/* ============================================================
   顺通财税官网 · 全站样式
   色彩体系：主色蓝 #185FA5 / 辅助青 #0F6E56 / 强调橙 #BA7517
   ============================================================ */
:root {
  --blue-50: #E6F1FB;
  --blue-600: #185FA5;
  --blue-800: #0C447C;
  --teal-50: #E1F5EE;
  --teal-600: #0F6E56;
  --teal-800: #085041;
  --purple-50: #EEEDFE;
  --purple-600: #534AB7;
  --amber-600: #854F0B;
  --amber-50: #FAEEDA;
  --text-1: #1a2233;
  --text-2: #4b5568;
  --text-3: #8a93a6;
  --line: #e4e8f0;
  --bg: #ffffff;
  --bg-soft: #f5f8fc;
  --radius: 14px;
  --shadow: 0 4px 18px rgba(24, 95, 165, 0.08);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-1);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* ---------- 顶部通栏 ---------- */
.topbar { background: var(--blue-800); color: #cfe2f5; font-size: 13px; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; height: 34px; }
.topbar a { color: #fff; }
.topbar a:hover { text-decoration: underline; }

/* ---------- 导航 ---------- */
.header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.96); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--blue-600); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 18px; letter-spacing: 1px;
}
.logo-text { font-size: 20px; font-weight: 700; color: var(--blue-800); }
.logo-text small { display: block; font-size: 11px; font-weight: 400; color: var(--text-3); letter-spacing: 2px; }
.nav-links { display: flex; gap: 34px; font-size: 15.5px; }
.nav-links a { color: var(--text-2); padding: 6px 0; border-bottom: 2px solid transparent; transition: all .2s; }
.nav-links a:hover, .nav-links a.active { color: var(--blue-600); border-bottom-color: var(--blue-600); }
.nav-cta { background: var(--blue-600); color: #fff; padding: 9px 22px; border-radius: 8px; font-size: 15px; transition: background .2s; }
.nav-cta:hover { background: var(--blue-800); }
.menu-btn { display: none; background: none; border: none; font-size: 24px; color: var(--blue-800); cursor: pointer; }

/* ---------- 首屏横幅 ---------- */
.hero { background: var(--bg-soft); padding: 88px 0 96px; position: relative; overflow: hidden; }
.hero::after {
  content: ""; position: absolute; right: -120px; top: -120px;
  width: 420px; height: 420px; border-radius: 50%;
  background: var(--blue-50); opacity: .8;
}
.hero .container { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero-tag { display: inline-block; background: var(--blue-50); color: var(--blue-600); font-size: 13.5px; padding: 5px 14px; border-radius: 999px; margin-bottom: 20px; }
.hero h1 { font-size: 40px; line-height: 1.3; color: var(--text-1); }
.hero h1 span { color: var(--blue-600); }
.hero p.lead { margin: 20px 0 34px; color: var(--text-2); font-size: 17px; max-width: 480px; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 30px; border-radius: 10px; font-size: 16px; transition: all .2s; }
.btn-primary { background: var(--blue-600); color: #fff; }
.btn-primary:hover { background: var(--blue-800); transform: translateY(-2px); }
.btn-ghost { border: 1.5px solid var(--blue-600); color: var(--blue-600); }
.btn-ghost:hover { background: var(--blue-50); }

/* 首屏右侧产品卡片 */
.hero-cards { display: grid; gap: 18px; }
.hero-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 24px; display: flex; align-items: center; gap: 18px;
  box-shadow: var(--shadow); transition: transform .2s, box-shadow .2s;
}
.hero-card:hover { transform: translateY(-4px); box-shadow: 0 10px 26px rgba(24,95,165,.14); }
.hero-card .icon { width: 52px; height: 52px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 26px; flex-shrink: 0; }
.hero-card.jxc .icon { background: var(--teal-50); }
.hero-card.qft .icon { background: var(--purple-50); }
.hero-card h3 { font-size: 17px; }
.hero-card p { font-size: 13.5px; color: var(--text-3); }
.hero-card .go { margin-left: auto; color: var(--blue-600); font-size: 13px; white-space: nowrap; }

/* ---------- 区块通用 ---------- */
.section { padding: 84px 0; }
.section.soft { background: var(--bg-soft); }
.sec-head { text-align: center; max-width: 640px; margin: 0 auto 52px; }
.sec-head .kicker { color: var(--blue-600); font-size: 14px; letter-spacing: 3px; font-weight: 600; }
.sec-head h2 { font-size: 30px; margin: 10px 0 12px; }
.sec-head p { color: var(--text-2); font-size: 15.5px; }

/* 产品轮播 */
.carousel { position: relative; overflow: hidden; border-radius: 18px; margin-bottom: 40px; box-shadow: var(--shadow); }
.slides { display: flex; transition: transform .5s ease; }
.slide {
  min-width: 100%; height: 340px; position: relative;
  display: flex; align-items: flex-end; background: var(--blue-600);
}
.slide img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.slide-info {
  position: relative; z-index: 2; color: #fff;
  padding: 26px 34px; width: 100%;
  background: rgba(12, 30, 55, 0.55);
}
.slide-info h3 { font-size: 22px; margin-bottom: 4px; }
.slide-info p { font-size: 14px; color: #d9e6f5; margin-bottom: 10px; }
.slide-info a {
  display: inline-block; font-size: 13.5px; font-weight: 600;
  background: #fff; color: var(--blue-800);
  padding: 6px 18px; border-radius: 999px;
}
.slide-info a:hover { background: var(--blue-50); }
.carousel-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 42px; height: 42px; border-radius: 50%;
  background: rgba(255,255,255,.85); color: var(--blue-800);
  border: none; font-size: 22px; cursor: pointer; z-index: 3;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s;
}
.carousel-btn:hover { background: #fff; }
.carousel-btn.prev { left: 14px; }
.carousel-btn.next { right: 14px; }
.carousel-dots { position: absolute; bottom: 12px; right: 20px; display: flex; gap: 8px; z-index: 3; }
.carousel-dots button {
  width: 9px; height: 9px; border-radius: 50%; border: none;
  background: rgba(255,255,255,.5); cursor: pointer; padding: 0;
}
.carousel-dots button.on { background: #fff; }

/* 产品入口双卡片 */
.product-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.product-card {
  border-radius: 18px; padding: 38px 34px; border: 1px solid var(--line);
  background: #fff; transition: transform .2s, box-shadow .2s; position: relative; overflow: hidden;
}
.product-card:hover { transform: translateY(-6px); box-shadow: 0 14px 34px rgba(24,95,165,.12); }
.product-card .tag { display: inline-block; font-size: 12.5px; padding: 4px 12px; border-radius: 999px; margin-bottom: 18px; }
.product-card.jxc { border-top: 4px solid var(--teal-600); }
.product-card.jxc .tag { background: var(--teal-50); color: var(--teal-600); }
.product-card.qft { border-top: 4px solid var(--purple-600); }
.product-card.qft .tag { background: var(--purple-50); color: var(--purple-600); }
.product-card h3 { font-size: 22px; margin-bottom: 6px; }
.product-card .sub { color: var(--text-3); font-size: 13px; margin-bottom: 16px; }
.product-card p.desc { color: var(--text-2); font-size: 14.5px; margin-bottom: 20px; min-height: 72px; }
.feature-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; }
.feature-chips span { font-size: 12.5px; color: var(--text-2); background: var(--bg-soft); border: 1px solid var(--line); padding: 4px 12px; border-radius: 999px; }
.product-card .enter {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--blue-600); font-weight: 600; font-size: 15px;
}
.product-card .enter:hover { text-decoration: underline; }

/* 核心优势 */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.adv { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px; transition: box-shadow .2s; }
.adv:hover { box-shadow: var(--shadow); }
.adv .num { font-size: 30px; font-weight: 700; color: var(--blue-600); }
.adv h3 { font-size: 17px; margin: 10px 0 8px; }
.adv p { font-size: 13.5px; color: var(--text-2); }

/* 解决方案 */
.sol-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.sol { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: #fff; }
.sol .head { padding: 22px 24px; color: #fff; font-size: 18px; font-weight: 600; }
.sol:nth-child(1) .head { background: var(--teal-600); }
.sol:nth-child(2) .head { background: var(--blue-600); }
.sol:nth-child(3) .head { background: var(--purple-600); }
.sol .body { padding: 22px 24px; }
.sol .body li { font-size: 14px; color: var(--text-2); padding: 7px 0 7px 18px; position: relative; }
.sol .body li::before { content: ""; position: absolute; left: 0; top: 15px; width: 7px; height: 7px; border-radius: 50%; background: var(--blue-600); }

/* 产品详情页 */
.page-hero { background: var(--bg-soft); padding: 64px 0; border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: 32px; margin-bottom: 12px; }
.page-hero p { color: var(--text-2); max-width: 640px; }
.crumbs { font-size: 13px; color: var(--text-3); margin-bottom: 14px; }
.crumbs a { color: var(--text-2); }
.crumbs a:hover { color: var(--blue-600); }
.feat-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 46px; }
.feat { display: flex; gap: 16px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.feat .icon { width: 46px; height: 46px; border-radius: 10px; background: var(--blue-50); display: flex; align-items: center; justify-content: center; font-size: 22px; flex-shrink: 0; }
.feat h3 { font-size: 16.5px; margin-bottom: 6px; }
.feat p { font-size: 13.5px; color: var(--text-2); }
.sys-portal { margin-top: 56px; background: var(--blue-800); border-radius: 18px; color: #fff; padding: 40px 44px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.sys-portal h3 { font-size: 21px; margin-bottom: 6px; }
.sys-portal p { color: #cfe2f5; font-size: 14px; }
.sys-portal .btn { background: #fff; color: var(--blue-800); }

/* 流程步骤 */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 22px; position: relative; }
.step::before {
  counter-increment: step; content: "0" counter(step);
  font-size: 15px; font-weight: 700; color: var(--blue-600);
  background: var(--blue-50); width: 44px; height: 44px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
}
.step h3 { font-size: 16px; margin-bottom: 8px; }
.step p { font-size: 13.5px; color: var(--text-2); }

/* 联系页 */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.contact-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.contact-card h3 { font-size: 18px; margin-bottom: 18px; color: var(--blue-800); }
.contact-card li { display: flex; gap: 12px; padding: 9px 0; font-size: 14.5px; color: var(--text-2); }
.contact-card .k { color: var(--text-3); width: 76px; flex-shrink: 0; }
.contact-card .k::after { content: "："; }

/* CTA 横条 */
.cta-strip { background: var(--blue-600); color: #fff; padding: 56px 0; text-align: center; }
.cta-strip h2 { font-size: 26px; margin-bottom: 10px; }
.cta-strip p { color: #d6e7f8; margin-bottom: 26px; }
.cta-strip .btn { background: #fff; color: var(--blue-800); font-weight: 600; }

/* ---------- 页脚 ---------- */
.footer { background: #10192b; color: #9aa7bd; padding: 56px 0 0; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 40px; }
.footer h4 { color: #fff; font-size: 15.5px; margin-bottom: 16px; }
.footer li { padding: 5px 0; }
.footer a:hover { color: #fff; }
.footer .logo-text { color: #fff; }
.footer .logo-text small { color: #7c8aa3; }
.footer-brand p { margin-top: 14px; font-size: 13.5px; line-height: 1.8; }
.footer-bottom { border-top: 1px solid #22304a; padding: 18px 0; font-size: 12.5px; text-align: center; color: #6d7a92; }
.footer-bottom a { color: #9aa7bd; }
.footer-bottom a:hover { color: #fff; }

/* ---------- 悬浮咨询条 ---------- */
.fab-wrap { position: fixed; right: 18px; bottom: 26px; display: flex; flex-direction: column; gap: 12px; z-index: 90; }
.fab-btn {
  width: 52px; height: 52px; border-radius: 50%; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; text-decoration: none;
  box-shadow: 0 6px 18px rgba(24, 95, 165, .3);
}
.fab-tel { background: var(--blue-600); color: #fff; }
.fab-tel:hover { background: var(--blue-800); }
.fab-wx { background: #07C160; color: #fff; }
.fab-wx:hover { background: #06AD56; }
.wx-pop {
  position: fixed; right: 84px; bottom: 26px; width: 240px; z-index: 91; display: none;
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  box-shadow: 0 12px 32px rgba(16, 25, 43, .18); padding: 18px; text-align: center;
}
.wx-pop.show { display: block; }
.wx-close { position: absolute; top: 4px; right: 10px; border: none; background: none; font-size: 20px; color: var(--text-3); cursor: pointer; }
.wx-qr {
  width: 190px; height: 190px; margin: 0 auto 10px; border-radius: 10px;
  background: var(--bg-soft); border: 1px dashed var(--line);
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.wx-qr img { width: 100%; height: 100%; object-fit: cover; }
.wx-qr .wx-ph { display: none; flex-direction: column; gap: 4px; padding: 10px; color: var(--text-3); font-size: 13px; }
.wx-qr.nopic .wx-ph { display: flex; }
.wx-pop p { font-size: 13.5px; color: var(--text-2); margin: 0; }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero .container, .product-grid, .contact-grid, .feat-list { grid-template-columns: 1fr; }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .sol-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 30px; }
}
@media (max-width: 640px) {
  .nav-links, .topbar .container span.hide-m { display: none; }
  .menu-btn { display: block; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line); padding: 16px 24px; gap: 14px;
    box-shadow: var(--shadow);
  }
  .adv-grid, .steps, .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .hero { padding: 56px 0 64px; }
  .slide { height: 230px; }
  .slide-info { padding: 16px 18px; }
  .slide-info h3 { font-size: 17px; }
  .carousel-btn { display: none; }
  .fab-wrap { right: 14px; bottom: 18px; }
  .wx-pop { right: 14px; bottom: 86px; }
}

/* ---------- FAQ 问答区 ---------- */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq { border: 1px solid var(--line); border-radius: 12px; background: #fff; margin-bottom: 14px; overflow: hidden; }
.faq summary {
  list-style: none; cursor: pointer; padding: 16px 20px; font-weight: 600; font-size: 15.5px;
  color: var(--text-1); display: flex; align-items: center; gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "Q"; flex: 0 0 26px; width: 26px; height: 26px; border-radius: 8px;
  background: var(--blue-600); color: #fff; font-size: 14px; display: flex;
  align-items: center; justify-content: center;
}
.faq[open] summary { border-bottom: 1px solid var(--line); }
.faq .a { padding: 14px 20px 16px 58px; color: var(--text-2); font-size: 14.5px; line-height: 1.9; }
.faq .a::before { content: "A"; font-weight: 700; color: var(--blue-600); margin-right: 8px; }
.faq-note { text-align: center; color: var(--text-3); font-size: 13.5px; margin-top: 18px; }

/* ---------- 事实数据条 ---------- */
.facts-band {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 22px 26px;
}
.facts-band .fb { text-align: center; }
.facts-band .fb b { display: block; font-size: 22px; color: var(--blue-600); margin-bottom: 4px; }
.facts-band .fb span { font-size: 13px; color: var(--text-3); }
@media (max-width: 640px) { .facts-band { grid-template-columns: repeat(2, 1fr); } .faq .a { padding-left: 20px; } }