/* ============================================================
   护航派单微官网 · 深色电竞风
   移动端优先，max-width 480px 居中
   ============================================================ */
:root {
  --bg: #0d0a1a;
  --bg2: #14102b;
  --card: rgba(255, 255, 255, .05);
  --card2: rgba(255, 255, 255, .08);
  --line: rgba(139, 92, 246, .35);
  --purple: #6366f1;
  --violet: #8b5cf6;
  --pink: #ec4899;
  --txt: #f1f5f9;
  --txt2: #94a3b8;
  --green: #34d399;
  --red: #f87171;
  --grad: linear-gradient(135deg, #6366f1, #8b5cf6);
  --grad-pink: linear-gradient(135deg, #8b5cf6, #ec4899);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(800px 400px at 50% -100px, rgba(99, 102, 241, .25), transparent),
    var(--bg);
  color: var(--txt);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
.page { max-width: 480px; margin: 0 auto; padding-bottom: 76px; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ---------- 顶部导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px;
  background: rgba(13, 10, 26, .85); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav .logo { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 16px; white-space: nowrap; }
.nav .logo .mark-img { height: 32px; width: auto; display: block; }
.nav .logo .mark {
  width: 30px; height: 30px; border-radius: 9px; background: var(--grad);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: 900;
}
.nav .links { display: flex; gap: 11px; font-size: 12.5px; color: var(--txt2); }
.nav .links a { white-space: nowrap; }
.nav .links a.on, .nav .links a:active, .nav .links a.nav-current { color: #fff; font-weight: 700; }
.nav .links a.nav-current { position: relative; }
.nav .links a.nav-current::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -3px; height: 2px;
  background: var(--grad); border-radius: 1px;
}

/* ---------- Hero ---------- */
.hero {
  text-align: center; padding: 40px 20px 28px;
  position: relative; overflow: hidden;
}
/* 系统截图虚化背景层 */
.hero::before {
  content: ""; position: absolute; inset: -30px;
  background: url(img/shots/u0-home.jpg) center 12% / cover no-repeat;
  filter: blur(26px) saturate(1.5) brightness(1.08);
  opacity: .6;
  z-index: 0; pointer-events: none;
}
/* 深色蒙版：上浅下深，向下融入页面底色 */
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(13,10,26,.3) 0%, rgba(13,10,26,.62) 58%, #0d0a1a 100%);
  z-index: 0; pointer-events: none;
}
.hero > * { position: relative; z-index: 1; }
.hero .tag {
  display: inline-block; font-size: 11px; letter-spacing: .2em; font-weight: 700;
  color: #c4b5fd; border: 1px solid var(--line); border-radius: 20px;
  padding: 4px 14px; margin-bottom: 14px;
}
.hero h1 { font-size: 34px; font-weight: 900; line-height: 1.25; margin-bottom: 10px; }
.hero h1 .grad {
  background: var(--grad-pink);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p { color: var(--txt2); font-size: 14px; line-height: 1.7; }
/* 子页紧凑 Hero（案例页等） */
.hero-sub { padding: 32px 20px 22px; }
.hero-sub h1 { font-size: 28px; }

/* 数据背书 */
.stats { display: flex; margin: 22px 16px 0; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 14px 0; }
.stats .s { flex: 1; text-align: center; }
.stats .s + .s { border-left: 1px solid rgba(139, 92, 246, .2); }
.stats .num { font-size: 20px; font-weight: 900; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stats .lab { font-size: 11px; color: var(--txt2); margin-top: 3px; }

/* ---------- 通用模块 ---------- */
.section { padding: 36px 16px 0; }
.sec-title { text-align: center; margin-bottom: 16px; }
.sec-title h2 { font-size: 21px; font-weight: 900; }
.sec-title h2 .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.sec-title p { color: var(--txt2); font-size: 12.5px; margin-top: 5px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 16px; }

/* ---------- 核心功能 ---------- */
.funcs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.func { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px 12px; }
.func .num {
  font-size: 26px; font-weight: 900; line-height: 1;
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 10px; letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
}
.func .t { font-size: 14.5px; font-weight: 800; margin-bottom: 4px; }
.func .d { font-size: 11.5px; color: var(--txt2); line-height: 1.6; }

/* ---------- FAQ 折叠 ---------- */
.faq-list { display: grid; gap: 10px; }
.faq-item {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 13px 15px; cursor: pointer;
}
.faq-item summary {
  font-size: 14px; font-weight: 800; color: var(--txt); line-height: 1.5;
  list-style: none; position: relative; padding-right: 24px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  font-size: 17px; font-weight: 700; color: #c4b5fd; transition: transform .2s;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item p { font-size: 12.5px; color: var(--txt2); line-height: 1.75; margin-top: 9px; }

/* 通用小按钮（查看全部案例等） */
.btn-link {
  display: inline-block; border: none; border-radius: 20px; background: var(--grad); color: #fff;
  font-size: 12px; font-weight: 700; padding: 8px 20px; cursor: pointer; white-space: nowrap;
}

/* ---------- 服务商优势 ---------- */
.adv { display: grid; gap: 10px; }
.adv-item { display: flex; gap: 12px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px; }
.adv-item .ai {
  width: 40px; height: 40px; border-radius: 11px;
  background: linear-gradient(135deg, rgba(139,92,246,.20), rgba(236,72,153,.12));
  display: flex; align-items: center; justify-content: center;
  font-size: 19px; flex-shrink: 0; font-weight: 900;
  background-clip: padding-box; color: #c4b5fd;
}
.adv-item .at { font-size: 14.5px; font-weight: 800; margin-bottom: 3px; }
.adv-item .ad { font-size: 12px; color: var(--txt2); line-height: 1.65; }

/* ---------- 报价 ---------- */
.plans { display: grid; gap: 12px; }
.plan { position: relative; background: var(--card); border: 1.5px solid var(--line); border-radius: 16px; padding: 16px 15px; }
.plan.hot { border: 2px solid var(--violet); background: linear-gradient(180deg, rgba(99,102,241,.15), rgba(236,72,153,.06)); }
.plan .badge { position: absolute; top: -10px; left: 14px; background: var(--grad); color: #fff; font-size: 10.5px; font-weight: 700; padding: 3px 11px; border-radius: 11px; }
.plan .pn { font-size: 14px; font-weight: 800; color: #c4b5fd; margin-bottom: 4px; }
.plan .pv { font-size: 28px; font-weight: 900; margin-bottom: 8px; }
.plan .pv .rmb { font-size: 14px; margin-right: 2px; }
.plan .pv .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.plan ul { list-style: none; }
.plan li { position: relative; padding-left: 16px; font-size: 12.5px; color: var(--txt); font-weight: 600; line-height: 1.7; }
.plan li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 800; }

/* ---------- 表单 ---------- */
.form { display: grid; gap: 10px; }
.form input, .form textarea, .form select {
  width: 100%; background: var(--card2); border: 1px solid var(--line); border-radius: 12px;
  color: var(--txt); font-size: 14px; padding: 12px 13px; font-family: inherit;
}
.form input::placeholder, .form textarea::placeholder { color: #64748b; }
.form textarea { min-height: 84px; resize: vertical; }
.form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.btn-main {
  border: none; border-radius: 14px; background: var(--grad); color: #fff;
  font-size: 15.5px; font-weight: 800; padding: 13px; cursor: pointer; letter-spacing: .05em;
}
.btn-main:disabled { opacity: .55; }

/* ---------- Footer ---------- */
.footer { text-align: center; padding: 34px 20px 20px; color: var(--txt2); }
.footer .flogo { width: 42px; height: auto; margin: 0 auto 12px; display: block; }
.footer .f1 { font-size: 15px; font-weight: 800; color: var(--txt); }
.footer .f2 { font-size: 12px; margin-top: 6px; }
.footer .f3 { font-size: 10.5px; margin-top: 12px; opacity: .6; }
.footer .ficp { margin-top: 12px; font-size: 12px; }
.footer .ficp a { color: var(--txt2); text-decoration: none; }
.footer .ficp a:hover { color: var(--txt); }

/* ---------- 底部悬浮 CTA ---------- */
.dock {
  position: fixed; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 480px; z-index: 60;
  display: flex; gap: 10px; padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  background: rgba(13,10,26,.92); backdrop-filter: blur(12px); border-top: 1px solid var(--line);
}
.dock .btn { flex: 1; text-align: center; border-radius: 13px; padding: 11px 0; font-size: 14px; font-weight: 800; cursor: pointer; border: 1px solid var(--line); background: var(--card2); color: var(--txt); }
.dock .btn.main { background: var(--grad); border: none; }

/* ---------- 海报弹窗 ---------- */
.popup-mask {
  position: fixed; inset: 0; z-index: 90;
  background: rgba(5, 3, 12, .8); backdrop-filter: blur(4px);
  display: none; align-items: center; justify-content: center; padding: 20px;
}
.popup-mask.show { display: flex; }
.popup-box { position: relative; width: min(400px, 92vw); animation: popIn .3s ease; }
@keyframes popIn { from { opacity: 0; transform: scale(.92) translateY(10px); } to { opacity: 1; transform: none; } }
.popup-box .pimg {
  max-height: 80vh; overflow-y: auto; -webkit-overflow-scrolling: touch;
  border-radius: 16px; border: 1px solid var(--line);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .55);
}
.popup-box .pimg img { width: 100%; display: block; }
.popup-close {
  position: absolute; top: -13px; right: -13px; z-index: 2;
  width: 34px; height: 34px; border-radius: 50%; border: none; cursor: pointer;
  background: var(--grad); color: #fff; font-size: 16px; font-weight: 800; line-height: 1;
  box-shadow: 0 4px 14px rgba(0, 0, 0, .4);
}

/* ---------- Toast ---------- */
.toast {
  position: fixed; top: 18%; left: 50%; transform: translateX(-50%) translateY(-8px);
  background: rgba(20,16,43,.95); border: 1px solid var(--line); color: #fff;
  font-size: 13.5px; font-weight: 600; padding: 11px 20px; border-radius: 12px;
  opacity: 0; pointer-events: none; transition: all .25s; z-index: 99; max-width: 80%;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 后台 ---------- */
.admin-wrap { max-width: 720px; margin: 0 auto; padding: 20px 16px 60px; }
.admin-wrap h1 { font-size: 20px; margin-bottom: 16px; }
.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th, .tbl td { border-bottom: 1px solid var(--line); padding: 9px 8px; text-align: left; }
.tbl th { color: var(--txt2); font-weight: 600; }
.tbl .op a, .tbl .op button { color: #c4b5fd; margin-right: 8px; background: none; border: none; cursor: pointer; font-size: 13px; }
.tbl .op .danger { color: var(--red); }
.admin-form { display: grid; gap: 10px; margin: 14px 0 24px; }
.admin-form input, .admin-form select, .admin-form textarea {
  background: var(--card2); border: 1px solid var(--line); border-radius: 10px;
  color: var(--txt); padding: 10px 12px; font-size: 14px; font-family: inherit; width: 100%;
}
.admin-form .row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.login-box { max-width: 340px; margin: 80px auto; }
.login-box .card { display: grid; gap: 12px; }
.flash { background: rgba(52,211,153,.12); border: 1px solid rgba(52,211,153,.4); color: var(--green); border-radius: 10px; padding: 10px 12px; font-size: 13px; margin-bottom: 12px; }
.flash.err { background: rgba(248,113,113,.12); border-color: rgba(248,113,113,.4); color: var(--red); }

/* ---------- 文章 ---------- */
.cat-chip { display: inline-block; background: var(--card2); border: 1px solid var(--line); color: var(--txt2); font-size: 12.5px; font-weight: 700; padding: 7px 16px; border-radius: 20px; }
.cat-chip.on { background: var(--grad); color: #fff; border-color: transparent; }
.article-list { display: grid; gap: 12px; }
.article-card { display: block; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px 16px; }
.article-card:active { border-color: var(--violet); }
.article-card .meta { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; font-size: 11px; color: var(--txt2); }
.article-card .cat { background: rgba(139,92,246,.18); color: #c4b5fd; font-weight: 700; padding: 2px 9px; border-radius: 10px; }
.article-card .t { font-size: 15.5px; font-weight: 800; line-height: 1.5; margin-bottom: 6px; }
.article-card .s { font-size: 12.5px; color: var(--txt2); line-height: 1.65; }
.article-meta { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--txt2); margin: 12px 0 18px; }
.article-meta .cat { background: rgba(139,92,246,.18); color: #c4b5fd; font-weight: 700; padding: 2px 10px; border-radius: 10px; }
.article-body { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 20px 17px; }
.article-body p { font-size: 14px; line-height: 1.85; color: var(--txt); margin-bottom: 12px; }
.article-body h3 { font-size: 16px; font-weight: 800; color: #c4b5fd; margin: 20px 0 10px; }
.article-body h3:first-child { margin-top: 0; }
.article-body ul { margin: 0 0 12px; padding-left: 2px; list-style: none; }
.article-body li { position: relative; padding-left: 18px; font-size: 13.5px; line-height: 1.8; color: var(--txt2); font-weight: 600; }
.article-body li::before { content: ""; position: absolute; left: 2px; top: .72em; width: 7px; height: 7px; border-radius: 50%; background: var(--grad); }
.article-back { display: inline-block; margin-top: 18px; font-size: 13px; color: #c4b5fd; font-weight: 700; }
/* GEO 核心结论框（正文顶部，供 AI 搜索引擎直接引用） */
.art-lead { background: linear-gradient(135deg, rgba(139,92,246,.16), rgba(99,102,241,.07)); border: 1px solid rgba(139,92,246,.38); border-left: 4px solid #8b5cf6; border-radius: 12px; padding: 14px 16px; margin: 16px 0; font-size: 14px; line-height: 1.85; color: var(--txt); }
.art-lead b { color: #c4b5fd; font-weight: 800; margin-right: 10px; }

/* ============================================================
   PC 端适配（≥768px）：宽版布局，模块多列铺开
   ============================================================ */
@media (min-width: 768px) {
  .page { max-width: 1080px; padding-bottom: 0; }

  /* 导航 */
  .nav { padding: 16px 40px; }
  .nav .logo { font-size: 18px; }
  .nav .links { gap: 32px; font-size: 14.5px; }
  /* Hero */
  .hero { padding: 88px 40px 52px; }
  .hero h1 { font-size: 48px; margin-bottom: 16px; }
  .hero p { font-size: 16.5px; }
  .hero .tag { font-size: 12.5px; margin-bottom: 20px; }
  .hero-sub { padding: 72px 40px 44px; }
  .hero-sub h1 { font-size: 40px; }
  .stats { max-width: 760px; margin: 32px auto 0; padding: 22px 0; }
  .stats .num { font-size: 32px; }
  .stats .lab { font-size: 13.5px; margin-top: 5px; }

  /* 通用模块 */
  .section { padding: 76px 40px 0; }
  .section.alt { margin: 30px 16px 0; }
  .sec-title { margin-bottom: 32px; }
  .sec-title h2 { font-size: 30px; }
  .sec-title p { font-size: 14.5px; margin-top: 8px; }
  .card { padding: 24px; border-radius: 18px; }

  /* 核心功能：3 列 */
  .funcs { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .func { padding: 26px 22px; border-radius: 16px; }
  .func .num { font-size: 34px; margin-bottom: 12px; }
  .func .t { font-size: 17px; margin-bottom: 7px; }
  .func .d { font-size: 13.5px; line-height: 1.7; }

  /* 详解/场景/案例/优势：2 列 */
  .adv { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .adv-item { padding: 22px; border-radius: 16px; align-items: flex-start; }
  .adv-item .ai { width: 46px; height: 46px; font-size: 22px; }
  .adv-item .at { font-size: 16.5px; margin-bottom: 6px; }
  .adv-item .ad { font-size: 13.5px; line-height: 1.75; }

  /* 报价：3 列 */
  .plans { grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .plan { padding: 26px 22px; }
  .plan .pn { font-size: 15px; margin-bottom: 8px; }
  .plan .pv { font-size: 38px; margin-bottom: 12px; }
  .plan li { font-size: 13.5px; line-height: 1.9; }

  /* 文章：列表 2 列，正文居中限宽 */
  .article-list { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .article-card .t { font-size: 17px; }
  .article-card .s { font-size: 13.5px; }
  .article-body { max-width: 820px; margin: 0 auto; padding: 32px 34px; }
  .article-body p { font-size: 15px; }

  /* FAQ：2 列 */
  .faq-list { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .faq-item { padding: 17px 19px; }
  .faq-item summary { font-size: 15px; }
  .faq-item p { font-size: 13px; }

  /* 表单：居中限宽 */
  .form { max-width: 660px; margin: 0 auto; }

  /* Footer */
  .footer { padding: 56px 40px 36px; }
  .footer .flogo { width: 52px; margin-bottom: 14px; }
  .footer .f1 { font-size: 17px; }
  .footer .f2 { font-size: 13px; }

  /* PC 隐藏底部悬浮栏（顶部导航已有锚点） */
  .dock { display: none; }
}

/* 大屏再放宽（≥1280px） */
@media (min-width: 1280px) {
  .page { max-width: 1160px; }
  .funcs { grid-template-columns: repeat(3, 1fr); }
  .adv { gap: 16px; }
}

/* ---------- 真机流程演示（交互） ---------- */
.flow-demo { display: flex; flex-direction: column; gap: 14px; }
.flow-steps { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.fstep {
  text-align: left; cursor: pointer; font-family: inherit;
  border: 1px solid var(--line); background: var(--card);
  border-radius: 12px; padding: 10px 12px; color: var(--txt);
  display: flex; flex-direction: column; gap: 3px;
  transition: background .25s, border-color .25s, transform .25s;
}
.fstep i { font-style: normal; font-size: 10px; font-weight: 800; color: #c4b5fd; letter-spacing: .15em; }
.fstep b { font-size: 14px; }
.fstep span { font-size: 11px; color: var(--txt2); line-height: 1.45; }
.fstep:hover { border-color: #8b5cf6; }
.fstep.on {
  background: rgba(139, 92, 246, .16); border-color: #8b5cf6;
  box-shadow: inset 0 0 0 1px #8b5cf6; transform: translateY(-1px);
}
.phone {
  position: relative; width: min(300px, 82vw); margin: 8px auto 0;
  aspect-ratio: 9 / 18.6; border-radius: 38px; background: #05030c;
  border: 1px solid rgba(139, 92, 246, .45); padding: 10px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .5), 0 0 46px rgba(139, 92, 246, .18);
}
.phone::before {
  content: ''; position: absolute; top: 18px; left: 50%; transform: translateX(-50%);
  width: 34%; height: 20px; background: #05030c; border-radius: 12px; z-index: 3;
  border: 1px solid rgba(255, 255, 255, .06);
}
.phone-screen {
  position: relative; width: 100%; height: 100%;
  border-radius: 28px; overflow: hidden; background: #0d0a1a;
}
.phone-screen img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: top;
  opacity: 0; transform: translateX(26px) scale(.98);
  transition: opacity .45s ease, transform .45s ease;
}
.phone-screen img.on { opacity: 1; transform: none; }
@media (min-width: 768px) {
  .flow-demo { flex-direction: row; align-items: center; max-width: 1080px; margin: 0 auto; gap: 44px; }
  .flow-steps { flex: 1; gap: 10px; }
  .fstep { padding: 14px 16px; border-radius: 14px; }
  .fstep b { font-size: 16px; }
  .fstep span { font-size: 12.5px; }
  .phone { width: 330px; margin: 0; flex-shrink: 0; }
}

/* ---------- 三端标签切换 ---------- */
.ftabs { display: flex; gap: 8px; justify-content: center; margin-bottom: 14px; }
.ftab {
  font-family: inherit; cursor: pointer; font-size: 12.5px; font-weight: 700;
  color: var(--txt2); background: var(--card); border: 1px solid var(--line);
  border-radius: 20px; padding: 8px 14px; transition: all .25s;
}
.ftab.on {
  color: #fff; background: var(--grad); border-color: transparent;
  box-shadow: 0 4px 16px rgba(99, 102, 241, .35);
}
.flow-pane { display: none; }
.flow-pane.on { display: flex; flex-direction: column; gap: 14px; }

/* PC 后台浏览器窗口 */
.pcframe {
  width: min(620px, 94vw); margin: 4px auto 0;
  border-radius: 14px; overflow: hidden; background: #0a0716;
  border: 1px solid rgba(139, 92, 246, .45);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .5), 0 0 46px rgba(139, 92, 246, .15);
}
.pc-bar {
  display: flex; align-items: center; gap: 6px;
  padding: 9px 12px; background: rgba(255, 255, 255, .05);
  border-bottom: 1px solid var(--line);
}
.pc-bar i { width: 10px; height: 10px; border-radius: 50%; background: rgba(255, 255, 255, .18); }
.pc-bar i:nth-child(1) { background: #f87171; }
.pc-bar i:nth-child(2) { background: #fbbf24; }
.pc-bar i:nth-child(3) { background: #34d399; }
.pc-bar span { margin-left: 8px; font-size: 11.5px; color: var(--txt2); }
.pc-screen { position: relative; aspect-ratio: 1400 / 755; background: #0d0a1a; }
.pc-screen img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top left;
  opacity: 0; transform: translateX(20px); transition: opacity .45s ease, transform .45s ease;
}
.pc-screen img.on { opacity: 1; transform: none; }
@media (min-width: 768px) {
  .ftab { font-size: 14px; padding: 9px 20px; }
  .flow-pane.on { flex-direction: row; align-items: center; max-width: 1080px; margin: 0 auto; gap: 44px; }
  .pcframe { width: min(700px, 60%); margin: 0; }
}

/* ---------- 关于深度科技（公司实景） ---------- */
.comp { display: flex; flex-direction: column; gap: 14px; }
.comp figure { margin: 0; }
.comp img { width: 100%; border-radius: 14px; border: 1px solid var(--line); display: block; }
.comp figcaption { margin-top: 8px; text-align: center; font-size: 12px; color: var(--txt2); letter-spacing: .02em; }
.comp-main img { border-radius: 16px; }
.comp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.comp-grid figure:nth-child(3) { grid-column: 1 / -1; }
.comp-grid img { aspect-ratio: 4 / 3; object-fit: cover; }
@media (min-width: 768px) {
  .comp { max-width: 1080px; margin: 0 auto; gap: 18px; }
  .comp-grid { grid-template-columns: repeat(3, 1fr); gap: 14px; }
  .comp-grid figure:nth-child(3) { grid-column: auto; }
  .comp-grid img { aspect-ratio: 4 / 3; }
  .comp figcaption { font-size: 13px; }
}

/* 关于深度科技 补强：数据 / 资质 / 部门 / 愿景 */
.comp-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 4px; }
.comp-stat {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 14px 8px; text-align: center;
}
.comp-stat .n {
  font-size: 26px; font-weight: 900; line-height: 1.1;
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.comp-stat .n span { font-size: 16px; font-weight: 800; }
.comp-stat .l { font-size: 12px; color: var(--txt2); margin-top: 4px; }
.comp-badges { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.comp-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(139, 92, 246, .12); border: 1px solid var(--line);
  border-radius: 20px; padding: 7px 14px; font-size: 12px;
  color: #c4b5fd; font-weight: 700;
}
.comp-badge svg { flex-shrink: 0; }
.comp-depts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.comp-dept {
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 6px; text-align: center; font-size: 12.5px; color: var(--txt);
}
.comp-dept .e { display: block; font-size: 22px; margin-bottom: 4px; }
.comp-vision {
  background: linear-gradient(135deg, rgba(139, 92, 246, .12), rgba(236, 72, 153, .08));
  border: 1px solid var(--line); border-radius: 14px; padding: 18px 16px; text-align: center;
}
.comp-vision .v1 { font-size: 15px; font-weight: 800; color: #f1f5f9; line-height: 1.7; }
.comp-vision .v2 { font-size: 12px; color: var(--txt2); margin-top: 10px; }
@media (min-width: 768px) {
  .comp-stats { grid-template-columns: repeat(4, 1fr); gap: 14px; }
  .comp-stat { padding: 18px 12px; }
  .comp-stat .n { font-size: 32px; }
  .comp-stat .n span { font-size: 18px; }
  .comp-depts { grid-template-columns: repeat(7, 1fr); gap: 10px; }
  .comp-vision { padding: 22px 24px; }
  .comp-vision .v1 { font-size: 17px; }
}

/* ---------- 关于页：缩略图一行四列 ---------- */
.thumb-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px;
}
.thumb-grid figure {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 8px; margin: 0;
}
.thumb-grid img {
  width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 8px;
  display: block;
}
.thumb-grid figcaption {
  font-size: 12px; color: var(--txt2); text-align: center; margin-top: 6px;
}

/* ---------- 关于页：地址 / 营业时间卡 ---------- */
.addr-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 4px 4px;
}
.addr-row {
  display: grid; grid-template-columns: 36px auto 1fr; gap: 10px;
  align-items: start; padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}
.addr-row:last-child { border-bottom: none; }
.addr-row .ico { color: #c4b5fd; display: flex; align-items: center; justify-content: center; padding-top: 2px; }
.addr-row .ico svg { display: block; }
.addr-row .lab {
  font-size: 12px; color: var(--txt2); font-weight: 700; padding-top: 4px; min-width: 56px;
}
.addr-row .val { font-size: 13.5px; line-height: 1.7; color: var(--txt); font-weight: 700; }

/* 二维码展示行（关于页联系卡） */
.qr-line { display: flex; align-items: center; gap: 12px; }
.qr-line img {
  width: 84px; height: 84px; border-radius: 10px; flex-shrink: 0;
  border: 1px solid var(--line); background: #fff;
}
.qr-line div { font-size: 13px; font-weight: 700; line-height: 1.6; color: var(--txt); }

@media (min-width: 768px) {
  .thumb-grid { grid-template-columns: repeat(4, 1fr); gap: 12px; }
  .thumb-grid figcaption { font-size: 12.5px; }
  .addr-row { padding: 14px 18px; grid-template-columns: 40px auto 1fr; }
  .addr-row .val { font-size: 14px; }
}

/* ===== 微信咨询悬浮按钮 + 弹窗 ===== */
.wx-fab{position:fixed;left:12px;top:50%;transform:translateY(-50%);z-index:920;
  display:flex;flex-direction:column;align-items:center;gap:7px;padding:13px 10px;
  background:linear-gradient(160deg,rgba(99,102,241,.28),rgba(139,92,246,.16));
  border:1px solid rgba(139,92,246,.5);border-radius:16px;cursor:pointer;
  box-shadow:0 8px 24px rgba(0,0,0,.35);backdrop-filter:blur(8px);transition:.2s}
.wx-fab:hover{border-color:#a78bfa;transform:translateY(-50%) scale(1.06)}
.wx-fab svg{color:#c4b5fd;display:block}
.wx-fab span{writing-mode:vertical-rl;color:#c4b5fd;font-size:12px;font-weight:700;letter-spacing:3px}
.wx-modal{position:fixed;inset:0;z-index:990;display:none;align-items:center;justify-content:center;
  background:rgba(2,6,23,.75);backdrop-filter:blur(6px);padding:20px}
.wx-modal.open{display:flex}
.wx-card{position:relative;background:#1a1533;border:1px solid rgba(139,92,246,.45);border-radius:20px;
  padding:24px 24px 20px;text-align:center;max-width:300px;width:100%;
  box-shadow:0 24px 64px rgba(0,0,0,.5);animation:wxIn .22s ease}
@keyframes wxIn{from{opacity:0;transform:translateY(14px) scale(.96)}to{opacity:1;transform:none}}
.wx-title{font-size:17px;font-weight:800;color:#f1f5f9;margin-bottom:14px}
.wx-card img{display:block;width:100%;border-radius:12px;background:#fff}
.wx-close{position:absolute;top:10px;right:12px;width:30px;height:30px;border:none;border-radius:50%;
  background:rgba(255,255,255,.08);color:#94a3b8;font-size:18px;cursor:pointer;line-height:1}
.wx-close:hover{color:#f1f5f9;background:rgba(255,255,255,.14)}
.wx-card p{margin:14px 0 0;font-size:14px;font-weight:700;color:#e2e8f0;line-height:1.6}
.wx-card p span{font-size:12.5px;font-weight:500;color:#94a3b8}
@media(max-width:640px){.wx-fab{left:8px;padding:10px 8px}}

/* ===== 客户案例：logo 墙 + 系统实拍 ===== */
.club-wall { border: 1px solid var(--line); border-radius: 16px; overflow: hidden; display: block; width: 100%; }
.case-shots { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.case-shots figure { margin: 0; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: var(--card); }
.case-shots img { display: block; width: 100%; height: auto; }
.case-shots figcaption { padding: 9px 12px; font-size: 12.5px; font-weight: 700; color: var(--txt); text-align: center; border-top: 1px solid rgba(139,92,246,.18); }

/* ===== 区块差异化：交替底色面板 ===== */
.section.alt { background: linear-gradient(165deg, rgba(99,102,241,.13), rgba(236,72,153,.05)); border: 1px solid rgba(139,92,246,.28); border-radius: 26px; margin: 24px 8px 0; }
.adv-item .ai svg { display: block; }

/* ===== 案例图墙：桌面端响应式（须在基础规则之后） ===== */
@media (min-width: 768px) {
  .case-shots { grid-template-columns: repeat(3, 1fr); gap: 14px; }
}
@media (min-width: 1280px) {
  .case-shots { grid-template-columns: repeat(6, 1fr); gap: 10px; }
  .case-shots figure { border-radius: 12px; }
  .case-shots figcaption { font-size: 11.5px; padding: 7px 6px; }
}

/* ===== hero 系统样机：三机位首屏（用户+打手抢单+打手中心） ===== */
.hero-device { position: relative; margin: 26px auto 0; padding: 30px 12px 30px; display: flex; justify-content: center; align-items: center; min-height: 680px; }
.hero-device::before { content: ""; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: min(460px, 90vw); height: 90%; background: radial-gradient(50% 60% at 50% 50%, rgba(139,92,246,.55), transparent 70%); filter: blur(12px); z-index: 0; pointer-events: none; }
.hero-main { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: center; }
.hero-main .phone { z-index: 2; box-shadow: 0 28px 70px rgba(0,0,0,.55), 0 0 56px rgba(139,92,246,.28); }
.hero-main .phone-screen img { opacity: 1; transform: none; }
.hero-side { position: absolute; top: 50%; bottom: auto; z-index: 1; display: flex; flex-direction: column; align-items: center; }
.hero-side .phone { width: min(215px, 26vw); opacity: 1; box-shadow: 0 18px 50px rgba(0,0,0,.5), 0 0 36px rgba(139,92,246,.2); }
.hero-side .phone-screen img { opacity: 1; transform: none; }
.hero-side-left { left: clamp(6px, 4.5vw, 80px); transform: translateY(-50%) rotate(-9deg); }
.hero-side-right { right: clamp(6px, 4.5vw, 80px); transform: translateY(-50%) rotate(9deg); }
.hero-tag { margin-top: 10px; padding: 5px 12px; border: 1px solid rgba(139,92,246,.35); border-radius: 999px; background: rgba(13,10,26,.78); color: var(--txt); font-size: 11.5px; font-weight: 700; white-space: nowrap; box-shadow: 0 6px 18px rgba(0,0,0,.35); }
.hero-flash { position: relative; z-index: 1; margin-top: 16px; padding: 8px 18px; border: 1px solid rgba(139,92,246,.42); border-radius: 999px; background: rgba(13,10,26,.72); display: flex; align-items: center; gap: 9px; box-shadow: 0 10px 30px rgba(0,0,0,.35); }
.hero-flash b { font-size: 13px; color: var(--txt); font-weight: 800; }
.hero-flash span { font-size: 12px; color: var(--txt2); }
/* 移动端：只保留中间大样机，隐藏侧机位避免拥挤 */
@media (max-width: 767px) {
  .hero-device { min-height: auto; padding: 22px 12px 30px; }
  .hero-side { display: none; }
}

/* ===== hero 截图条：更多场景一目了然（完整竖屏截图，迷你手机比例） ===== */
.hero-strip { position: relative; z-index: 1; margin: 30px auto 0; max-width: 780px; padding: 0 12px; display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.hero-thumb { display: block; border: 1px solid var(--line); border-radius: 13px; overflow: hidden; background: var(--card); text-decoration: none; transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; box-shadow: 0 10px 26px rgba(0,0,0,.34); }
.hero-thumb:hover { transform: translateY(-4px); border-color: rgba(139,92,246,.65); box-shadow: 0 16px 38px rgba(139,92,246,.26); }
.hero-thumb img { display: block; width: 100%; height: auto; }
.hero-thumb span { display: block; padding: 7px 6px; font-size: 11.5px; font-weight: 700; color: var(--txt); text-align: center; border-top: 1px solid rgba(139,92,246,.22); background: rgba(13,10,26,.62); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
@media (max-width: 767px) {
  .hero-strip { margin-top: 18px; max-width: none; grid-template-columns: none; grid-auto-flow: column; grid-auto-columns: 118px; gap: 10px; justify-content: flex-start; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .hero-strip::-webkit-scrollbar { display: none; }
}

/* ===== 谁在用：人物头像 ===== */
.adv-item .ai.av { width: 52px; height: 52px; border-radius: 50%; padding: 0; overflow: hidden; background: linear-gradient(135deg, rgba(139,92,246,.32), rgba(236,72,153,.18)); box-shadow: 0 6px 18px rgba(139,92,246,.28), inset 0 0 0 2px rgba(139,92,246,.5); }
.adv-item .ai.av img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* —— 文章配图（[img:路径|说明] 语法渲染） —— */
.article-body figure.art-img{margin:16px 0}
.article-body figure.art-img img{width:100%;display:block;border-radius:12px;border:1px solid rgba(139,92,246,.28)}
.article-body figure.art-img figcaption{font-size:11.5px;color:var(--txt2);text-align:center;margin-top:7px}