:root {
  --blue: #1a56e8;
  --blue-bright: #3d7bff;
  --blue-deep: #0b2f8a;
  --navy: #071226;
  --navy-2: #0c1a36;
  --ink: #12203a;
  --paper: #f4f7fb;
  --card: #ffffff;
  --line: rgba(18, 32, 58, 0.1);
  --muted: #5b6b86;
  --text: #12203a;
  --gold: #c9a227;
  --ok: #0f9d6a;
  --wx: #07c160;
  --ali: #1677ff;
  --shadow: 0 18px 50px rgba(7, 18, 38, 0.12);
  --radius: 18px;
  --max: 1160px;
  --mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background: var(--paper);
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.wrap { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(7, 18, 38, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  flex-shrink: 0;
}
.brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}
.brand-name { font-weight: 700; letter-spacing: .04em; }
.brand-name small {
  display: block;
  font-weight: 400;
  font-size: 11px;
  letter-spacing: .14em;
  color: rgba(255,255,255,.55);
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  color: rgba(255,255,255,.78);
  font-size: 14px;
  padding: 8px 12px;
  border-radius: 999px;
}
.nav-links a:hover,
.nav-links a.is-on { color: #fff; background: rgba(255,255,255,.08); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  padding: 11px 20px;
  font-weight: 600;
  font-size: 14px;
  font-family: inherit;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: #1549c9; }
.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,.28);
}
.btn-light { background: #fff; color: var(--blue-deep); }
.menu-btn {
  display: none;
  background: transparent;
  border: 1px solid rgba(255,255,255,.2);
  color: #fff;
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  color: #fff;
  background:
    linear-gradient(115deg, rgba(7,18,38,.88) 0%, rgba(12,47,138,.72) 55%, rgba(26,86,232,.55) 100%),
    url("/home/static/img/office.jpg") center 35% / cover no-repeat;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 80px;
  background: linear-gradient(to bottom, transparent, var(--paper));
}
.hero-inner {
  position: relative;
  z-index: 1;
  padding: 88px 0 110px;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 48px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #d6e4ff;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.16);
  padding: 6px 12px;
  border-radius: 999px;
}
.hero h1 {
  margin: 18px 0 14px;
  font-size: clamp(32px, 4.6vw, 52px);
  line-height: 1.18;
  letter-spacing: -.02em;
}
.hero p.lead {
  margin: 0 0 28px;
  color: rgba(255,255,255,.82);
  font-size: 17px;
  max-width: 540px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-card {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.16);
  backdrop-filter: blur(18px);
  border-radius: 22px;
  padding: 22px;
}
.hero-card h3 { margin: 0 0 14px; font-size: 15px; font-weight: 600; }
.channel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.channel span {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(7,18,38,.35);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 14px;
}
.dot { width: 9px; height: 9px; border-radius: 50%; }
.dot.wx { background: var(--wx); }
.dot.ali { background: #3d8aff; }
.hero-meta {
  margin-top: 14px;
  display: grid;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.78);
}

.stats {
  margin-top: -42px;
  position: relative;
  z-index: 2;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: #fff;
  border-radius: 18px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.stats-grid div {
  padding: 22px 18px;
  text-align: center;
  border-right: 1px solid var(--line);
}
.stats-grid div:last-child { border-right: 0; }
.stats-grid b {
  display: block;
  font-size: 20px;
  color: var(--blue-deep);
}
.stats-grid span { font-size: 13px; color: var(--muted); }

section { padding: 78px 0; }
.sec-h {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 40px;
}
.sec-h .tag {
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .18em;
}
.sec-h h2 { margin: 8px 0 10px; font-size: 32px; letter-spacing: -.02em; }
.sec-h p { margin: 0; color: var(--muted); }

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px 22px;
  box-shadow: 0 8px 28px rgba(7,18,38,.06);
  border: 1px solid var(--line);
}
.card .ico {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: #edf3ff;
  color: var(--blue);
  font-weight: 800;
  margin-bottom: 14px;
}
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.mode {
  background: #fff;
  border-radius: 20px;
  padding: 28px;
  border: 1px solid var(--line);
}
.mode h3 { margin: 0 0 8px; }
.mode p { color: var(--muted); margin: 0 0 16px; }
.mode ul { margin: 0; padding-left: 18px; color: var(--ink); }
.mode.featured {
  background: linear-gradient(180deg, #0c1a36, #0b2f8a);
  color: #fff;
  border: 0;
}
.mode.featured p { color: rgba(255,255,255,.75); }
.mode.featured ul { color: #fff; }

.license {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 28px;
  align-items: center;
}
.license-shot {
  background: #fff;
  border-radius: 20px;
  padding: 12px;
  box-shadow: var(--shadow);
}
.license-shot img {
  width: 100%;
  border-radius: 12px;
  cursor: zoom-in;
}
.kv { display: grid; gap: 10px; }
.kv div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 10px;
  background: #fff;
  border-radius: 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  font-size: 14px;
}
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-weight: 600; }

.about {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 28px;
  align-items: center;
}
.about img {
  width: 100%;
  border-radius: 20px;
  box-shadow: var(--shadow);
  object-fit: cover;
  max-height: 420px;
}
.badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.badge {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
}
.badge em { color: var(--gold); font-style: normal; }

.cta {
  background: linear-gradient(120deg, var(--navy), var(--blue-deep));
  color: #fff;
}
.cta .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.cta h2 { margin: 0 0 6px; }
.cta p { margin: 0; color: rgba(255,255,255,.72); }

.footer {
  background: var(--navy);
  color: rgba(255,255,255,.7);
  padding: 36px 0 22px;
  font-size: 13px;
}
.footer .wrap { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer strong { color: #fff; }
.footer a:hover { color: #fff; }

/* ---------- docs ---------- */
.docs-hero {
  background: linear-gradient(120deg, var(--navy), #0b2f8a);
  color: #fff;
  padding: 48px 0 36px;
}
.docs-hero h1 { margin: 8px 0 8px; font-size: 34px; }
.docs-hero p { margin: 0; color: rgba(255,255,255,.75); }
.docs-layout {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 32px;
  padding: 36px 0 80px;
  align-items: start;
}
.toc {
  position: sticky;
  top: 88px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px 12px;
}
.toc a {
  display: block;
  padding: 7px 10px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 13px;
}
.toc a:hover, .toc a.is-on { background: #edf3ff; color: var(--blue); }
.doc h2 {
  margin: 36px 0 12px;
  padding-top: 8px;
  font-size: 24px;
}
.doc h3 { margin: 26px 0 10px; font-size: 18px; }
.doc p { color: #334155; }
.doc table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  font-size: 14px;
  margin: 12px 0 18px;
}
.doc th, .doc td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
.doc th { background: #eef3fb; font-weight: 650; }
.note {
  background: #eef4ff;
  border-left: 4px solid var(--blue);
  padding: 12px 14px;
  border-radius: 0 12px 12px 0;
  margin: 12px 0 18px;
  color: #1e3a6e;
  font-size: 14px;
}
.warn {
  background: #fff7e8;
  border-left: 4px solid var(--gold);
  padding: 12px 14px;
  border-radius: 0 12px 12px 0;
  margin: 12px 0 18px;
  font-size: 14px;
}
.api-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 16px 0 8px;
}
.api-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}
.api-card .method {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
  color: var(--ok);
}
.api-card code {
  display: block;
  margin: 6px 0;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--blue-deep);
}
.api-card p { margin: 0; font-size: 13px; color: var(--muted); }

.code-tabs {
  background: #1e2430;
  border-radius: 14px;
  overflow: hidden;
  margin: 14px 0 22px;
  box-shadow: 0 12px 30px rgba(7,18,38,.18);
}
.code-tabs-bar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 10px;
  background: #151a24;
  overflow-x: auto;
}
.code-tabs-bar button {
  border: 0;
  background: transparent;
  color: #9aa7bd;
  font-family: inherit;
  font-size: 13px;
  font-weight: 650;
  padding: 7px 12px;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
}
.code-tabs-bar button.is-active {
  background: #2b3446;
  color: #fff;
}
.code-tabs-bar .copy-btn {
  margin-left: auto;
  color: #c9d4e8;
  border: 1px solid #3a455c;
}
.code-tabs pre {
  display: none;
  margin: 0;
  padding: 16px 18px 20px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.65;
  background: transparent !important;
}
.code-tabs pre.is-active { display: block; }
.code-tabs code,
.code-tabs .hljs { font-family: var(--mono); background: transparent !important; }
.doc code:not(.hljs) {
  font-family: var(--mono);
  font-size: 12.5px;
  background: #eef3fb;
  padding: 1px 6px;
  border-radius: 6px;
}
.plain-code {
  background: #1e2430;
  color: #e6edf7;
  border-radius: 12px;
  padding: 14px 16px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13px;
}

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(7,18,38,.86);
  display: none;
  place-items: center;
  z-index: 80;
  padding: 24px;
}
.lightbox.is-open { display: grid; }
.lightbox img { max-width: min(920px, 100%); max-height: 90vh; border-radius: 12px; }

@media (max-width: 960px) {
  .hero-inner, .cards, .split, .license, .about, .docs-layout, .api-grid, .stats-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid div { border-right: 0; border-bottom: 1px solid var(--line); }
  .menu-btn { display: grid; place-items: center; }
  .nav-links {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--navy);
    flex-direction: column;
    padding: 12px 16px 18px;
    align-items: stretch;
  }
  .nav-links.is-open { display: flex; }
  .toc { position: static; }
  .cta .wrap { flex-direction: column; align-items: flex-start; }
  .kv div { grid-template-columns: 1fr; }
}

.nav-auth {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 10px;
  padding-left: 12px;
  border-left: 1px solid rgba(255,255,255,.16);
}
.nav-auth .user-chip {
  color: #fff;
  font-size: 13px;
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.auth-page { min-height: calc(100vh - 180px); padding: 56px 0 80px; }
.auth-card {
  width: min(420px, 100%);
  margin: 0 auto;
  background: #fff;
  border-radius: 20px;
  padding: 32px 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
}
.auth-card h1 { margin: 0 0 8px; font-size: 24px; }
.auth-card .sub { color: var(--muted); margin: 0 0 22px; font-size: 14px; }
.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-size: 13px; font-weight: 650; margin-bottom: 6px; }
.form-row input[type="text"],
.form-row input[type="password"],
.form-row input[type="file"],
.form-row select {
  width: 100%;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0 12px;
  font-family: inherit;
  font-size: 14px;
  background: #fff;
}
.form-row input[type="file"] { height: auto; padding: 8px; }
.form-actions { display: flex; gap: 10px; align-items: center; margin-top: 18px; }
.flash {
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 14px;
  font-size: 14px;
}
.flash.ok { background: #e8f8f0; color: #0b6b45; }
.flash.error { background: #fdecec; color: #b42318; }
.area-select-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.console-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 22px;
}
.console-head h1 { margin: 0 0 4px; }
.console-head p { margin: 0; color: var(--muted); }
.btn-danger { background: #b42318; color: #fff; }
.btn-outline {
  background: #fff;
  color: var(--blue-deep);
  border: 1px solid var(--line);
}
.mer-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 14px; overflow: hidden; }
.mer-table th, .mer-table td { padding: 12px 14px; border-bottom: 1px solid var(--line); text-align: left; font-size: 14px; vertical-align: middle; }
.mer-table th { background: #eef3fb; }
.mer-logo { width: 40px; height: 40px; border-radius: 8px; object-fit: cover; background: #edf3ff; }
.logo-preview { width: 72px; height: 72px; border-radius: 12px; object-fit: cover; margin-top: 8px; background: #edf3ff; }
.role-tag {
  display: inline-block;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #edf3ff;
  color: var(--blue);
  font-weight: 650;
}
.role-tag.admin { background: #fff4d6; color: #8a6a00; }
.empty { text-align: center; color: var(--muted); padding: 40px 16px; background: #fff; border-radius: 14px; }
@media (max-width: 960px) {
  .nav-auth { margin-left: 0; padding-left: 0; border-left: 0; }
  .area-select-row { grid-template-columns: 1fr; }
}