/* ============================================================
   优档软件官网 · 全站样式表
   风格：政务稳重风（档案蓝 + 金色），沿用 001 变体视觉语言
   零外部依赖，纯静态，可直接部署到任意静态托管
   ============================================================ */

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

:root {
  --navy: #1f3a5f;
  --navy-deep: #16283f;
  --navy-soft: #2c4f7c;
  --gold: #b08d3e;
  --gold-light: #d4b978;
  --paper: #f5f4f0;
  --white: #ffffff;
  --ink: #2b2b2b;
  --ink-soft: #5a5a5a;
  --line: #e3ded2;
  --line-soft: #efebe2;
  --ok: #2e7d5b;
  --warn: #a8621b;
  --radius: 8px;
  --maxw: 1160px;
}

body {
  font-family: "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
  -webkit-font-smoothing: antialiased;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
}

a { color: var(--navy); }
img { max-width: 100%; }

/* ===== 顶部信息条 ===== */
.topbar {
  background: var(--navy-deep);
  color: #dfe6ee;
  font-size: 13px;
  padding: 8px 16px;
  text-align: center;
  letter-spacing: .5px;
}
.topbar b { color: var(--gold-light); }
.topbar a { color: var(--gold-light); text-decoration: none; }

/* ===== 导航 ===== */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(31, 58, 95, 0.97);
  backdrop-filter: blur(6px);
  border-bottom: 2px solid var(--gold);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; height: 62px; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 12px; color: #fff; text-decoration: none; flex-shrink: 0; }
.brand .logo {
  width: 38px; height: 38px; border-radius: 9px;
  background: url(../img/logo.png) center/cover no-repeat,
              linear-gradient(135deg, var(--gold), #8a6d2f);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 700; color: transparent; flex-shrink: 0;
  overflow: hidden;
}
.brand .name { font-size: 20px; font-weight: 700; letter-spacing: 2px; line-height: 1.2; }
.brand .sub { font-size: 11px; color: #b9c6d6; letter-spacing: 1px; }
.nav-links { display: flex; gap: 24px; list-style: none; }
.nav-links a {
  color: #d6dee8; text-decoration: none; font-size: 15px;
  padding: 6px 2px; border-bottom: 2px solid transparent; transition: all .2s;
}
.nav-links a:hover { color: #fff; border-bottom-color: var(--gold-light); }
.nav-links a.active { color: #fff; border-bottom-color: var(--gold-light); }
.nav-contact {
  background: var(--gold); color: #fff; text-decoration: none;
  padding: 8px 18px; border-radius: 4px; font-size: 14px; font-weight: 600;
  transition: background .2s; white-space: nowrap; flex-shrink: 0;
}
.nav-contact:hover { background: #c9a353; }

/* ===== Hero ===== */
.hero {
  background:
    linear-gradient(rgba(22, 40, 63, 0.9), rgba(22, 40, 63, 0.95)),
    repeating-linear-gradient(45deg, rgba(255,255,255,0.03) 0 2px, transparent 2px 14px);
  color: #fff; text-align: center;
  padding: 84px 24px 72px;
}
.hero .kicker {
  display: inline-block; color: var(--gold-light);
  border: 1px solid rgba(212,185,120,0.5); border-radius: 20px;
  padding: 4px 16px; font-size: 13px; letter-spacing: 3px; margin-bottom: 22px;
}
.hero h1 { font-size: 44px; font-weight: 700; letter-spacing: 2px; line-height: 1.3; }
.hero h1 em { font-style: normal; color: var(--gold-light); }
.hero p.lead { max-width: 760px; margin: 20px auto 0; font-size: 17px; color: #c9d3df; }
.hero .stats { display: flex; justify-content: center; gap: 52px; margin-top: 40px; flex-wrap: wrap; }
.hero .stat { text-align: center; }
.hero .stat .num { font-size: 32px; font-weight: 700; color: var(--gold-light); }
.hero .stat .lbl { font-size: 13px; color: #aebac9; margin-top: 4px; }
.hero-cta { margin-top: 38px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== 按钮 ===== */
.btn-primary, .btn-ghost, .btn-line {
  display: inline-block; text-decoration: none; border-radius: 4px;
  font-size: 16px; font-weight: 600; transition: all .2s; cursor: pointer;
  border: 1px solid transparent; font-family: inherit;
}
.btn-primary { background: var(--gold); color: #fff; padding: 12px 32px; }
.btn-primary:hover { background: #c9a353; }
.btn-ghost { border-color: rgba(255,255,255,0.45); color: #fff; padding: 12px 28px; }
.btn-ghost:hover { border-color: var(--gold-light); color: var(--gold-light); }
.btn-line { border-color: var(--navy); color: var(--navy); padding: 10px 24px; background: transparent; }
.btn-line:hover { background: var(--navy); color: #fff; }
.btn-sm { font-size: 14px; padding: 8px 18px; }
.btn-block { display: block; width: 100%; text-align: center; }
.btn-disabled { background: #b9b3a6; color: #fff; cursor: not-allowed; }
.btn-disabled:hover { background: #b9b3a6; }

/* ===== 区块 ===== */
section { padding: 68px 24px; }
.wrap { max-width: var(--maxw); margin: 0 auto; }
.sec-head { text-align: center; margin-bottom: 48px; }
.sec-head .tag { display: inline-block; color: var(--gold); font-size: 13px; letter-spacing: 3px; margin-bottom: 10px; }
.sec-head h2 { font-size: 32px; color: var(--navy-deep); letter-spacing: 1px; }
.sec-head p { margin-top: 12px; color: var(--ink-soft); font-size: 15px; max-width: 680px; margin-left: auto; margin-right: auto; }
.bg-white { background: var(--white); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* ===== 内页页头 ===== */
.page-head {
  background: linear-gradient(rgba(22,40,63,0.93), rgba(22,40,63,0.97)),
    repeating-linear-gradient(45deg, rgba(255,255,255,0.03) 0 2px, transparent 2px 14px);
  color: #fff; padding: 46px 24px 40px;
}
.page-head h1 { font-size: 30px; letter-spacing: 1px; }
.page-head p { color: #b9c6d6; font-size: 15px; margin-top: 10px; max-width: 760px; }
.crumb { font-size: 13px; color: #8fa0b5; margin-bottom: 12px; }
.crumb a { color: #b9c6d6; text-decoration: none; }
.crumb a:hover { color: var(--gold-light); }

/* ===== 产品卡片 ===== */
.prod-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
/* 只有一款软件时居中显示，避免右侧大片留白 */
.prod-grid.single { grid-template-columns: minmax(0, 660px); justify-content: center; }
.prod-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px; display: flex; flex-direction: column; gap: 14px;
  transition: box-shadow .25s, transform .25s, border-color .25s;
}
.prod-card:hover { box-shadow: 0 12px 32px rgba(31,58,95,0.14); transform: translateY(-4px); border-color: var(--gold); }
.p-title { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.p-name { font-size: 21px; color: var(--navy-deep); font-weight: 700; }
.p-name a { color: inherit; text-decoration: none; }
.p-name a:hover { color: var(--gold); }
.p-ver { font-size: 13px; color: var(--gold); background: #f7f1e3; padding: 2px 10px; border-radius: 12px; white-space: nowrap; }
.p-desc { font-size: 14px; color: var(--ink-soft); }
.p-feats { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.p-feats li { font-size: 13.5px; color: var(--ink); padding-left: 20px; position: relative; }
.p-feats li::before {
  content: ""; position: absolute; left: 0; top: 8px;
  width: 9px; height: 9px; background: var(--gold); border-radius: 2px; transform: rotate(45deg);
}
.p-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.p-tags span { font-size: 12px; color: var(--navy); background: #e8eef6; padding: 3px 10px; border-radius: 3px; }
.p-meta {
  display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 6px 16px;
  padding: 12px 14px; background: #faf8f4; border: 1px solid var(--line-soft); border-radius: 6px;
  font-size: 12.5px; color: var(--ink-soft);
}
.p-meta b { color: var(--navy); font-weight: 600; }
/* 详情页顶部信息卡：桌面三列，窄屏降为两列 / 单列 */
.p-meta-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 720px) { .p-meta-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 460px) { .p-meta-3 { grid-template-columns: 1fr; } }
.p-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 4px; align-items: center; }
.p-actions .hint { font-size: 12.5px; color: var(--ink-soft); }

/* ===== 优势 ===== */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.adv-item { text-align: center; }
.adv-item .ic {
  width: 58px; height: 58px; margin: 0 auto 14px; border-radius: 50%;
  background: #eef2f7; border: 1px solid #d5dee9;
  display: flex; align-items: center; justify-content: center; font-size: 24px;
}
.adv-item h3 { font-size: 16px; color: var(--navy-deep); margin-bottom: 8px; }
.adv-item p { font-size: 13px; color: var(--ink-soft); }

/* ===== 获取步骤 ===== */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.step {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px; position: relative;
}
.step .n {
  width: 34px; height: 34px; border-radius: 50%; background: var(--navy); color: #fff;
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 15px;
  margin-bottom: 14px;
}
.step h3 { font-size: 17px; color: var(--navy-deep); margin-bottom: 8px; }
.step p { font-size: 13.5px; color: var(--ink-soft); }
.step .phone-lg { font-size: 20px; font-weight: 700; color: var(--gold); letter-spacing: 1px; }

/* ===== 提示框 ===== */
.notice {
  border-radius: 6px; padding: 16px 18px 16px 20px; font-size: 14px;
  border-left: 4px solid var(--navy); background: #eef2f7; color: var(--ink);
}
.notice h4 { font-size: 15px; color: var(--navy-deep); margin-bottom: 6px; }
.notice p, .notice ul { font-size: 13.5px; color: var(--ink-soft); }
.notice ul { margin: 8px 0 0 18px; display: flex; flex-direction: column; gap: 5px; }
.notice.warn { border-left-color: var(--warn); background: #fdf5ec; }
.notice.warn h4 { color: var(--warn); }
.notice.danger { border-left-color: #a33; background: #fdf0f0; }
.notice.danger h4 { color: #a33; }
.notice.ok { border-left-color: var(--ok); background: #eef7f2; }
.notice.ok h4 { color: var(--ok); }
.notice + .notice { margin-top: 14px; }

/* ===== 键值表 ===== */
.kv { width: 100%; border-collapse: collapse; background: var(--white); font-size: 14px; }
.kv th, .kv td { border: 1px solid var(--line); padding: 11px 16px; text-align: left; vertical-align: top; }
.kv th { background: #f7f5f0; color: var(--navy-deep); font-weight: 600; width: 190px; white-space: nowrap; }
.kv td { color: var(--ink-soft); }
.kv code { background: #f2efe8; padding: 1px 6px; border-radius: 3px; font-size: 12.5px; color: var(--navy); }

/* ===== 正文排版 ===== */
.prose { max-width: 880px; }
.prose h2 { font-size: 24px; color: var(--navy-deep); margin: 38px 0 14px; padding-bottom: 8px; border-bottom: 2px solid var(--line); }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 17px; color: var(--navy); margin: 26px 0 10px; }
.prose p { font-size: 14.5px; color: var(--ink-soft); margin-bottom: 12px; }
.prose ul, .prose ol { margin: 0 0 14px 22px; display: flex; flex-direction: column; gap: 7px; }
.prose li { font-size: 14.5px; color: var(--ink-soft); }
.prose code { background: #f2efe8; padding: 2px 6px; border-radius: 3px; font-size: 13px; color: var(--navy); }
.prose a { color: var(--navy); text-decoration: underline; }

/* ===== 校验值框 ===== */
.hash {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  background: #16283f; color: #cfd9e5; border-radius: 6px; padding: 12px 14px;
  font-family: Consolas, "Courier New", monospace; font-size: 12.5px; word-break: break-all;
}
.hash .label { color: var(--gold-light); flex-shrink: 0; font-family: inherit; }

/* ===== 更新日志 ===== */
.log { display: flex; flex-direction: column; gap: 22px; }
.log-item { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 26px; }
.log-item .head { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 12px; }
.log-item .v { font-size: 19px; font-weight: 700; color: var(--navy-deep); }
.log-item .d { font-size: 13px; color: var(--ink-soft); }
.log-item ul { margin-left: 20px; display: flex; flex-direction: column; gap: 6px; }
.log-item li { font-size: 14px; color: var(--ink-soft); }

/* ===== 徽标 ===== */
.badge {
  display: inline-block; font-size: 12px; padding: 2px 9px; border-radius: 3px;
  background: #e8eef6; color: var(--navy);
}
.badge.gold { background: #f7f1e3; color: var(--gold); }
.badge.ok { background: #e6f4ed; color: var(--ok); }
.badge.warn { background: #fdf0e2; color: var(--warn); }

/* ===== 联系区 ===== */
.contact { background: var(--navy-deep); color: #dfe6ee; text-align: center; }
.contact h2 { color: #fff; font-size: 30px; margin-bottom: 12px; }
.contact p { color: #aebac9; font-size: 15px; max-width: 660px; margin: 0 auto 28px; }
.contact .phone { display: inline-flex; align-items: center; gap: 12px; font-size: 26px; font-weight: 700; color: var(--gold-light); letter-spacing: 1px; }
.contact .phone a { color: inherit; text-decoration: none; }
.contact .note { margin-top: 18px; font-size: 12.5px; color: #7e8b9c; }
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; max-width: 900px; margin: 30px auto 0; text-align: left; }
.contact-grid .c-item { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.12); border-radius: 6px; padding: 18px 20px; }
.contact-grid .c-item .k { font-size: 12.5px; color: #8fa0b5; letter-spacing: 1px; margin-bottom: 6px; }
.contact-grid .c-item .v { font-size: 16px; color: #fff; font-weight: 600; }

footer {
  background: #0f1d2e; color: #7e8b9c; font-size: 13px;
  padding: 26px 16px; text-align: center; line-height: 1.9;
}
footer a { color: #9fb0c4; text-decoration: none; }
footer a:hover { color: var(--gold-light); }
footer .fnav { margin-bottom: 8px; display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }

/* ===== 响应式 ===== */
@media (max-width: 980px) {
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .prod-grid, .prod-grid.single { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  .hero { padding: 60px 20px 52px; }
  .hero .stats { gap: 32px; margin-top: 32px; }
  .nav-links { display: none; }
  .nav-inner { padding: 0 16px; height: 58px; }
  .brand .name { font-size: 17px; letter-spacing: 1px; }
  section { padding: 52px 18px; }
  .sec-head h2 { font-size: 26px; }
  .page-head h1 { font-size: 24px; }
  .kv th { width: auto; }
  .kv th, .kv td { display: block; width: 100%; border-top: none; }
  .kv tr:first-child th { border-top: 1px solid var(--line); }
  .kv th { border-bottom: none; background: #f7f5f0; }
}