/* ============================================================
   Aurent 交易台 — Bento 网格版式
   非对称网格：卡片跨列/跨行，与 t1/t3 的纵向区块、t4 的表格流均不同
   ============================================================ */

/* ---------- 顶栏 ---------- */
.top { position: sticky; top: 0; z-index: 20; background: rgba(11,18,32,.82); backdrop-filter: blur(12px) saturate(140%); border-bottom: 1px solid var(--edge-2); }
.top-in { display: flex; align-items: center; gap: clamp(12px, 2.6vw, 30px); height: 60px; }
.logo { display: flex; align-items: baseline; gap: 8px; font-size: 18px; font-weight: 700; letter-spacing: .01em; }
.logo i { font-style: normal; color: var(--cyan); }
.logo span { font-family: var(--font-mono); font-size: 10px; letter-spacing: .24em; color: var(--fg-3); text-transform: uppercase; }
.top-nav { display: flex; gap: 22px; font-size: 13.5px; color: var(--fg-2); }
.top-nav a:hover { color: var(--cyan); }
.top-act { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.chip { padding: 6px 12px; border: 1px solid var(--edge); border-radius: 999px; font-family: var(--font-mono); font-size: 11.5px; color: var(--fg-2); }
.chip:hover { border-color: var(--cyan); color: var(--cyan); }
.top .btn { padding: 8px 16px; font-size: 13px; }

/* ---------- Bento 网格 ---------- */
.bento {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  grid-auto-rows: minmax(0, auto);
  gap: clamp(12px, 1.6vw, 18px);
  padding: clamp(24px, 3.4vw, 42px) 0 clamp(34px, 4.6vw, 56px);
}

.card {
  position: relative;
  border: 1px solid var(--edge-2);
  border-radius: var(--r);
  background: linear-gradient(168deg, var(--panel), var(--panel-2));
  padding: 22px;
  overflow: hidden;
  transition: border-color .2s ease, transform .2s ease;
}
.card:hover { border-color: var(--edge); }
.card::after {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(56,189,248,.5), transparent);
  opacity: 0; transition: opacity .24s ease;
}
.card:hover::after { opacity: 1; }

.card h2 { font-size: clamp(22px, 2.6vw, 30px); }
.card h3 { font-size: 16px; }

/* 尺寸档 */
.c2 { grid-column: span 2; }
.c3 { grid-column: span 3; }
.c4 { grid-column: span 4; }
.c6 { grid-column: span 6; }
.r2 { grid-row: span 2; }

/* hero 卡 */
.hero-card { display: flex; flex-direction: column; justify-content: space-between; gap: 26px; padding: clamp(26px, 3vw, 36px); }
.hero-card h1 { font-size: clamp(28px, 3.8vw, 44px); letter-spacing: -.03em; }
.hero-card h1 em { font-style: normal; color: var(--cyan); }
.hero-lede { margin-top: 14px; max-width: 40ch; color: var(--fg-2); font-size: 15px; }
.hero-act { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }

/* 行情卡 */
.rate-list { margin-top: 4px; }
.rate-it { display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--edge-2); }
.rate-it:last-child { border-bottom: 0; }
.rate-s { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 600; }
.rate-s i { width: 24px; height: 24px; display: grid; place-items: center; border-radius: 7px; font-style: normal; font-family: var(--font-mono); font-size: 10.5px; font-weight: 700; color: #06202e; background: linear-gradient(140deg, var(--cyan), #7dd3fc); }
.rate-s small { display: block; font-size: 10.5px; font-weight: 400; color: var(--fg-3); letter-spacing: .05em; }
.rate-r { font-family: var(--font-mono); font-size: 14.5px; }
.rate-c { font-family: var(--font-mono); font-size: 12.5px; font-weight: 600; min-width: 58px; text-align: right; }

/* 统计小卡 */
.stat { display: flex; flex-direction: column; justify-content: space-between; gap: 14px; }
.stat b { font-family: var(--font-mono); font-size: clamp(24px, 2.8vw, 32px); font-weight: 600; letter-spacing: -.02em; }
.stat span { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--fg-3); }

/* 迷你走势 */
.spark { width: 100%; height: 46px; display: block; margin-top: 12px; }
.spark path { fill: none; stroke-width: 2; stroke-linecap: round; }

/* 费率卡 */
.fee-row { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--edge-2); font-size: 14px; }
.fee-row:last-child { border-bottom: 0; }
.fee-row b { font-family: var(--font-mono); color: var(--amber); }
.fee-row small { display: block; font-size: 11px; color: var(--fg-3); }

/* 能力条 */
.bars { margin-top: 16px; }
.bar { margin-top: 14px; }
.bar-h { display: flex; justify-content: space-between; font-size: 12.5px; color: var(--fg-2); }
.bar-t { height: 5px; margin-top: 7px; border-radius: 3px; background: var(--edge-2); overflow: hidden; }
.bar-t i { display: block; height: 100%; border-radius: 3px; background: linear-gradient(90deg, var(--cyan), #7dd3fc); }

/* 清单卡 */
.list-li { display: flex; gap: 10px; padding: 9px 0; font-size: 14px; color: var(--fg-2); border-bottom: 1px solid var(--edge-2); }
.list-li:last-child { border-bottom: 0; }
.list-li::before { content: "\2192"; color: var(--cyan); font-family: var(--font-mono); }

/* 机构 */
.insts { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.inst { padding: 7px 12px; border: 1px solid var(--edge-2); border-radius: 8px; font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .08em; color: var(--fg-2); }

/* FAQ 卡 */
.qa { border-bottom: 1px solid var(--edge-2); }
.qa:last-child { border-bottom: 0; }
.qa-q { display: flex; align-items: center; justify-content: space-between; gap: 14px; width: 100%; padding: 14px 0; text-align: left; font-size: 14.5px; font-weight: 600; }
.qa-q i { font-style: normal; color: var(--cyan); font-family: var(--font-mono); transition: transform .2s ease; }
.qa[data-open="1"] .qa-q i { transform: rotate(45deg); }
.qa-a { display: none; padding: 0 0 15px; font-size: 13.5px; color: var(--fg-2); }
.qa[data-open="1"] .qa-a { display: block; }

/* CTA 卡 */
.cta-card { display: flex; flex-direction: column; justify-content: center; gap: 18px; background: linear-gradient(150deg, #10243c, var(--panel)); }
.cta-card p { color: var(--fg-2); font-size: 14.5px; }

/* 页脚 */
.foot { border-top: 1px solid var(--edge-2); padding: 30px 0 40px; color: var(--fg-3); }
.foot-in { display: flex; flex-wrap: wrap; gap: 12px 26px; justify-content: space-between; font-size: 12.5px; }
.foot a:hover { color: var(--cyan); }
.foot-note { margin-top: 16px; max-width: 80ch; font-size: 11.5px; line-height: 1.8; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .bento { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .c3 { grid-column: span 4; }
  .c2 { grid-column: span 2; }
  .c4 { grid-column: span 4; }
  .top-nav { display: none; }
}
@media (max-width: 700px) {
  .bento { grid-template-columns: 1fr; }
  .c2, .c3, .c4, .c6 { grid-column: span 1; }
  .r2 { grid-row: auto; }
  .hero-card h1 { font-size: clamp(26px, 8vw, 34px); }
}