; flex-direction: column; gap: 10px; }
.float-item {
  width: 56px; height: 56px; border-radius: 50%; background: #fff; border: 1px solid var(--border);
  box-shadow: var(--shadow-lg); display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-size: 10.5px; color: var(--text-2); transition: .25s; gap: 1px;
}
.float-item svg { width: 21px; height: 21px; }
.float-item:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-3px); }
.float-item.tel { background: var(--hot); border-color: var(--hot); color: #fff; }
.float-item.tel:hover { background: #b91c1c; }

/* ---------- 滚动动画 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .hero-grid, .about-grid { grid-template-columns: 1fr; gap: 36px; }
  .guard-grid, .adv-grid, .steps { grid-template-columns: 1fr 1fr; }
  .svc-layout { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .nav { display: none; }

  /* 移动端：服务体系恢复显示（6 项平铺，不依赖 hover） */
  .nav > li.has-sub { display: block; }
  .nav > li.has-sub > a { font-weight: 600; }
  .nav.open .dropdown { display: block; }
  .nav.open {
    display: flex; flex-direction: column; align-items: stretch;
    position: absolute; top: 100%; left: 0; right: 0;
    background: #fff; padding: 14px 20px 20px; border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg); gap: 2px;
  }
  .nav.open .dropdown { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; padding: 0 0 0 14px; }
  .nav-toggle { display: block; }
}
@media (max-width: 768px) {
  body { font-size: 15.5px; }
  .section { padding: 56px 0; }
  .hero { padding: 60px 0 54px; }
  .hero h1 { font-size: 29px; }
  .page-hero h1 { font-size: 27px; }
  .section-head h2 { font-size: 24px; }
  .guard-grid, .adv-grid, .steps, .itm-grid, .info-grid, .promise, .form-row { grid-template-columns: 1fr; }
  .cta-strip { padding: 32px 24px; }
  .about-grid h2 { font-size: 24px; }
  .footer-top { grid-template-columns: 1fr; gap: 26px; }
  .header .btn { display: none; }
  .float-bar { right: 12px; bottom: 16px; }
}


/* ---------- 痛点共鸣区 ---------- */
.pain-section { background: linear-gradient(180deg, #f7f9fc 0%, #ffffff 100%); }
.pain-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; max-width: 1020px; margin: 0 auto; }
.pain-item {
  background: #fff; border: 1px solid var(--border); border-left: 3px solid #e8743b;
  border-radius: var(--radius-sm); padding: 18px 22px; transition: all .25s;
}
.pain-item:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.pain-item h4 { font-size: 16.5px; color: var(--primary); margin-bottom: 6px; }
.pain-item p { font-size: 14.5px; color: var(--text-2); margin: 0; }
.pain-note { text-align: center; margin-top: 28px; font-size: 15.5px; color: var(--text-2); }
.pain-note b { color: var(--hot); }

/* ---------- 不守住的代价 ---------- */
.guard-risk {
  margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--border);
  font-size: 13.5px; color: var(--text-2); line-height: 1.7;
}
.guard-risk b { color: #c2410c; font-weight: 600; }
.risk-note {
  background: #fff7ed; border: 1px solid #fed7aa; border-left: 3px solid #e8743b;
  border-radius: var(--radius-sm); padding: 16px 20px; margin-bottom: 24px;
  font-size: 15px; color: #7c2d12;
}
.risk-note b { color: #c2410c; }

/* hero 说明行 */
.hero-note { font-size: 14.5px; color: rgba(255,255,255,.78); margin: -18px 0 22px; }
.hero-note b { color: var(--accent); }