/* K6 · Bento 拼贴模块页 · Signal */
:root {
  --ink: #14212b;
  --muted: #5b6b76;
  --line: #d5dee6;
  --teal: #0d9488;
  --teal-deep: #0f766e;
  --soft: #f1f5f9;
  --white: #fff;
  --fd: "Syne", "Segoe UI", sans-serif;
  --fb: "Manrope", "Segoe UI", sans-serif;
  --max: 1100px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
.z3ca93body {
  margin: 0; font-family: var(--fb); color: var(--ink);
  background: var(--soft); line-height: 1.65; overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
.z3ca93container { width: min(100% - 2rem, var(--max)); margin-inline: auto; }

.z3ca93header { position: sticky; top: 0; z-index: 50; padding: 0.85rem 0; }
.z3ca93floatbar {
  display: flex; align-items: center; gap: 0.75rem;
  background: rgba(255,255,255,0.92); border: 1px solid var(--line);
  border-radius: 16px; padding: 0.55rem 0.85rem; backdrop-filter: blur(10px);
}
.z3ca93logo { font-family: var(--fd); font-weight: 800; font-size: 1.05rem; }
.z3ca93menu { margin-left: auto; display: flex; flex-wrap: wrap; gap: 0.75rem; font-size: 0.9rem; font-weight: 600; color: var(--muted); }
.z3ca93menu a:hover { color: var(--teal); }
.z3ca93menu_btn {
  display: none; margin-left: auto; width: 38px; height: 38px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--soft); cursor: pointer; position: relative;
}
.z3ca93menu_btn::before, .z3ca93menu_btn::after {
  content: ""; position: absolute; left: 10px; right: 10px; height: 2px; background: var(--ink);
}
.z3ca93menu_btn::before { top: 13px; }
.z3ca93menu_btn::after { bottom: 13px; }

.z3ca93btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.75rem 1.15rem; border-radius: 12px; font-weight: 700; border: 1px solid transparent;
}
.z3ca93btn_fill { background: var(--teal); color: #fff; }
.z3ca93btn_fill:hover { background: var(--teal-deep); }
.z3ca93btn_outline { border-color: var(--line); background: var(--white); }
.z3ca93btn_outline:hover { border-color: var(--teal); color: var(--teal); }

.z3ca93banner { padding: 1rem 0 2rem; }
.z3ca93banner_inner {
  display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 1.5rem; align-items: center;
  background: linear-gradient(120deg, #0f766e, #14b8a6); color: #fff;
  border-radius: 22px; padding: 2rem; overflow: hidden;
}
.z3ca93tag {
  margin: 0 0 0.55rem; font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; opacity: 0.9;
}
.z3ca93banner h1 {
  margin: 0 0 0.75rem; font-family: var(--fd); font-size: clamp(1.8rem, 4vw, 2.8rem); line-height: 1.12;
}
.z3ca93banner_desc { margin: 0 0 1.25rem; opacity: 0.92; max-width: 34rem; }
.z3ca93btns { display: flex; flex-wrap: wrap; gap: 0.65rem; }
.z3ca93banner .z3ca93btn_fill { background: #fff; color: var(--teal-deep); }
.z3ca93banner .z3ca93btn_outline { border-color: rgba(255,255,255,0.45); background: transparent; color: #fff; }
.z3ca93banner_img {
  width: 100%; border-radius: 16px; aspect-ratio: 3/2; object-fit: cover;
  border: 1px solid rgba(255,255,255,0.25);
}

.z3ca93ad { padding: 0.7rem 0; }
.z3ca93sec { padding: 3.25rem 0; }
.z3ca93sec_alt { background: var(--white); }
.z3ca93head { margin-bottom: 1.5rem; max-width: 36rem; }
.z3ca93head.z3ca93center { margin-inline: auto; text-align: center; }
.z3ca93head h2 { margin: 0 0 0.45rem; font-family: var(--fd); font-size: clamp(1.5rem, 3vw, 2.1rem); }
.z3ca93head p { margin: 0; color: var(--muted); }

.z3ca93bento {
  display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: minmax(140px, auto); gap: 0.85rem;
}
.z3ca93cell {
  background: var(--white); border: 1px solid var(--line); border-radius: 18px; padding: 1.25rem;
  display: flex; flex-direction: column; gap: 0.55rem;
}
.z3ca93cell h3 { margin: 0; font-family: var(--fd); font-size: 1.15rem; }
.z3ca93cell p { margin: 0; color: var(--muted); font-size: 0.95rem; flex: 1; }
.z3ca93cell_xl { grid-column: span 2; grid-row: span 2; background: #14212b; color: #fff; border-color: #14212b; }
.z3ca93cell_xl p { color: rgba(255,255,255,0.8); }
.z3ca93cell_tall { grid-row: span 2; background: rgba(13, 148, 136, 0.08); border-color: rgba(13, 148, 136, 0.25); }
.z3ca93mini_links { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.z3ca93mini_links a {
  padding: 0.4rem 0.7rem; border-radius: 8px; background: var(--soft); font-weight: 700; font-size: 0.85rem;
}
.z3ca93mini_links a:hover { background: var(--teal); color: #fff; }

.z3ca93path {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  position: relative;
}
.z3ca93path::before {
  content: ""; position: absolute; left: 8%; right: 8%; top: 28px; height: 2px; background: var(--line);
}
.z3ca93path li {
  text-align: center; padding: 0 0.5rem; position: relative;
}
.z3ca93path strong {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 56px; height: 56px; border-radius: 50%; background: var(--teal); color: #fff;
  font-family: var(--fd); font-size: 0.85rem; margin-bottom: 0.75rem; position: relative; z-index: 1;
}
.z3ca93path span { display: block; color: var(--muted); font-size: 0.9rem; }

.z3ca93faq_bento { display: grid; grid-template-columns: 1fr 1fr; gap: 0.85rem; }
.z3ca93faq_bento article {
  background: var(--white); border: 1px solid var(--line); border-radius: 16px; padding: 1.2rem;
}
.z3ca93faq_bento h3 { margin: 0 0 0.4rem; font-family: var(--fd); font-size: 1.05rem; }
.z3ca93faq_bento p { margin: 0; color: var(--muted); }

.z3ca93mega { padding: 2rem 0 3.5rem; }
.z3ca93mega_inner {
  text-align: center; border-radius: 22px; padding: 2.75rem 1.25rem;
  background: linear-gradient(135deg, #14212b, #1e3340); color: #fff;
}
.z3ca93mega_inner h2 { margin: 0 0 0.5rem; font-family: var(--fd); font-size: clamp(1.5rem, 3vw, 2.1rem); }
.z3ca93mega_inner p { margin: 0 0 1.25rem; opacity: 0.88; }
.z3ca93mega_inner .z3ca93btn_fill { background: var(--teal); }

.z3ca93footer { background: #14212b; color: rgba(255,255,255,0.78); padding: 2.75rem 0 2rem; }
.z3ca93flink h3 { margin: 0 0 0.5rem; color: #fff; font-size: 1rem; }
.z3ca93flink ul { list-style: none; margin: 0 0 1.2rem; padding: 0; display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; }
.z3ca93foot_brand { margin: 0.5rem 0; font-family: var(--fd); font-weight: 800; color: #fff; }
.z3ca93foot_note { margin: 0 0 1rem; max-width: 40rem; }
.z3ca93powered { font-size: 0.88rem; opacity: 0.75; }
.z3ca93powered a { color: #fff; }

@media (max-width: 960px) {
  .z3ca93bento { grid-template-columns: 1fr 1fr; }
  .z3ca93cell_xl, .z3ca93cell_tall { grid-column: span 2; grid-row: auto; }
  .z3ca93path { grid-template-columns: 1fr 1fr; gap: 1.25rem; }
  .z3ca93path::before { display: none; }
}
@media (max-width: 720px) {
  .z3ca93menu_btn { display: inline-block; }
  .z3ca93menu {
    display: none; position: absolute; left: 1rem; right: 1rem; top: calc(100% + 0.4rem);
    background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 0.85rem; flex-direction: column;
  }
  .z3ca93menu.is-open { display: flex; }
  .z3ca93floatbar { position: relative; }
  .z3ca93banner_inner, .z3ca93bento, .z3ca93faq_bento, .z3ca93path { grid-template-columns: 1fr; }
  .z3ca93cell_xl, .z3ca93cell_tall { grid-column: auto; }
}