/* ==========================================================
   畅捷通产品宣传站 - 全局样式
   ========================================================== */

:root {
  --brand: #1668dc;
  --brand-dark: #0b4aa8;
  --brand-deep: #08306b;
  --accent: #ff7a45;
  --accent-dark: #e85d24;
  --ink: #0f2744;
  --ink-2: #3b5169;
  --ink-3: #6b8299;
  --line: #e4ecf6;
  --bg: #ffffff;
  --bg-soft: #f4f8fd;
  --bg-blue: #eef4ff;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 10px rgba(15, 39, 68, .06);
  --shadow: 0 10px 30px rgba(15, 39, 68, .10);
  --shadow-lg: 0 24px 60px rgba(15, 39, 68, .16);
  --nav-h: 70px;
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC",
          -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5 { margin: 0; line-height: 1.3; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 演示信息提示条 ---------- */
.demo-notice {
  background: #fff8e6;
  border-bottom: 1px solid #ffe0a3;
  color: #8a5a00;
  font-size: 13px;
  padding: 8px 0;
}
.demo-notice .container {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: space-between;
}
.demo-notice a { color: #b06a00; text-decoration: underline; }
.demo-notice button {
  background: none; border: 0; cursor: pointer; color: #8a5a00;
  font-size: 18px; line-height: 1; padding: 0 4px;
}

/* ---------- 顶部导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .25s, border-color .25s;
}
.nav.scrolled { box-shadow: var(--shadow-sm); border-bottom-color: var(--line); }
.nav-inner {
  height: var(--nav-h);
  display: flex; align-items: center; gap: 32px;
}
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-deep) 100%);
  display: grid; place-items: center;
  color: #fff; font-weight: 800; font-size: 15px; letter-spacing: -.5px;
  box-shadow: 0 6px 16px rgba(22, 104, 220, .35);
}
.logo-text { display: flex; flex-direction: column; line-height: 1.25; }
.logo-text strong { font-size: 16px; letter-spacing: .2px; }
.logo-text span { font-size: 11px; color: var(--ink-3); letter-spacing: 1px; }

.nav-links { display: flex; gap: 4px; margin-right: auto; }
.nav-links a {
  padding: 8px 14px; border-radius: 8px; font-size: 14.5px;
  color: var(--ink-2); transition: .2s; white-space: nowrap;
}
.nav-links a:hover { color: var(--brand); background: var(--bg-blue); }
.nav-links a.active { color: var(--brand); font-weight: 600; }
.nav-links a.active::after {
  content: ""; display: block; height: 3px; width: 18px; margin: 4px auto -2px;
  border-radius: 2px; background: var(--brand);
}
.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-tel {
  display: flex; align-items: center; gap: 6px;
  font-weight: 700; color: var(--brand-dark); font-size: 16px;
}
.nav-tel svg { width: 16px; height: 16px; }

.nav-toggle {
  display: none; width: 40px; height: 40px; border: 0; background: none;
  cursor: pointer; padding: 8px;
}
.nav-toggle span {
  display: block; height: 2px; background: var(--ink); border-radius: 2px;
  margin: 5px 0; transition: .25s;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 24px; border-radius: 10px; font-size: 15px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; transition: .22s;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
  color: #fff; box-shadow: 0 8px 20px rgba(22, 104, 220, .28);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(22, 104, 220, .38); }
.btn-accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #fff; box-shadow: 0 8px 20px rgba(255, 122, 69, .3);
}
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(255, 122, 69, .4); }
.btn-ghost { background: #fff; color: var(--brand); border-color: #c9dcff; }
.btn-ghost:hover { border-color: var(--brand); background: var(--bg-blue); }
.btn-white { background: #fff; color: var(--brand-dark); }
.btn-white:hover { transform: translateY(-2px); }
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-lg { padding: 15px 32px; font-size: 16px; }
.btn svg { width: 16px; height: 16px; }

/* ---------- 通用区块 ---------- */
.section { padding: 92px 0; }
.section.soft { background: var(--bg-soft); }
.section.deep {
  background: linear-gradient(135deg, var(--brand-deep) 0%, #0d3f8a 60%, var(--brand) 100%);
  color: #fff;
}
.section-head { max-width: 720px; margin: 0 auto 52px; text-align: center; }
.section-head.left { margin-left: 0; text-align: left; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 1.5px;
  color: var(--brand); background: var(--bg-blue);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 16px;
}
.section.deep .eyebrow { color: #ffd0b8; background: rgba(255, 255, 255, .12); }
.section-title { font-size: 34px; margin-bottom: 14px; }
.section-sub { color: var(--ink-2); font-size: 16px; }
.section.deep .section-sub { color: rgba(255, 255, 255, .82); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(900px 460px at 88% 8%, rgba(255, 122, 69, .16), transparent 60%),
    radial-gradient(1000px 520px at 8% 0%, rgba(22, 104, 220, .18), transparent 62%),
    linear-gradient(180deg, #f7fafd 0%, #ffffff 70%);
  padding: 76px 0 92px;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(22, 104, 220, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22, 104, 220, .05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(70% 60% at 50% 20%, #000 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(70% 60% at 50% 20%, #000 20%, transparent 100%);
  pointer-events: none;
}
.hero-inner {
  position: relative; display: grid; grid-template-columns: 1.05fr .95fr;
  gap: 56px; align-items: center;
}
.hero h1 { font-size: 44px; line-height: 1.22; margin-bottom: 20px; }
.hero h1 em {
  font-style: normal;
  background: linear-gradient(120deg, var(--brand) 0%, var(--accent) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-desc { font-size: 17px; color: var(--ink-2); margin-bottom: 28px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 28px; }
.hero-tags { display: flex; gap: 10px; flex-wrap: wrap; }
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: #fff; border: 1px solid var(--line); border-radius: 999px;
  padding: 7px 14px; font-size: 13.5px; color: var(--ink-2); box-shadow: var(--shadow-sm);
}
.tag svg { width: 14px; height: 14px; color: var(--brand); }

/* ---------- 数据条 ---------- */
.stats { padding: 40px 0 8px; }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); overflow: hidden;
}
.stat { padding: 28px 20px; text-align: center; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat b { display: block; font-size: 34px; color: var(--brand-dark); line-height: 1.2; }
.stat b i { font-style: normal; font-size: 18px; }
.stat span { font-size: 13.5px; color: var(--ink-3); }

/* ---------- 产品卡 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.product-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 32px 28px; position: relative; overflow: hidden;
  transition: .28s; display: flex; flex-direction: column;
}
.product-card::after {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 4px;
  background: var(--card-color, var(--brand)); transform: scaleX(0);
  transform-origin: left; transition: .3s;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.product-card:hover::after { transform: scaleX(1); }
.pc-icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  margin-bottom: 18px; color: #fff;
  background: var(--card-color, var(--brand));
  box-shadow: 0 8px 18px rgba(22, 104, 220, .22);
}
.pc-icon svg { width: 26px; height: 26px; }
.product-card h3 { font-size: 22px; margin-bottom: 6px; }
.pc-for { font-size: 13px; color: var(--card-color, var(--brand)); font-weight: 700; margin-bottom: 12px; }
.product-card p { color: var(--ink-2); font-size: 14.5px; margin-bottom: 18px; }
.pc-list { margin-bottom: 24px; flex: 1; }
.pc-list li {
  display: flex; gap: 9px; font-size: 14px; color: var(--ink-2);
  padding: 5px 0; align-items: flex-start;
}
.pc-list li::before {
  content: ""; flex: 0 0 auto; width: 16px; height: 16px; margin-top: 5px;
  border-radius: 50%;
  background: var(--card-color, var(--brand)) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='white' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'><path d='M3.5 8.5l3 3 6-6.5'/></svg>") center/12px no-repeat;
}

/* ---------- 功能格 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feature-grid.four { grid-template-columns: repeat(4, 1fr); }
.feature {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; transition: .25s;
}
.feature:hover { border-color: #c9dcff; box-shadow: var(--shadow); transform: translateY(-3px); }
.feature .f-ico {
  width: 44px; height: 44px; border-radius: 12px; background: var(--bg-blue);
  display: grid; place-items: center; margin-bottom: 16px; color: var(--brand);
}
.feature .f-ico svg { width: 22px; height: 22px; }
.feature h4 { font-size: 17px; margin-bottom: 8px; }
.feature p { font-size: 14px; color: var(--ink-2); }
.section.deep .feature {
  background: rgba(255, 255, 255, .07); border-color: rgba(255, 255, 255, .14);
}
.section.deep .feature .f-ico { background: rgba(255, 255, 255, .14); color: #fff; }
.section.deep .feature p { color: rgba(255, 255, 255, .8); }

/* ---------- 痛点 ---------- */
.pain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.pain {
  background: #fff; border-radius: var(--radius); padding: 26px;
  border: 1px solid var(--line); border-left: 4px solid var(--accent);
}
.pain h4 { font-size: 16.5px; margin-bottom: 8px; }
.pain p { font-size: 14px; color: var(--ink-2); }
.pain .fix { margin-top: 12px; font-size: 13.5px; color: var(--brand); font-weight: 600; }
.pain .fix::before { content: "→ "; }

/* ---------- 对比表 ---------- */
.table-wrap { overflow-x: auto; background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--line); box-shadow: var(--shadow-sm); }
table.compare { width: 100%; border-collapse: collapse; min-width: 720px; font-size: 14.5px; }
table.compare th, table.compare td { padding: 16px 20px; text-align: left; border-bottom: 1px solid var(--line); }
table.compare thead th { background: var(--bg-blue); font-size: 15px; color: var(--brand-deep); }
table.compare thead th:first-child { border-radius: var(--radius-lg) 0 0 0; }
table.compare thead th:last-child { border-radius: 0 var(--radius-lg) 0 0; }
table.compare tbody th { font-weight: 600; color: var(--ink); width: 190px; background: #fcfdff; }
table.compare td { color: var(--ink-2); }
table.compare tr:last-child th, table.compare tr:last-child td { border-bottom: 0; }
.yes { color: #129a5b; font-weight: 700; }
.no { color: #b6c4d4; }

/* ---------- 案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
  background: #fff; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--line); transition: .25s; display: flex; flex-direction: column;
}
.case-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.case-top {
  padding: 26px 26px 20px; background: linear-gradient(135deg, var(--bg-blue), #fff);
  border-bottom: 1px solid var(--line);
}
.case-ind { font-size: 12.5px; font-weight: 700; color: var(--brand); letter-spacing: .5px; }
.case-card h4 { font-size: 18px; margin: 8px 0 6px; }
.case-scale { font-size: 13px; color: var(--ink-3); }
.case-body { padding: 20px 26px 22px; flex: 1; }
.case-body p { font-size: 14px; color: var(--ink-2); margin-bottom: 16px; }
.kpi { display: flex; gap: 20px; flex-wrap: wrap; }
.kpi div b { display: block; font-size: 22px; color: var(--accent-dark); line-height: 1.2; }
.kpi div span { font-size: 12.5px; color: var(--ink-3); }
.case-quote {
  padding: 16px 26px 24px; font-size: 13.5px; color: var(--ink-3);
  border-top: 1px dashed var(--line); font-style: italic;
}

/* ---------- 服务流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; position: relative; }
.step { text-align: center; position: relative; }
.step-num {
  width: 46px; height: 46px; border-radius: 50%; margin: 0 auto 14px;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark)); color: #fff;
  display: grid; place-items: center; font-weight: 700; font-size: 17px;
  box-shadow: 0 6px 16px rgba(22, 104, 220, .3);
}
.step h4 { font-size: 16px; margin-bottom: 6px; }
.step p { font-size: 13.5px; color: var(--ink-2); }
.step:not(:last-child)::after {
  content: ""; position: absolute; top: 23px; left: 58%; width: 84%;
  height: 2px; background: repeating-linear-gradient(90deg, #c9dcff 0 6px, transparent 6px 12px);
}

/* ---------- 优势 ---------- */
.adv-item { display: flex; gap: 18px; padding: 22px 0; border-bottom: 1px solid rgba(255,255,255,.12); }
.adv-item:last-child { border-bottom: 0; }
.adv-ico {
  flex: 0 0 auto; width: 46px; height: 46px; border-radius: 12px;
  background: rgba(255, 255, 255, .12); color: #fff; display: grid; place-items: center;
}
.adv-ico svg { width: 22px; height: 22px; }
.adv-item h4 { font-size: 17px; margin-bottom: 4px; }
.adv-item p { font-size: 14px; color: rgba(255, 255, 255, .78); }
.adv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 56px; }

/* ---------- CTA 条 ---------- */
.cta-bar {
  background: linear-gradient(120deg, var(--accent) 0%, #ff9a6c 100%);
  border-radius: var(--radius-lg); padding: 40px 44px; color: #fff;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  flex-wrap: wrap; box-shadow: 0 18px 40px rgba(255, 122, 69, .28);
}
.cta-bar h3 { font-size: 26px; margin-bottom: 6px; }
.cta-bar p { opacity: .92; font-size: 15px; }

/* ---------- 联系 / 表单 ---------- */
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
.info-list li { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px dashed var(--line); }
.info-list li:last-child { border-bottom: 0; }
.info-ico {
  flex: 0 0 auto; width: 38px; height: 38px; border-radius: 10px;
  background: var(--bg-blue); color: var(--brand); display: grid; place-items: center;
}
.info-ico svg { width: 18px; height: 18px; }
.info-list b { display: block; font-size: 13px; color: var(--ink-3); font-weight: 500; }
.info-list strong { font-size: 16px; color: var(--ink); }

.form-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 32px; 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: 13.5px; color: var(--ink-2); margin-bottom: 7px; font-weight: 600; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid #d9e5f5; border-radius: 10px;
  font-family: inherit; font-size: 14.5px; color: var(--ink); background: #fbfcfe;
  transition: .2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--brand); background: #fff;
  box-shadow: 0 0 0 3px rgba(22, 104, 220, .12);
}
.field textarea { min-height: 92px; resize: vertical; }
.form-note { font-size: 12.5px; color: var(--ink-3); margin-top: 12px; }
.form-ok {
  display: none; margin-top: 14px; padding: 12px 16px; border-radius: 10px;
  background: #e9f9f0; color: #129a5b; font-size: 14px; border: 1px solid #bdeed2;
}
.form-ok.show { display: block; }

/* ---------- 线索卡（腾讯问卷入口） ---------- */
.lead-main { width: 100%; }
.lead-main[aria-disabled="true"] { opacity: .55; box-shadow: none; cursor: not-allowed; }
.lead-main[aria-disabled="true"]:hover { transform: none; box-shadow: none; }
.lead-alt { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 12px; }
.lead-wx { font-size: 13px; color: var(--ink-3); margin: 14px 0 0; text-align: center; }
.lead-wx strong { color: var(--ink-2); font-weight: 600; letter-spacing: .3px; }
.lead-list { list-style: none; margin: 20px 0 0; padding: 18px 20px; background: #f7faff; border: 1px dashed #d9e5f5; border-radius: 12px; }
.lead-list li { position: relative; padding-left: 20px; font-size: 14px; color: var(--ink-2); margin-bottom: 8px; }
.lead-list li:last-child { margin-bottom: 0; }
.lead-list li::before {
  content: ""; position: absolute; left: 4px; top: 7px; width: 6px; height: 6px;
  border-radius: 50%; background: var(--brand);
}
@media (max-width: 520px) { .lead-alt { grid-template-columns: 1fr; } }

/* ---------- 新闻资讯 ---------- */
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.post-card {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 24px; display: flex; flex-direction: column; gap: 12px; transition: .22s;
}
.post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #c9dcff; }
.post-meta { display: flex; gap: 10px; align-items: center; font-size: 12.5px; color: var(--ink-3); }
.post-cat { padding: 3px 10px; border-radius: 999px; background: var(--bg-blue); color: var(--brand); font-size: 12px; font-weight: 500; }
.post-card h4 { font-size: 17px; line-height: 1.5; }
.post-card h4 a { color: var(--ink); }
.post-card h4 a:hover { color: var(--brand); }
.post-card .post-sum { font-size: 14px; color: var(--ink-2); line-height: 1.7; }
.post-more { margin-top: auto; color: var(--brand); font-weight: 600; font-size: 14px; }
@media (max-width: 900px) { .post-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .post-grid { grid-template-columns: 1fr; } }

.article-wrap { max-width: 820px; margin: 0 auto; background: #fff; border: 1px solid var(--line);
  border-radius: 16px; padding: 40px 44px; box-shadow: var(--shadow); }
.article-head h1 { font-size: 26px; line-height: 1.5; margin: 12px 0 10px; }
.article-body { margin-top: 26px; border-top: 1px dashed var(--line); padding-top: 26px;
  font-size: 15.5px; color: var(--ink); line-height: 1.9; }
.article-body h2 { font-size: 20px; margin: 28px 0 12px; }
.article-body h3 { font-size: 17px; margin: 22px 0 10px; }
.article-body p { margin-bottom: 14px; }
.article-body li { margin: 6px 0 6px 22px; list-style: disc; }
.article-body img { max-width: 100%; border-radius: 10px; margin: 10px 0; }
.service-info { margin-top: 34px; padding: 18px 20px; border-radius: 12px;
  background: var(--bg-soft); border: 1px solid var(--line); font-size: 14.5px;
  color: var(--ink-2); line-height: 1.85; }
.service-info p { margin: 0 0 10px; }
.service-info p:last-child { margin-bottom: 0; }
.service-info strong { color: var(--ink); }
.service-info .service-line { margin-top: 12px; padding-top: 12px;
  border-top: 1px dashed var(--line); font-size: 14px; color: var(--ink); }
.service-info a { color: var(--brand); }
.article-body blockquote { border-left: 3px solid var(--brand); background: var(--bg-blue);
  padding: 12px 16px; border-radius: 0 10px 10px 0; margin: 14px 0; color: var(--ink-2); }
.article-body a { color: var(--brand); }
.article-body table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 14px; }
.article-body th, .article-body td { border: 1px solid var(--line); padding: 8px 12px; }
.article-back { display: inline-block; margin-top: 30px; }
@media (max-width: 640px) { .article-wrap { padding: 26px 20px; } }

/* ---------- 页脚 ---------- */
.footer { background: #08203c; color: rgba(255, 255, 255, .68); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; }
.footer h5 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer p { font-size: 13.5px; margin-bottom: 14px; }
.footer li { font-size: 13.5px; padding: 5px 0; }
.footer li a:hover { color: #fff; }
.footer .logo-text strong { color: #fff; }
.footer .logo-text span { color: rgba(255, 255, 255, .45); }
.footer-bottom {
  margin-top: 44px; padding: 20px 0; border-top: 1px solid rgba(255, 255, 255, .1);
  font-size: 12.5px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}

/* ---------- 软件界面 Mockup ---------- */
.mock {
  background: #fff; border-radius: 14px; border: 1px solid var(--line);
  box-shadow: var(--shadow-lg); overflow: hidden;
}
.mock-bar {
  display: flex; align-items: center; gap: 6px; padding: 10px 14px;
  background: #f2f6fc; border-bottom: 1px solid var(--line);
}
.mock-bar i { width: 10px; height: 10px; border-radius: 50%; background: #d7e2ef; }
.mock-bar i:first-child { background: #ff6b6b; }
.mock-bar i:nth-child(2) { background: #ffc44d; }
.mock-bar i:nth-child(3) { background: #4ecb7b; }
.mock-bar span {
  margin-left: auto; font-size: 11.5px; color: var(--ink-3);
  background: #fff; border-radius: 6px; padding: 3px 10px; border: 1px solid var(--line);
}
.mock-body { display: grid; grid-template-columns: 116px 1fr; min-height: 296px; }
.mock-side { background: #0f2c52; padding: 14px 10px; }
.mock-side .ms-title { color: rgba(255,255,255,.45); font-size: 10.5px; padding: 6px 8px; letter-spacing: 1px; }
.mock-side .ms-item {
  color: rgba(255, 255, 255, .75); font-size: 12px; padding: 7px 8px; border-radius: 7px;
  display: flex; align-items: center; gap: 7px;
}
.mock-side .ms-item.on { background: rgba(255, 255, 255, .12); color: #fff; font-weight: 600; }
.mock-side .ms-item i { width: 12px; height: 12px; border-radius: 3px; background: rgba(255,255,255,.28); }
.mock-main { padding: 16px; background: #f7fafd; }
.mock-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 12px; }
.mock-kpi { background: #fff; border: 1px solid var(--line); border-radius: 9px; padding: 10px 11px; }
.mock-kpi small { display: block; font-size: 10.5px; color: var(--ink-3); }
.mock-kpi b { font-size: 17px; color: var(--brand-dark); }
.mock-kpi b.up { color: #16a34a; }
.mock-chart {
  background: #fff; border: 1px solid var(--line); border-radius: 9px; padding: 12px;
  margin-bottom: 12px;
}
.mock-chart small { font-size: 10.5px; color: var(--ink-3); display: block; margin-bottom: 8px; }
.bars { display: flex; align-items: flex-end; gap: 7px; height: 66px; }
.bars i {
  flex: 1; border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, #6ba7ff, #1668dc);
}
.bars i:nth-child(2n) { background: linear-gradient(180deg, #ffd2bf, #ff8a5c); }
.mock-table { background: #fff; border: 1px solid var(--line); border-radius: 9px; overflow: hidden; }
.mock-tr { display: grid; grid-template-columns: 1.4fr 1fr .8fr .8fr; gap: 8px; padding: 8px 11px; font-size: 11px; }
.mock-tr.head { background: #eef4ff; color: var(--ink-2); font-weight: 600; }
.mock-tr:not(.head) { border-top: 1px solid var(--line); color: var(--ink-2); }
.mock-tr .pill { color: #129a5b; font-weight: 600; }

.float-badge {
  position: absolute; background: #fff; border: 1px solid var(--line);
  border-radius: 12px; padding: 10px 14px; box-shadow: var(--shadow); font-size: 12.5px;
  display: flex; align-items: center; gap: 8px;
}
.float-badge b { font-size: 15px; color: var(--brand-dark); }
.hero-visual { position: relative; }
.hero-visual .mock { transform: perspective(1200px) rotateY(-6deg) rotateX(2deg); }
.fb-1 { top: -18px; right: -14px; }
.fb-2 { bottom: -22px; left: -18px; }

/* ---------- 面包屑 ---------- */
.crumb { font-size: 13px; color: var(--ink-3); padding: 14px 0; }
.crumb a:hover { color: var(--brand); }

/* ---------- 分页头 ---------- */
.page-head {
  background: linear-gradient(135deg, var(--brand-deep) 0%, #0d3f8a 55%, var(--brand) 100%);
  color: #fff; padding: 58px 0 66px; position: relative; overflow: hidden;
}
.page-head::after {
  content: ""; position: absolute; right: -80px; top: -80px; width: 340px; height: 340px;
  border-radius: 50%; background: rgba(255, 255, 255, .07);
}
.page-head h1 { font-size: 36px; margin-bottom: 12px; }
.page-head p { color: rgba(255, 255, 255, .82); font-size: 16px; max-width: 680px; }
.page-head .crumb { color: rgba(255, 255, 255, .6); padding-top: 0; margin-bottom: 14px; }
.page-head .crumb a:hover { color: #fff; }

/* ---------- 产品页专项 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split.reverse .split-text { order: 2; }
.check-list li {
  display: flex; gap: 10px; padding: 9px 0; font-size: 15px; color: var(--ink-2);
  border-bottom: 1px dashed var(--line);
}
.check-list li:last-child { border-bottom: 0; }
.check-list li::before {
  content: ""; flex: 0 0 auto; width: 18px; height: 18px; margin-top: 4px; border-radius: 50%;
  background: var(--brand) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='white' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'><path d='M3.5 8.5l3 3 6-6.5'/></svg>") center/12px no-repeat;
}
.price-note {
  background: var(--bg-blue); border: 1px dashed #b9d0f5; border-radius: var(--radius);
  padding: 18px 22px; font-size: 14px; color: var(--ink-2); margin-top: 22px;
}
.price-note b { color: var(--brand-dark); }

/* ---------- FAQ ---------- */
.faq-item { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; margin-bottom: 14px; overflow: hidden; }
.faq-q { padding: 18px 22px; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; gap: 16px; align-items: center; font-size: 15.5px; }
.faq-q span { transition: .25s; color: var(--brand); font-size: 20px; line-height: 1; }
.faq-item.open .faq-q span { transform: rotate(45deg); }
.faq-a { display: none; padding: 0 22px 20px; color: var(--ink-2); font-size: 14.5px; }
.faq-item.open .faq-a { display: block; }
.faq-static .faq-q { cursor: default; font-size: 16.5px; color: var(--ink); }
.faq-static .faq-q span { display: none; }
.faq-static .faq-a { display: block; font-size: 15px; line-height: 1.9; color: var(--ink-2); }
.faq-group-title { font-size: 20px; font-weight: 600; color: var(--ink); margin: 38px 0 18px;
  padding-left: 12px; border-left: 4px solid var(--brand); }
.faq-group-title:first-child { margin-top: 0; }

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

/* ---------- 悬浮客服 ---------- */
.float-contact {
  position: fixed; right: 18px; bottom: 22px; z-index: 70;
  display: flex; flex-direction: column; gap: 10px;
}
.fc-btn {
  width: 52px; height: 52px; border-radius: 50%; border: 0; cursor: pointer;
  background: #fff; box-shadow: var(--shadow); display: grid; place-items: center;
  color: var(--brand); position: relative; transition: .2s;
}
.fc-btn:hover { transform: translateY(-3px); }
.fc-btn svg { width: 22px; height: 22px; }
.fc-btn.qr::after {
  content: attr(data-tip); position: absolute; right: 62px; top: 50%; transform: translateY(-50%);
  background: #fff; color: var(--ink); font-size: 13px; padding: 10px 14px; border-radius: 10px;
  white-space: nowrap; box-shadow: var(--shadow); opacity: 0; pointer-events: none; transition: .2s;
  border: 1px solid var(--line);
}
.fc-btn.qr:hover::after { opacity: 1; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .hero h1 { font-size: 36px; }
  .product-grid, .case-grid, .feature-grid.four { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); gap: 26px 16px; }
  .step:not(:last-child)::after { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .adv-grid { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .nav-links {
    display: none; position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: #fff; flex-direction: column; padding: 12px 18px 20px;
    box-shadow: var(--shadow); border-top: 1px solid var(--line); gap: 2px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 8px; font-size: 15px; }
  .nav-links a.active::after { display: none; }
  .nav-toggle { display: block; }
  .nav-inner { justify-content: space-between; gap: 12px; }
  .nav-cta .btn { display: none; }
  .nav-cta { margin-left: auto; }
  .section { padding: 64px 0; }
  .section-title { font-size: 27px; }
  .hero { padding: 52px 0 64px; }
  .hero h1 { font-size: 30px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--line); }
  .product-grid, .case-grid, .feature-grid, .feature-grid.four, .pain-grid { grid-template-columns: 1fr; }
  .split, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .split.reverse .split-text { order: 0; }
  .form-row { grid-template-columns: 1fr; }
  .cta-bar { padding: 30px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-visual .mock { transform: none; }
  .float-badge { display: none; }
  .page-head h1 { font-size: 28px; }
  .mock-body { grid-template-columns: 1fr; }
  .mock-side { display: none; }
}

@media (max-width: 560px) {
  .container { padding: 0 16px; }
  .hero-actions .btn { width: 100%; }
  .stat b { font-size: 27px; }
  .steps { grid-template-columns: 1fr; }
}