/* ============================================================
   食刻 SHIKE · 关于 / 帮助 子页面
   ============================================================ */

.subpage { background: var(--paper); }
.subpage main { position: relative; z-index: 1; }

.page-hero {
  position: relative;
  overflow: hidden;
  padding: 168px 0 82px;
  background:
    radial-gradient(circle at 84% 18%, rgba(248, 207, 196, 0.55), transparent 34%),
    var(--paper);
}
.page-hero .halftone {
  width: 50%;
  left: auto;
  opacity: 0.45;
  mask-image: radial-gradient(circle at 70% 45%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at 70% 45%, #000, transparent 70%);
}
.page-hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 270px;
  align-items: center;
  gap: 44px;
}
.page-hero .display { margin: 18px 0 20px; max-width: 900px; }
.page-sub {
  max-width: 720px;
  margin: 0;
  font-size: 18px;
  line-height: 1.9;
  color: var(--cocoa-2);
}
.page-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; }
.page-meta span {
  padding: 6px 12px;
  border: 1.5px solid rgba(59, 43, 39, 0.5);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}
.page-mascot {
  width: 100%;
  max-width: 260px;
  justify-self: end;
  animation: mascotBob 2.8s steps(2, end) infinite;
  filter: drop-shadow(0 20px 18px rgba(59, 43, 39, 0.18));
}
.page-mascot svg { width: 100%; height: auto; }

.page-band {
  padding: 72px 0;
  border-top: 1.5px dashed rgba(59, 43, 39, 0.18);
}
.page-band:nth-of-type(even) { background: rgba(255, 253, 251, 0.5); }
.page-band h2 { margin: 12px 0 22px; }
.band-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(30px, 5vw, 80px); align-items: start; }
.band-copy p { max-width: 760px; margin: 0 0 14px; font-size: 15px; line-height: 1.95; color: var(--cocoa-2); }
.band-copy p strong { color: var(--cocoa); }

.story-lead {
  font-family: var(--font-display);
  font-style: oblique;
  font-size: clamp(24px, 2.4vw, 34px);
  line-height: 1.45;
  color: var(--cocoa);
  margin: 0 0 22px;
}

.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 26px; }
.value-card {
  padding: 20px 18px;
  border: var(--border);
  border-radius: 18px;
  background: var(--white);
  box-shadow: 0 5px 0 rgba(59, 43, 39, 0.12);
}
.value-card .num { font-family: var(--font-pixel); font-size: 9px; color: var(--coral-deep); }
.value-card h3 { margin: 10px 0 6px; font-size: 16px; }
.value-card p { margin: 0; font-size: 11px; line-height: 1.75; color: var(--cocoa-2); }

.timeline { margin: 26px 0 0 7px; border-left: 2px solid var(--cocoa); }
.timeline-item { position: relative; padding: 0 0 24px 24px; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 5px;
  width: 10px;
  height: 10px;
  background: var(--coral);
  border: 2px solid var(--cocoa);
}
.timeline-item time { font-family: var(--font-pixel); font-size: 8px; color: var(--coral-deep); }
.timeline-item strong { display: block; margin: 5px 0 3px; font-size: 15px; }
.timeline-item span { font-size: 11px; line-height: 1.7; color: var(--cocoa-2); }

.tech-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.tech-chips span {
  padding: 7px 12px;
  border: 1.5px solid rgba(59, 43, 39, 0.28);
  border-radius: 999px;
  background: var(--white);
  font-size: 11px;
  font-weight: 700;
}

.about-note {
  margin-top: 22px;
  padding: 14px 16px;
  border-left: 3px solid var(--coral);
  background: rgba(248, 207, 196, 0.3);
  font-size: 11px;
  line-height: 1.8;
  color: var(--cocoa-2);
}
.about-note a { color: var(--coral-deep); font-weight: 800; border-bottom: 1.5px solid currentColor; }

.faq-group { margin-top: 30px; }
.faq-group:first-of-type { margin-top: 0; }
.faq-group h2 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-style: oblique;
  font-weight: 400;
  font-size: 28px;
  line-height: 1;
}
.faq-group h2 span { font-family: var(--font-pixel); font-size: 8px; color: var(--coral-deep); }
.faq-item {
  margin-bottom: 8px;
  border: 1.5px solid var(--cocoa);
  border-radius: 14px;
  background: var(--white);
  overflow: hidden;
  box-shadow: 0 3px 0 rgba(59, 43, 39, 0.08);
}
.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 14px;
  font-weight: 800;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-family: var(--font-pixel);
  font-size: 12px;
  color: var(--coral-deep);
  flex-shrink: 0;
}
.faq-item[open] summary { background: var(--paper-2); }
.faq-item[open] summary::after { content: "−"; }
.faq-item p { margin: 0; padding: 0 18px 16px; font-size: 12px; line-height: 1.9; color: var(--cocoa-2); }

.page-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin: 70px auto;
  padding: 36px 40px;
  border: var(--border);
  border-radius: 26px;
  background: linear-gradient(120deg, var(--peach), #ffe9c7);
  box-shadow: var(--shadow-hard);
}
.page-cta h2 {
  margin: 0;
  font-family: var(--font-display);
  font-style: oblique;
  font-weight: 400;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.05;
}
.page-cta p { margin: 8px 0 0; font-size: 11px; color: var(--cocoa-2); }
.page-cta .btn { flex-shrink: 0; }
.page-footer { margin-top: 40px; }

@media (max-width: 960px) {
  .page-hero { padding: 130px 0 62px; }
  .page-hero-grid { grid-template-columns: 1fr; }
  .page-mascot { display: none; }
  .band-grid { grid-template-columns: 1fr; gap: 16px; }
  .value-grid { grid-template-columns: 1fr 1fr; }
  .page-cta { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 600px) {
  .page-hero { padding: 112px 0 48px; }
  .page-hero .display { font-size: clamp(44px, 12vw, 64px); }
  .page-sub { font-size: 15px; }
  .page-meta span { font-size: 9px; }
  .page-band { padding: 52px 0; }
  .value-grid { grid-template-columns: 1fr; }
  .page-cta { margin: 46px auto; padding: 26px 22px; }
  .faq-item summary { font-size: 12px; padding: 13px 14px; }
  .faq-item p { padding: 0 14px 14px; font-size: 11px; }
  .faq-group h2 { font-size: 24px; }
}