/* ==========================================================
   uso-binance.com.cn — 币安官网风格 · 深色黑金
   深色黑金 + 金黄渐变，圆角胶囊、能量卡组、行卡行情板
   ========================================================== */
:root {
  --coal: #181A20;
  --coal-2: #1E2329;
  --coal-3: #2B3139;
  --lava: #F0B90B;
  --amber: #FCD535;
  --ember: #F6465D;
  --cream: #EAECEF;
  --dim: #848E9C;
  --line: #2B3139;
  --up: #0ECB81;
  --down: #F6465D;
  --font-display: "Arial Black", "Microsoft YaHei", -apple-system, sans-serif;
  --font-num: "Consolas", "DIN Alternate", monospace;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  background: var(--coal);
  color: var(--cream);
  font-family: -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px; line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
::selection { background: rgba(240, 185, 11, .35); }

/* ---------- 顶部橙色通告条 ---------- */
.heat-top {
  background: linear-gradient(90deg, #FCD535, #F0B90B);
  color: #181A20; font-weight: 700; font-size: 12.5px;
}
.heat-top .in {
  max-width: 1240px; margin: 0 auto; padding: 8px 28px;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px;
}

/* ---------- 导航 ---------- */
.lava-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(24, 26, 32, .93); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.lava-nav .in { max-width: 1240px; margin: 0 auto; padding: 0 28px; height: 68px; display: flex; align-items: center; gap: 38px; }
.lava-brand { display: flex; align-items: center; gap: 11px; font-weight: 900; font-size: 19px; letter-spacing: .3px; }
.lava-mark {
  width: 32px; height: 32px; border-radius: 11px 11px 11px 4px;
  background: linear-gradient(150deg, #FCD535, #F0B90B);
  display: grid; place-items: center; color: #181A20; font-weight: 900; font-size: 15px;
  box-shadow: 0 6px 18px rgba(240, 185, 11, .4);
}
.lava-links { display: flex; gap: 4px; flex: 1; }
.lava-links a {
  padding: 9px 17px; font-size: 14px; font-weight: 600; color: var(--dim);
  border-radius: 999px; transition: all .2s;
}
.lava-links a:hover { color: var(--lava); background: rgba(240, 185, 11, .1); }
.lava-links a.on { color: var(--lava); background: rgba(240, 185, 11, .14); font-weight: 800; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px; border-radius: 999px; font-size: 14px; font-weight: 800;
  border: none; cursor: pointer; transition: all .2s; font-family: inherit;
}
.btn-blaze {
  background: linear-gradient(120deg, #FCD535, #F0B90B); color: #181A20;
  box-shadow: 0 10px 26px rgba(240, 185, 11, .34);
}
.btn-blaze:hover { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(240, 185, 11, .46); }
.btn-ash { background: transparent; border: 1px solid var(--line); color: var(--cream); }
.btn-ash:hover { border-color: var(--lava); color: var(--lava); }
.btn-coal { background: #181A20; color: #FCD535; }
.btn-coal:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(11, 14, 17, .4); }
.btn-mini { padding: 9px 19px; font-size: 13px; }

/* ---------- Hero ---------- */
.blaze-hero { position: relative; overflow: hidden; }
.blaze-hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(680px 400px at 86% 16%, rgba(240, 185, 11, .14), transparent 62%),
    radial-gradient(520px 340px at 6% 88%, rgba(252, 213, 53, .08), transparent 62%);
}
.blaze-hero .in {
  position: relative; max-width: 1240px; margin: 0 auto; padding: 84px 28px 70px;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center;
}
.hero-kicker {
  display: inline-flex; align-items: center; gap: 11px;
  font-size: 12px; font-weight: 800; letter-spacing: 2.4px; text-transform: uppercase; color: var(--amber);
}
.hero-kicker::before { content: ""; width: 28px; height: 3px; border-radius: 2px; background: linear-gradient(90deg, #FCD535, #F0B90B); }
.blaze-hero h1 {
  font-family: var(--font-display); font-size: 54px; line-height: 1.12;
  font-weight: 900; letter-spacing: -1px; margin: 20px 0 18px;
}
.blaze-hero h1 .fire {
  background: linear-gradient(120deg, #FCD535, #F0B90B);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.blaze-hero .lede { color: var(--dim); font-size: 16.5px; max-width: 520px; margin-bottom: 32px; }
.hero-btns { display: flex; gap: 14px; margin-bottom: 44px; }
.hero-badges {
  display: grid; grid-template-columns: repeat(3, auto); gap: 0 42px;
  border-top: 1px dashed var(--line); padding-top: 24px; width: fit-content;
}
.hb b { font-family: var(--font-num); font-size: 27px; font-weight: 800; color: var(--lava); display: block; }
.hb span { font-size: 12px; color: var(--dim); }

/* 能量卡组 */
.energy-deck { display: grid; grid-template-columns: 1.08fr .92fr; gap: 16px; }
.pod {
  background: linear-gradient(165deg, var(--coal-2), #14161A);
  border: 1px solid var(--line); border-radius: 20px; padding: 24px;
  transition: border-color .25s;
}
.pod:hover { border-color: rgba(240, 185, 11, .45); }
.pod.big { grid-row: span 2; display: flex; flex-direction: column; }
.pod .pk {
  font-size: 11.5px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--dim);
  margin-bottom: 10px; display: flex; justify-content: space-between;
}
.pod .pv { font-family: var(--font-num); font-size: 30px; font-weight: 800; }
.pod .pd { font-family: var(--font-num); font-size: 13px; font-weight: 700; margin-top: 4px; }
.pod .pd.up { color: var(--up); }
.pod .pd.dn { color: var(--down); }
.spark-warm { height: 68px; margin-top: auto; padding-top: 12px; }
.energy-bars { display: flex; align-items: flex-end; gap: 6px; height: 84px; margin-top: 14px; }
.energy-bars i {
  flex: 1; border-radius: 5px 5px 2px 2px;
  background: linear-gradient(180deg, #FCD535, #F0B90B);
  opacity: .85; animation: glowPulse 2.6s ease-in-out infinite;
}
.energy-bars i:nth-child(2n) { animation-delay: .4s; opacity: .6; }
.energy-bars i:nth-child(3n) { animation-delay: .9s; }
@keyframes glowPulse { 0%, 100% { filter: brightness(1); } 50% { filter: brightness(1.35); } }

/* ---------- 行情跑马灯 ---------- */
.heat-strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #0B0E11; overflow: hidden; }
.heat-rail { display: flex; gap: 46px; padding: 13px 0; width: max-content; animation: lavaRun 38s linear infinite; }
.heat-rail:hover { animation-play-state: paused; }
@keyframes lavaRun { to { transform: translateX(-50%); } }
.heat-cell { white-space: nowrap; font-family: var(--font-num); font-size: 13px; display: inline-flex; gap: 9px; align-items: baseline; }
.heat-cell .n { color: var(--dim); }
.heat-cell .u { color: var(--up); }
.heat-cell .d { color: var(--down); }

/* ---------- 章节 ---------- */
.molten-zone { max-width: 1240px; margin: 0 auto; padding: 78px 28px; }
.zone-lead { margin-bottom: 46px; }
.zone-lead.center { text-align: center; }
.zone-lead .eyebrow { display: block; font-size: 12px; font-weight: 800; letter-spacing: 2.6px; text-transform: uppercase; color: var(--amber); margin-bottom: 12px; }
.zone-lead h2 { font-family: var(--font-display); font-size: 36px; font-weight: 900; letter-spacing: -.8px; margin-bottom: 10px; }
.zone-lead p { color: var(--dim); max-width: 560px; }
.zone-lead.center p { margin: 0 auto; }

/* 核心服务卡 */
.forge-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.forge-card {
  background: var(--coal-2); border: 1px solid var(--line); border-radius: 20px;
  padding: 32px; position: relative; overflow: hidden; transition: all .28s;
}
.forge-card:hover { transform: translateY(-6px); border-color: rgba(240, 185, 11, .5); box-shadow: 0 22px 52px rgba(240, 185, 11, .14); }
.coin-no {
  width: 46px; height: 46px; border-radius: 14px;
  background: rgba(240, 185, 11, .12); border: 1px solid rgba(240, 185, 11, .35);
  display: grid; place-items: center; color: var(--lava);
  font-family: var(--font-num); font-weight: 800; font-size: 17px; margin-bottom: 20px;
}
.forge-card h3 { font-size: 19px; font-weight: 800; margin-bottom: 10px; }
.forge-card p { color: var(--dim); font-size: 13.5px; margin-bottom: 16px; }
.forge-tag { font-family: var(--font-num); font-size: 12.5px; color: var(--amber); border-top: 1px dashed var(--line); padding-top: 14px; }

/* ---------- 行情行卡板 ---------- */
.ore-toolbar { display: flex; gap: 12px; align-items: center; margin-bottom: 18px; flex-wrap: wrap; }
.ore-search {
  flex: 1; min-width: 220px; display: flex; gap: 10px; align-items: center;
  background: var(--coal-2); border: 1px solid var(--line); border-radius: 999px;
  padding: 11px 20px; transition: border-color .2s;
}
.ore-search:focus-within { border-color: var(--lava); }
.ore-search input { flex: 1; background: none; border: none; outline: none; color: var(--cream); font-size: 13.5px; font-family: inherit; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chips button {
  border: 1px solid var(--line); background: none; color: var(--dim);
  border-radius: 999px; padding: 9px 19px; font-size: 12.5px; font-weight: 700;
  cursor: pointer; font-family: inherit; transition: all .2s;
}
.chips button:hover { color: var(--lava); border-color: rgba(240, 185, 11, .5); }
.chips button.on {
  background: linear-gradient(120deg, #FCD535, #F0B90B);
  border-color: transparent; color: #181A20;
}
.ore-board { display: grid; gap: 10px; }
.ore-row {
  display: grid; grid-template-columns: 2.2fr 1.1fr 1fr 1.2fr 1fr;
  align-items: center; gap: 14px;
  background: var(--coal-2); border: 1px solid var(--line); border-radius: 16px;
  padding: 15px 22px; cursor: pointer; transition: all .2s;
}
.ore-row:hover { border-color: rgba(240, 185, 11, .45); transform: translateX(4px); }
.ore-id { display: flex; align-items: center; gap: 12px; min-width: 0; }
.ore-badge { width: 34px; height: 34px; flex: none; border-radius: 10px; display: grid; place-items: center; font-weight: 800; font-size: 12.5px; color: #181A20; }
.ore-id b { display: block; font-size: 14px; }
.ore-id small { color: var(--dim); font-size: 11.5px; }
.ore-price { font-family: var(--font-num); font-size: 15px; font-weight: 700; text-align: right; }
.ore-delta { justify-self: end; font-family: var(--font-num); font-size: 12.5px; font-weight: 700; padding: 5px 13px; border-radius: 999px; }
.delta-pill.up { background: rgba(14, 203, 129, .12); color: var(--up); border: 1px solid rgba(14, 203, 129, .3); }
.delta-pill.dn { background: rgba(246, 70, 93, .12); color: var(--down); border: 1px solid rgba(246, 70, 93, .3); }
.ore-cap { font-family: var(--font-num); font-size: 13px; color: var(--dim); text-align: right; }
.ore-spark { height: 34px; min-width: 70px; }

/* ---------- 统计带 ---------- */
.mega-band { background: linear-gradient(120deg, #2E2408, #1E2329 58%, #2A1F06); border-top: 1px solid rgba(240, 185, 11, .28); border-bottom: 1px solid rgba(240, 185, 11, .28); }
.mega-in { max-width: 1240px; margin: 0 auto; padding: 52px 28px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.mega-cell b {
  display: block; font-family: var(--font-display); font-size: 40px; font-weight: 900; letter-spacing: -.5px;
  background: linear-gradient(120deg, #FCD535, #F0B90B);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.mega-cell span { color: var(--dim); font-size: 13px; }

/* ---------- CTA 亮橙大块 ---------- */
.ignite-wrap { max-width: 1240px; margin: 0 auto; padding: 0 28px; }
.ignite-box {
  background: linear-gradient(120deg, #FCD535, #F0B90B);
  border-radius: 26px; padding: 54px 56px;
  display: grid; grid-template-columns: 1.3fr .7fr; gap: 40px; align-items: center;
  position: relative; overflow: hidden;
}
.ignite-box::before { content: ""; position: absolute; width: 340px; height: 340px; border-radius: 50%; border: 2px solid rgba(24, 26, 32, .16); right: -90px; top: -130px; }
.ignite-box::after { content: ""; position: absolute; width: 480px; height: 480px; border-radius: 50%; border: 2px solid rgba(24, 26, 32, .1); right: -160px; top: -200px; }
.ignite-box h2 { font-family: var(--font-display); font-size: 34px; font-weight: 900; letter-spacing: -.6px; color: #181A20; margin-bottom: 12px; }
.ignite-box p { color: rgba(24, 26, 32, .78); margin-bottom: 26px; font-weight: 500; }
.ignite-box .side { position: relative; z-index: 1; text-align: center; }
.qr-slab { width: 150px; height: 150px; margin: 0 auto 12px; background: #fff; border-radius: 16px; padding: 10px; }

/* ---------- 页脚 ---------- */
.ash-foot { background: #0B0E11; border-top: 1px solid var(--line); margin-top: 88px; }
.ash-in { max-width: 1240px; margin: 0 auto; padding: 56px 28px 30px; }
.ash-cols { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 36px; margin-bottom: 38px; }
.ash-foot h4 { font-size: 13px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--lava); margin-bottom: 16px; }
.ash-foot li { margin-bottom: 9px; }
.ash-foot li a { color: var(--dim); font-size: 13px; transition: color .2s; }
.ash-foot li a:hover { color: var(--lava); }
.ash-blurb { color: var(--dim); font-size: 13px; margin-top: 14px; max-width: 320px; }
.ash-base {
  border-top: 1px solid var(--line); padding-top: 22px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  color: var(--dim); font-size: 12px;
}

/* ---------- 子页头 ---------- */
.page-heat { background: linear-gradient(180deg, rgba(240, 185, 11, .08), transparent); border-bottom: 1px solid var(--line); }
.page-heat .in { max-width: 1240px; margin: 0 auto; padding: 48px 28px 38px; }
.crumb-heat { display: flex; gap: 8px; font-size: 12.5px; color: var(--dim); margin-bottom: 16px; }
.crumb-heat a:hover { color: var(--lava); }
.page-heat h1 { font-family: var(--font-display); font-size: 40px; font-weight: 900; letter-spacing: -.9px; margin-bottom: 8px; }
.page-heat p { color: var(--dim); }

/* ---------- 合约交易 ---------- */
.crater {
  max-width: 1240px; margin: 32px auto 0; padding: 0 28px;
  display: grid; grid-template-columns: 1fr 350px; gap: 20px; align-items: start;
}
.forge-pane {
  position: relative; background: var(--coal-2); border: 1px solid var(--line);
  border-radius: 20px; overflow: hidden;
}
.pane-top { display: flex; align-items: center; gap: 26px; padding: 20px 24px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.pane-top .pair { font-family: var(--font-display); font-size: 21px; font-weight: 900; }
.pane-top .last { font-family: var(--font-num); font-size: 32px; font-weight: 800; }
.pane-top .last.up { color: var(--up); }
.pane-top .last.dn { color: var(--down); }
.pane-top .facts { margin-left: auto; display: flex; gap: 20px; font-size: 12px; color: var(--dim); }
.pane-top .facts b { color: var(--cream); font-family: var(--font-num); font-weight: 700; }
#lavaChart { display: block; width: 100%; }
.range-row { display: flex; gap: 6px; padding: 14px 22px; border-top: 1px solid var(--line); flex-wrap: wrap; }
.range-row button {
  border: 1px solid var(--line); background: none; color: var(--dim);
  border-radius: 999px; padding: 7px 17px; font-size: 12px; font-weight: 700;
  cursor: pointer; font-family: inherit; transition: all .2s;
}
.range-row button:hover { color: var(--lava); }
.range-row button.on { background: rgba(240, 185, 11, .15); border-color: rgba(240, 185, 11, .55); color: var(--lava); }

.crater-side { display: grid; gap: 20px; }
.deal-card { background: var(--coal-2); border: 1px solid var(--line); border-radius: 20px; overflow: hidden; }
.mode-toggle { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 18px; }
.mode-toggle button {
  border: 1px solid var(--line); background: none; color: var(--dim);
  border-radius: 999px; padding: 11px; font-weight: 800; font-size: 13.5px;
  cursor: pointer; font-family: inherit; transition: all .2s;
}
.mode-toggle button.long.on { background: var(--up); border-color: transparent; color: #fff; }
.mode-toggle button.short.on { background: var(--down); border-color: transparent; color: #fff; }
.form-stack { padding: 0 18px 18px; display: grid; gap: 14px; }
.fs-row label { display: block; font-size: 12px; color: var(--dim); margin-bottom: 6px; }
.fs-box {
  display: flex; align-items: center; gap: 8px;
  background: #0B0E11; border: 1px solid var(--line); border-radius: 14px;
  padding: 12px 16px; transition: border-color .2s;
}
.fs-box:focus-within { border-color: var(--lava); }
.fs-box input { flex: 1; background: none; border: none; outline: none; color: var(--cream); font-family: var(--font-num); font-weight: 700; font-size: 14px; }
.fs-box .tag { font-size: 12px; color: var(--dim); }
.amount-quick { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.amount-quick button {
  border: 1px solid var(--line); background: none; color: var(--dim);
  border-radius: 10px; padding: 8px; font-weight: 700; font-size: 12px;
  cursor: pointer; font-family: inherit; transition: all .2s;
}
.amount-quick button:hover { color: var(--lava); border-color: rgba(240, 185, 11, .5); }
.fire-submit {
  width: 100%; border: none; padding: 15px; border-radius: 14px; margin-top: 4px;
  font-size: 15px; font-weight: 900; font-family: inherit; cursor: pointer;
  background: var(--up); color: #fff; transition: all .2s;
}
.fire-submit.short { background: var(--down); color: #fff; }
.fire-submit:hover { filter: brightness(1.07); }
.deal-note { font-size: 11px; color: var(--dim); text-align: center; padding: 12px 0 16px; }

/* 盘口两列 */
.depth-split { background: var(--coal-2); border: 1px solid var(--line); border-radius: 20px; padding: 18px 0; }
.spot-price {
  text-align: center; font-family: var(--font-num); font-size: 22px; font-weight: 800;
  color: var(--lava); padding: 4px 0 14px; border-bottom: 1px dashed var(--line); margin: 0 18px 12px;
}
.depth-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 0 14px; }
.dcol-title { display: flex; justify-content: space-between; font-size: 11.5px; letter-spacing: 1.2px; text-transform: uppercase; color: var(--dim); margin-bottom: 8px; }
.dline {
  position: relative; display: grid; grid-template-columns: 1fr 1fr;
  font-family: var(--font-num); font-size: 11.5px; padding: 4px 10px; border-radius: 8px; overflow: hidden;
}
.dline .fill { position: absolute; top: 2px; bottom: 2px; left: 0; border-radius: 6px; opacity: .14; }
.dline.sell .fill { background: var(--down); }
.dline.buy .fill { background: var(--up); }
.dline.sell .p { color: var(--down); }
.dline.buy .p { color: var(--up); }
.dline .q { text-align: right; color: var(--dim); }

/* ---------- 下载页 ---------- */
.dl-lava {
  max-width: 1240px; margin: 20px auto 0; padding: 0 28px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center;
}
.dl-lava h2 { font-family: var(--font-display); font-size: 40px; font-weight: 900; letter-spacing: -1px; margin-bottom: 16px; }
.dl-lava .lede { color: var(--dim); font-size: 15.5px; margin-bottom: 32px; max-width: 480px; }
.promo-list { display: grid; gap: 14px; margin-bottom: 34px; }
.promo-card {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--coal-2); border: 1px solid var(--line); border-radius: 18px; padding: 20px 22px;
}
.promo-card .p-ic {
  width: 44px; height: 44px; flex: none; border-radius: 14px;
  background: rgba(240, 185, 11, .12); border: 1px solid rgba(240, 185, 11, .32);
  display: grid; place-items: center; color: var(--lava);
}
.promo-card b { display: block; margin-bottom: 3px; }
.promo-card p { color: var(--dim); font-size: 13px; }
.store-row { display: flex; gap: 12px; flex-wrap: wrap; }
.meteor-stage { display: grid; place-items: center; position: relative; }
.meteor-stage .aurora {
  position: absolute; width: 320px; height: 320px; border-radius: 50%;
  background: radial-gradient(circle, rgba(240, 185, 11, .25), transparent 65%); filter: blur(24px);
}
.meteor-phone {
  position: relative; width: 255px; border-radius: 36px; padding: 11px;
  background: linear-gradient(160deg, #2B3139, #181A20);
  border: 1px solid rgba(240, 185, 11, .4);
  box-shadow: 0 44px 90px rgba(0, 0, 0, .6);
}
.meteor-phone .glow-scr { background: linear-gradient(180deg, #1E2329, #181A20); border-radius: 26px; padding: 20px 15px; border: 1px solid var(--line); }
.scr-line { width: 78px; height: 5px; border-radius: 999px; background: #2B3139; margin: 0 auto 16px; }

/* ---------- 响应 ---------- */
@media (max-width: 1080px) {
  .crater { grid-template-columns: 1fr; }
  .blaze-hero .in { grid-template-columns: 1fr; gap: 44px; }
  .ignite-box { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  .lava-links { display: none; }
  .forge-grid { grid-template-columns: 1fr; }
  .mega-in { grid-template-columns: repeat(2, 1fr); }
  .ash-cols { grid-template-columns: 1fr 1fr; }
  .blaze-hero h1 { font-size: 36px; }
  .dl-lava { grid-template-columns: 1fr; }
  .ore-row { grid-template-columns: 1.6fr 1fr 1fr; }
  .ore-row .ore-cap, .ore-row .ore-spark { display: none; }
}
@media (max-width: 600px) {
  .mega-in { grid-template-columns: 1fr; }
  .ash-cols { grid-template-columns: 1fr; }
  .energy-deck { grid-template-columns: 1fr; }
  .pod.big { grid-row: span 1; }
  .hero-badges { gap: 0 24px; }
  .depth-cols { grid-template-columns: 1fr; }
}