/* =========================================================
   四川穗才信息技术服务有限公司 — 企业官网样式
   设计风格：简约大气 / 响应式 / 适配微信服务号 webview
   ========================================================= */

:root {
  --c-bg: #ffffff;
  --c-bg-soft: #f5f8fd;
  --c-bg-deep: #0d1f3c;
  --c-primary: #14346b;      /* 深海军蓝 */
  --c-primary-600: #1b4790;
  --c-accent: #2f6fed;       /* 亮蓝 */
  --c-gold: #c9a227;         /* 财务金 */
  --c-text: #1f2937;
  --c-text-muted: #5b6b80;
  --c-border: #e6ecf3;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 12px 34px rgba(20, 52, 107, 0.10);
  --shadow-sm: 0 6px 18px rgba(20, 52, 107, 0.08);
  --maxw: 1180px;
  --header-h: 66px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
    "Helvetica Neue", Helvetica, Arial, "Segoe UI", sans-serif;
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: all .28s var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--c-accent), var(--c-primary-600));
  color: #fff;
  box-shadow: 0 10px 24px rgba(47, 111, 237, .28);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(47, 111, 237, .36); }
.btn-ghost {
  background: rgba(255, 255, 255, .12);
  color: #fff;
  border-color: rgba(255, 255, 255, .55);
  backdrop-filter: blur(4px);
}
.btn-ghost:hover { background: rgba(255, 255, 255, .22); }
.btn-outline {
  background: #fff;
  color: var(--c-primary);
  border-color: var(--c-border);
}
.btn-outline:hover { border-color: var(--c-accent); color: var(--c-accent); }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 1000;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: all .3s var(--ease);
}
.site-header.scrolled {
  border-bottom-color: var(--c-border);
  box-shadow: 0 6px 20px rgba(20, 52, 107, .06);
}
.nav {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 0; }
.brand-logo {
  height: 40px;
  width: auto;
  object-fit: contain;
  border-radius: 8px;
  flex-shrink: 0;
}

.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  position: relative;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--c-text);
  border-radius: 8px;
  transition: color .2s;
}
.nav-links a:hover { color: var(--c-accent); }
.nav-links a.active { color: var(--c-primary); font-weight: 600; }
.nav-links a.active::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 2px;
  height: 2.5px; border-radius: 2px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-primary));
}
.nav-cta { margin-left: 10px; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border: none; background: transparent; cursor: pointer;
  flex-direction: column; justify-content: center; align-items: center; gap: 5px;
}
.nav-toggle span {
  width: 22px; height: 2px; background: var(--c-primary); border-radius: 2px;
  transition: transform .3s var(--ease), opacity .2s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端菜单 */
.mobile-menu {
  position: fixed;
  top: var(--header-h); left: 0; right: 0;
  background: #fff;
  border-bottom: 1px solid var(--c-border);
  box-shadow: 0 14px 30px rgba(20, 52, 107, .08);
  transform: translateY(-12px);
  opacity: 0; pointer-events: none;
  transition: all .28s var(--ease);
  z-index: 999;
  padding: 8px 16px 18px;
}
.mobile-menu.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
.mobile-menu a {
  display: block; padding: 14px 8px; font-size: 16px; font-weight: 500;
  border-bottom: 1px solid var(--c-bg-soft); color: var(--c-text);
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a.active { color: var(--c-accent); }
.mobile-menu .btn { width: 100%; margin-top: 14px; }

/* ---------- 通用区块 ---------- */
.section { padding: 84px 0; }
.section-soft { background: var(--c-bg-soft); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 3px;
  color: var(--c-accent); text-transform: uppercase; margin-bottom: 14px;
}
.section-head h2 {
  font-size: clamp(26px, 4vw, 38px); font-weight: 800; color: var(--c-primary);
  letter-spacing: .5px; line-height: 1.3;
}
.section-head p { margin-top: 16px; color: var(--c-text-muted); font-size: 16px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--header-h) + 76px) 0 96px;
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(47, 111, 237, .35), transparent 60%),
    radial-gradient(900px 460px at 5% 10%, rgba(20, 52, 107, .55), transparent 55%),
    linear-gradient(160deg, #0a1830 0%, #102a52 55%, #14346b 100%);
  color: #fff; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  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: 46px 46px;
  mask-image: radial-gradient(700px 500px at 70% 20%, #000, transparent 75%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 2; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; border-radius: 999px;
  background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .2);
  font-size: 13px; letter-spacing: 1px; margin-bottom: 24px;
}
.hero-tag .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--c-gold); box-shadow: 0 0 10px var(--c-gold); }
.hero h1 {
  font-size: clamp(30px, 6vw, 54px); font-weight: 800; line-height: 1.22;
  letter-spacing: .5px; max-width: 820px;
}
.hero h1 .hl { color: #7fb0ff; }
.hero-sub { margin: 22px 0 34px; font-size: clamp(15px, 2.4vw, 19px); color: rgba(255, 255, 255, .82); max-width: 640px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-stats {
  display: flex; flex-wrap: wrap; gap: 38px; margin-top: 56px;
  padding-top: 34px; border-top: 1px solid rgba(255, 255, 255, .14);
}
.hero-stats .item .num { font-size: 30px; font-weight: 800; color: #fff; }
.hero-stats .item .num span { color: var(--c-gold); }
.hero-stats .item .label { font-size: 13px; color: rgba(255, 255, 255, .7); margin-top: 2px; }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 26px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius);
  padding: 32px 28px; transition: all .3s var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.service-card .icon {
  width: 56px; height: 56px; border-radius: 14px; margin-bottom: 20px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(47, 111, 237, .12), rgba(20, 52, 107, .12));
  color: var(--c-primary);
}
.service-card .icon svg { width: 28px; height: 28px; }
.service-card h3 { font-size: 19px; color: var(--c-primary); margin-bottom: 10px; }
.service-card p { color: var(--c-text-muted); font-size: 15px; }
.service-card .more { display: inline-block; margin-top: 16px; font-weight: 600; color: var(--c-accent); font-size: 14px; }

/* 特性/优势 */
.feature { display: flex; gap: 16px; align-items: flex-start; }
.feature .tick {
  flex-shrink: 0; width: 30px; height: 30px; border-radius: 50%;
  background: rgba(47, 111, 237, .12); color: var(--c-accent);
  display: flex; align-items: center; justify-content: center; margin-top: 3px;
}
.feature h4 { font-size: 17px; color: var(--c-primary); margin-bottom: 6px; }
.feature p { color: var(--c-text-muted); font-size: 14.5px; }

/* 流程步骤 */
.steps { counter-reset: step; }
.step {
  position: relative; padding: 28px 26px 28px 78px;
  background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius);
}
.step::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 22px; top: 26px;
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--c-accent), var(--c-primary));
  color: #fff; font-weight: 700; font-size: 17px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 18px rgba(47, 111, 237, .3);
}
.step h4 { color: var(--c-primary); font-size: 17px; margin-bottom: 6px; }
.step p { color: var(--c-text-muted); font-size: 14.5px; }

/* CTA 横幅 */
.cta-band {
  background:
    radial-gradient(600px 300px at 90% 0%, rgba(47, 111, 237, .4), transparent 60%),
    linear-gradient(135deg, #102a52, #14346b);
  color: #fff; border-radius: 24px; padding: 54px 48px;
  display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap;
  box-shadow: var(--shadow);
}
.cta-band h2 { font-size: clamp(22px, 3vw, 30px); font-weight: 800; }
.cta-band p { color: rgba(255, 255, 255, .82); margin-top: 8px; }

/* ---------- 关于我们 ---------- */
.about-hero { padding: calc(var(--header-h) + 60px) 0 30px; }
.about-hero h1 { font-size: clamp(28px, 5vw, 44px); color: var(--c-primary); font-weight: 800; }
.about-hero p { margin-top: 16px; color: var(--c-text-muted); max-width: 720px; }
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.about-text h3 { color: var(--c-primary); font-size: 22px; margin: 26px 0 12px; }
.about-text p { color: var(--c-text-muted); }
.about-visual {
  border-radius: var(--radius); padding: 36px; min-height: 320px;
  background:
    radial-gradient(500px 300px at 100% 0%, rgba(47, 111, 237, .18), transparent 60%),
    linear-gradient(160deg, #f5f8fd, #e9f0fb);
  border: 1px solid var(--c-border);
  display: flex; flex-direction: column; justify-content: center; gap: 18px;
}
.metric-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.metric { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius-sm); padding: 18px; }
.metric .num { font-size: 28px; font-weight: 800; color: var(--c-primary); }
.metric .num span { color: var(--c-accent); }
.metric .lbl { font-size: 13px; color: var(--c-text-muted); }

.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.value-card { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius); padding: 28px 24px; }
.value-card .ic { width: 46px; height: 46px; border-radius: 12px; background: rgba(201, 162, 39, .15); color: var(--c-gold); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.value-card h4 { color: var(--c-primary); margin-bottom: 8px; }
.value-card p { color: var(--c-text-muted); font-size: 14.5px; }

/* ---------- 产品服务 ---------- */
.svc-block { display: grid; grid-template-columns: .9fr 1.1fr; gap: 44px; align-items: center; margin-bottom: 64px; }
.svc-block:last-child { margin-bottom: 0; }
.svc-block.reverse { direction: rtl; }
.svc-block.reverse > * { direction: ltr; }
.svc-media {
  border-radius: var(--radius); min-height: 280px; padding: 34px;
  background:
    radial-gradient(500px 280px at 10% 0%, rgba(47, 111, 237, .2), transparent 60%),
    linear-gradient(160deg, #0d1f3c, #14346b);
  color: #fff; display: flex; flex-direction: column; justify-content: center; gap: 14px;
}
.svc-media .tag { font-size: 12px; letter-spacing: 2px; color: #7fb0ff; }
.svc-media h3 { font-size: 24px; font-weight: 800; }
.svc-media ul li { display: flex; gap: 10px; align-items: center; padding: 7px 0; color: rgba(255,255,255,.85); font-size: 14.5px; }
.svc-media ul li .ck { color: var(--c-gold); }
.svc-detail h3 { color: var(--c-primary); font-size: 24px; margin-bottom: 14px; }
.svc-detail p { color: var(--c-text-muted); margin-bottom: 18px; }
.svc-detail .chips { display: flex; flex-wrap: wrap; gap: 10px; }
.svc-detail .chip {
  font-size: 13px; padding: 7px 14px; border-radius: 999px;
  background: var(--c-bg-soft); border: 1px solid var(--c-border); color: var(--c-primary-600); font-weight: 500;
}

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.contact-info .info-item {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 20px 0; border-bottom: 1px dashed var(--c-border);
}
.contact-info .info-item:last-child { border-bottom: none; }
.contact-info .ic { flex-shrink: 0; width: 46px; height: 46px; border-radius: 12px; background: rgba(47, 111, 237, .12); color: var(--c-accent); display: flex; align-items: center; justify-content: center; }
.contact-info .ic svg { width: 22px; height: 22px; }
.contact-info .info-item .k { font-size: 13px; color: var(--c-text-muted); }
.contact-info .info-item .v { font-size: 16px; font-weight: 600; color: var(--c-primary); }
.contact-info .info-item .v a { color: var(--c-primary); }
.copy-btn {
  margin-left: 10px; font-size: 12px; padding: 4px 10px; border-radius: 999px;
  border: 1px solid var(--c-border); background: #fff; color: var(--c-accent);
  cursor: pointer; font-weight: 600; transition: all .2s;
}
.copy-btn:hover { border-color: var(--c-accent); }
.map-card {
  border-radius: var(--radius); overflow: hidden; border: 1px solid var(--c-border);
  min-height: 320px; position: relative;
  background:
    radial-gradient(600px 320px at 80% 10%, rgba(47,111,237,.12), transparent 60%),
    linear-gradient(160deg, #eef3fb, #e3ecf8);
  display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 12px;
  color: var(--c-primary);
}
.map-card .pin { width: 54px; height: 54px; border-radius: 50%; background: linear-gradient(135deg, var(--c-accent), var(--c-primary)); color: #fff; display: flex; align-items: center; justify-content: center; box-shadow: 0 10px 24px rgba(47,111,237,.35); }
.map-card .addr { font-weight: 600; text-align: center; padding: 0 24px; }
.map-card .hint { font-size: 13px; color: var(--c-text-muted); }

.contact-form { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius); padding: 30px; }
.contact-form h3 { color: var(--c-primary); margin-bottom: 18px; font-size: 20px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 14px; color: var(--c-text-muted); margin-bottom: 7px; }
.field input, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--c-border); border-radius: var(--radius-sm);
  font-size: 15px; font-family: inherit; color: var(--c-text); background: var(--c-bg-soft);
  transition: border-color .2s, background .2s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--c-accent); background: #fff; }
.field textarea { resize: vertical; min-height: 110px; }
.form-note { font-size: 13px; color: var(--c-text-muted); margin-top: 4px; }

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--c-bg-deep); color: rgba(255, 255, 255, .72); padding: 56px 0 26px;
}
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 36px; }
.footer-logo {
  height: 52px;
  width: auto;
  object-fit: contain;
  border-radius: 8px;
  margin-bottom: 16px;
}
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 300px; }
.footer-col h5 { color: #fff; font-size: 15px; margin-bottom: 16px; letter-spacing: 1px; }
.footer-col a { display: block; padding: 6px 0; font-size: 14px; color: rgba(255,255,255,.7); transition: color .2s; }
.footer-col a:hover { color: #7fb0ff; }
.footer-contact .line { display: flex; gap: 10px; align-items: center; font-size: 14px; padding: 5px 0; }
.footer-contact .line svg { width: 16px; height: 16px; color: var(--c-gold); flex-shrink: 0; }
.footer-bottom {
  margin-top: 40px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .12);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  font-size: 13px; color: rgba(255, 255, 255, .55);
}

.gongan-icon { width: 20px; height: 20px; vertical-align: middle; margin-right: 4px; }
.footer-bottom a[href*="beian.mps"] { color: rgba(255, 255, 255, .7); text-decoration: none; display: inline-flex; align-items: center; }
.footer-bottom a[href*="beian.mps"]:hover { color: #fff; }

/* ---------- 滚动渐显 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in-view { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .svc-block, .svc-block.reverse, .contact-grid { grid-template-columns: 1fr; direction: ltr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .values { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .section { padding: 60px 0; }
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .hero-stats .item .num { font-size: 24px; }
  .cta-band { padding: 36px 26px; }
  .metric-row { grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 26px; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}