/* ============================================================
   亮亮智能跟单系统 官网样式 · 暗金主题（与 EA 面板同风格）
   ============================================================ */
:root {
  --bg: #0b0d12;
  --bg2: #10131a;
  --panel: #141824;
  --panel2: #191e2c;
  --gold: #d4af37;
  --gold-bright: #f5d061;
  --gold-dim: rgba(212, 175, 55, .28);
  --gold-glow: rgba(212, 175, 55, .12);
  --text: #ecebe4;
  --muted: #a0a6b4;
  --green: #2ecc71;
  --red: #e74c3c;
  --border: rgba(212, 175, 55, .22);
  --radius: 14px;
  --maxw: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--gold-bright); text-decoration: none; }
img { max-width: 100%; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

/* ---------- 顶部导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(11, 13, 18, .88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 22px;
  height: 62px; display: flex; align-items: center; gap: 26px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; color: var(--text); white-space: nowrap; }
.brand .logo {
  width: 34px; height: 34px; border-radius: 8px; flex: none;
  background: linear-gradient(135deg, #2a2410, #0e0c06);
  border: 1px solid var(--gold);
  display: flex; align-items: center; justify-content: center;
  color: var(--gold-bright); font-size: 15px; font-weight: 800;
}
.brand small { color: var(--gold); font-weight: 600; }
.nav-links { display: flex; gap: 22px; margin-left: auto; flex-wrap: nowrap; }
.nav-links a { color: var(--muted); font-size: 14.5px; transition: color .2s; white-space: nowrap; }
.nav-links a:hover { color: var(--gold-bright); }
.nav-cta {
  background: linear-gradient(135deg, #e8c96a, #b8912b);
  color: #1a1508 !important; font-weight: 700; padding: 8px 18px; border-radius: 8px;
}
.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: 140px 0 80px;
  background:
    radial-gradient(900px 420px at 80% -10%, rgba(212,175,55,.14), transparent 60%),
    radial-gradient(700px 380px at 5% 10%, rgba(46,204,113,.05), transparent 55%),
    linear-gradient(180deg, #0d1017 0%, var(--bg) 70%);
}
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 48px; align-items: center; }
.hero h1 {
  font-size: clamp(30px, 4.4vw, 50px); line-height: 1.25; font-weight: 800; letter-spacing: .5px;
}
.hero h1 .gold {
  background: linear-gradient(120deg, #f5d061 10%, #d4af37 45%, #a8842a 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .sub { margin-top: 18px; color: var(--muted); font-size: 17px; max-width: 560px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.badge {
  border: 1px solid var(--border); background: var(--gold-glow);
  color: var(--gold-bright); font-size: 13px; padding: 6px 14px; border-radius: 999px;
}
.hero-cta { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px; border-radius: 10px; font-size: 15.5px; font-weight: 700;
  transition: transform .15s, box-shadow .2s; border: 1px solid transparent; cursor: pointer;
}
.btn:hover { transform: translateY(-2px); }
.btn-gold {
  background: linear-gradient(135deg, #f0d070, #c39a2e);
  color: #1a1508; box-shadow: 0 8px 26px rgba(212, 175, 55, .28);
}
.btn-ghost { border-color: var(--border); color: var(--gold-bright); background: transparent; }
.btn-ghost:hover { background: var(--gold-glow); }

/* ---------- EA 面板模拟图 ---------- */
.panel-mock-wrap { position: relative; display: flex; justify-content: center; }
.panel-mock {
  width: 100%; max-width: 470px;
  background: linear-gradient(180deg, #101320, #0c0e16);
  border: 2px solid var(--gold);
  border-radius: 10px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, .55), 0 0 0 1px rgba(212,175,55,.15), 0 0 44px rgba(212,175,55,.10);
  padding: 16px 16px 18px;
  font-size: 13px; color: #d9d7cc;
  transform: rotate(.4deg);
}
.pm-title { display: flex; align-items: center; gap: 8px; color: var(--gold-bright); font-weight: 700; font-size: 14px; margin-bottom: 10px; }
.pm-title .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green); }
.pm-row { display: flex; justify-content: space-between; padding: 5px 2px; border-bottom: 1px dashed rgba(212,175,55,.14); }
.pm-row .k { color: var(--muted); }
.pm-up { color: var(--green); font-weight: 700; }
.pm-down { color: var(--red); font-weight: 700; }
.pm-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 5px; margin: 12px 0 10px; }
.pm-cell {
  text-align: center; padding: 5px 0; border-radius: 6px;
  background: #1c2130; border: 1px solid rgba(255,255,255,.05); color: #cfd3dd; font-size: 12px;
}
.pm-cell.on { background: linear-gradient(135deg, #1d7a45, #156238); border-color: #2ecc71; color: #eafff2; font-weight: 700; }
.pm-btns { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.pm-btn { text-align: center; padding: 8px 0; border-radius: 7px; font-weight: 700; font-size: 13px; }
.pm-btn.rev { background: linear-gradient(135deg, #8f2b22, #6e1f18); color: #ffe3de; border: 1px solid #c05045; }
.pm-btn.close { background: #4a1010; color: #ffc9c2; border: 1px solid #7e2c2c; }
.pm-side {
  position: absolute; left: -34px; top: 70px;
  display: flex; flex-direction: column; gap: 6px;
}
.pm-side span {
  width: 26px; height: 26px; border-radius: 6px; background: #1c2130;
  border: 1px solid var(--gold-dim); color: var(--gold-bright);
  display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700;
}
.pm-note { text-align: center; color: var(--muted); font-size: 12px; margin-top: 14px; }

/* ---------- 通用区块 ---------- */
section.block { padding: 84px 0; }
section.block.alt { background: var(--bg2); border-top: 1px solid rgba(212,175,55,.08); border-bottom: 1px solid rgba(212,175,55,.08); }
.sec-head { text-align: center; margin-bottom: 52px; }
.sec-head .eyebrow { color: var(--gold); font-size: 13.5px; letter-spacing: 4px; font-weight: 700; }
.sec-head h2 { font-size: clamp(24px, 3vw, 34px); margin-top: 10px; font-weight: 800; }
.sec-head p { color: var(--muted); margin-top: 12px; max-width: 640px; margin-left: auto; margin-right: auto; }

/* ---------- 卡片 ---------- */
.cards { display: grid; gap: 22px; }
.cards.c2 { grid-template-columns: repeat(2, 1fr); }
.cards.c3 { grid-template-columns: repeat(3, 1fr); }
.cards.c4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: linear-gradient(180deg, var(--panel), #12151f);
  border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 26px;
  transition: transform .18s, border-color .2s, box-shadow .25s;
}
.card:hover { transform: translateY(-4px); border-color: rgba(212,175,55,.5); box-shadow: 0 16px 40px rgba(0,0,0,.4); }
.card .icon {
  width: 46px; height: 46px; border-radius: 12px; margin-bottom: 16px;
  background: var(--gold-glow); border: 1px solid var(--gold-dim);
  display: flex; align-items: center; justify-content: center; font-size: 22px;
}
.card h3 { font-size: 17.5px; margin-bottom: 8px; color: var(--gold-bright); }
.card p, .card li { color: var(--muted); font-size: 14.5px; }
.card ul { list-style: none; margin-top: 6px; }
.card li { padding: 4px 0 4px 20px; position: relative; }
.card li::before { content: "◆"; position: absolute; left: 0; top: 4px; color: var(--gold); font-size: 10px; }

/* ---------- 组合矩阵 ---------- */
.matrix { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.mx-card {
  text-align: center; padding: 30px 16px; border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel), #12151f); border: 1px solid var(--border);
}
.mx-card .pair { font-size: 20px; font-weight: 800; color: var(--gold-bright); letter-spacing: 1px; }
.mx-card .pair .arr { color: var(--green); margin: 0 6px; }
.mx-card p { color: var(--muted); font-size: 13.5px; margin-top: 8px; }

/* ---------- 连接方式 ---------- */
.conn-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.conn-card { background: linear-gradient(180deg, var(--panel), #12151f); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.conn-card .head { padding: 22px 24px 6px; }
.conn-card .tag { display: inline-block; font-size: 12px; color: #1a1508; background: linear-gradient(135deg, #f0d070, #c39a2e); border-radius: 6px; padding: 2px 10px; font-weight: 700; }
.conn-card h3 { margin-top: 10px; font-size: 18px; color: var(--gold-bright); }
.conn-card .body { padding: 12px 24px 24px; color: var(--muted); font-size: 14px; }
.conn-card svg { display: block; width: 100%; height: auto; background: #0d1019; border-top: 1px solid rgba(212,175,55,.1); }

/* ---------- 价格 ---------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
/* 下载中心：两列卡片整体居中（复用 price-card 卡片样式） */
.dl-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px; align-items: stretch;
  max-width: 920px; margin: 0 auto;
}
.dl-grid .price-card { display: flex; flex-direction: column; }
.price-card {
  position: relative; border-radius: 18px; padding: 36px 30px;
  background: linear-gradient(180deg, var(--panel), #12151f); border: 1px solid var(--border);
  display: flex; flex-direction: column;
}
.price-card.hot {
  border: 1.5px solid var(--gold);
  background: linear-gradient(180deg, #1a1710, #12100a);
  box-shadow: 0 18px 50px rgba(212,175,55,.12);
}
.price-card .flag {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, #f0d070, #c39a2e); color: #1a1508;
  font-size: 12.5px; font-weight: 800; padding: 4px 16px; border-radius: 999px; white-space: nowrap;
}
.price-card .name { color: var(--muted); font-size: 15px; }
.price-card .amount { margin: 10px 0 2px; font-size: 44px; font-weight: 800; color: var(--gold-bright); }
.price-card .amount small { font-size: 16px; color: var(--muted); font-weight: 500; }
.price-card .per { color: var(--muted); font-size: 13.5px; margin-bottom: 18px; }
.price-card ul { list-style: none; margin: 6px 0 26px; flex: 1; }
.price-card li { color: var(--muted); font-size: 14px; padding: 6px 0 6px 24px; position: relative; }
.price-card li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 800; }
.price-card .btn { justify-content: center; }
.price-note { text-align: center; color: var(--muted); font-size: 13.5px; margin-top: 26px; }
.price-note b { color: var(--gold-bright); }

/* ---------- FAQ ---------- */
.faq { max-width: 860px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: 12px; margin-bottom: 14px; background: var(--panel); overflow: hidden; }
.faq-item summary { cursor: pointer; padding: 18px 22px; font-weight: 700; font-size: 15.5px; color: var(--text); list-style: none; display: flex; align-items: center; gap: 12px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before { content: "Q"; flex: none; width: 26px; height: 26px; border-radius: 7px; background: var(--gold-glow); border: 1px solid var(--gold-dim); color: var(--gold-bright); font-size: 13px; display: flex; align-items: center; justify-content: center; font-weight: 800; }
.faq-item .ans { padding: 0 22px 20px 60px; color: var(--muted); font-size: 14.5px; }
.faq-item .ans b { color: var(--gold-bright); }

/* ---------- CTA ---------- */
.cta-band {
  padding: 70px 0; text-align: center;
  background:
    radial-gradient(600px 300px at 50% 0%, rgba(212,175,55,.14), transparent 65%),
    var(--bg2);
  border-top: 1px solid var(--border);
}
.cta-band h2 { font-size: clamp(24px, 3vw, 34px); }
.cta-band p { color: var(--muted); margin: 14px auto 30px; max-width: 560px; }
.wx-num {
  display: inline-block; margin-top: 8px; padding: 12px 34px; border-radius: 12px;
  border: 1.5px dashed var(--gold); color: var(--gold-bright); font-size: 22px; font-weight: 800; letter-spacing: 2px;
  background: var(--gold-glow);
}

/* ---------- 表格（使用说明） ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; background: var(--panel); }
table.tb { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 640px; }
table.tb th { background: rgba(212,175,55,.1); color: var(--gold-bright); text-align: left; padding: 13px 16px; font-size: 13.5px; letter-spacing: .5px; white-space: nowrap; }
table.tb td { padding: 12px 16px; border-top: 1px solid rgba(255,255,255,.05); color: var(--muted); vertical-align: top; }
table.tb td:first-child { color: var(--text); font-weight: 600; white-space: nowrap; }
table.tb td .tip { color: var(--gold-bright); }

/* ---------- 步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; counter-reset: step; }
.step { background: linear-gradient(180deg, var(--panel), #12151f); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 26px; position: relative; }
.step .no {
  width: 40px; height: 40px; border-radius: 50%; margin-bottom: 14px;
  background: linear-gradient(135deg, #f0d070, #c39a2e); color: #1a1508;
  display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 18px;
}
.step h3 { font-size: 17px; color: var(--gold-bright); margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 14.5px; }
.step code, .ans code {
  background: #0d1019; border: 1px solid rgba(212,175,55,.2); color: var(--gold-bright);
  border-radius: 5px; padding: 1px 7px; font-size: 13px; font-family: Consolas, monospace;
}

/* ---------- 提示框 ---------- */
.notice {
  border: 1px solid var(--gold-dim); border-left: 4px solid var(--gold);
  background: var(--gold-glow); border-radius: 10px; padding: 16px 20px;
  color: var(--text); font-size: 14.5px; margin: 20px 0;
}
.notice.warn { border-color: rgba(231,76,60,.5); border-left-color: var(--red); background: rgba(231,76,60,.08); }
.notice b { color: var(--gold-bright); }
.notice.warn b { color: #ff9c90; }

/* ---------- 页脚 ---------- */
footer { border-top: 1px solid var(--border); background: #080a0e; padding: 46px 0 30px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 34px; margin-bottom: 30px; }
.foot-grid h4 { color: var(--gold-bright); font-size: 15px; margin-bottom: 12px; }
.foot-grid p, .foot-grid a { color: var(--muted); font-size: 13.5px; display: block; padding: 3px 0; }
.foot-grid a:hover { color: var(--gold-bright); }
.foot-bottom { border-top: 1px solid rgba(255,255,255,.06); padding-top: 20px; color: #6b7280; font-size: 12.5px; line-height: 1.9; }

/* ---------- 页面头（guide） ---------- */
.page-head { padding: 130px 0 50px; background: linear-gradient(180deg, #0d1017, var(--bg)); border-bottom: 1px solid rgba(212,175,55,.08); }
.page-head h1 { font-size: clamp(26px, 3.4vw, 38px); }
.page-head p { color: var(--muted); margin-top: 12px; }
.crumb { font-size: 13.5px; color: var(--muted); margin-bottom: 14px; }
.crumb a { color: var(--gold); }

.doc-sec { padding: 54px 0 6px; }
.doc-sec h2 { font-size: 24px; color: var(--gold-bright); margin-bottom: 6px; display: flex; align-items: center; gap: 12px; }
.doc-sec h2 .idx { font-size: 14px; color: #1a1508; background: linear-gradient(135deg, #f0d070, #c39a2e); border-radius: 8px; padding: 3px 12px; font-weight: 800; }
.doc-sec .lead { color: var(--muted); margin-bottom: 22px; font-size: 14.5px; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .panel-mock-wrap { order: -1; }
  .cards.c3, .cards.c4, .conn-grid, .price-grid, .matrix, .steps { grid-template-columns: repeat(2, 1fr); }
  .dl-grid { max-width: 100%; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .pm-side { left: -30px; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-toggle {
    display: block; margin-left: auto; background: none; border: 1px solid var(--border);
    color: var(--gold-bright); border-radius: 8px; padding: 6px 12px; font-size: 14px; cursor: pointer;
  }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute; top: 62px; left: 0; right: 0;
    background: rgba(11,13,18,.97); border-bottom: 1px solid var(--border); padding: 16px 22px; gap: 14px;
  }
  .cards.c2, .cards.c3, .cards.c4, .conn-grid, .price-grid, .matrix, .steps { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
  section.block { padding: 60px 0; }
  .hero { padding: 110px 0 60px; }
  .pm-side { display: none; }
}