/* ============================================================
   V8娱乐 · 云栖绘卷
   第二层：外壳（顶栏 / 抽屉导航 / 按钮 / 页脚 / 面包屑）
   ============================================================ */

/* 顶栏 ---------------------------------------------------------- */
.cw-head {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(248, 244, 252, 0.82);
  -webkit-backdrop-filter: saturate(150%) blur(16px);
  backdrop-filter: saturate(150%) blur(16px);
  border-bottom: 1px solid var(--cw-line-soft);
}

.cw-head__bar {
  display: flex;
  align-items: center;
  gap: 20px;
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding: 12px var(--cw-gutter);
}

.cw-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}

.cw-brand__mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--cw-grad-ink);
  color: #fff;
  font-family: var(--cw-serif);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  box-shadow: var(--cw-shadow-xs);
  overflow: hidden;
}

.cw-brand__mark::after {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: 13px;
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.cw-brand__mark i {
  position: absolute;
  right: -8px;
  bottom: -10px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(154, 124, 255, 0.95), rgba(255, 138, 92, 0.5));
  filter: blur(2px);
}

.cw-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.cw-brand__text b {
  font-family: var(--cw-serif);
  font-size: 19px;
  letter-spacing: 0.06em;
}

.cw-brand__text i {
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cw-faint);
}

.cw-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-inline: auto;
}

.cw-nav a {
  position: relative;
  padding: 9px 13px;
  border-radius: var(--cw-r-pill);
  font-size: 14px;
  color: var(--cw-ink-2);
  white-space: nowrap;
  transition: background var(--cw-dur), color var(--cw-dur);
}

.cw-nav a:hover {
  background: rgba(108, 79, 242, 0.09);
  color: var(--cw-iris-deep);
}

.cw-nav a.is-active {
  background: var(--cw-cloud);
  color: var(--cw-iris-deep);
  font-weight: 600;
  box-shadow: var(--cw-shadow-xs);
}

.cw-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 14px;
  height: 2px;
  border-radius: 2px;
  background: var(--cw-grad);
  transform: translateX(-50%);
}

.cw-head__act {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
}

.cw-head__trace {
  height: 2px;
  width: 100%;
  background: transparent;
  overflow: hidden;
}

.cw-head__trace i {
  display: block;
  height: 100%;
  width: 100%;
  background: var(--cw-grad);
  transform: scaleX(var(--cw-progress, 0));
  transform-origin: 0 50%;
  transition: transform 0.12s linear;
}

.cw-burger {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--cw-line);
  border-radius: 13px;
  background: var(--cw-cloud);
  cursor: pointer;
}

.cw-burger span {
  position: absolute;
  left: 50%;
  width: 18px;
  height: 1.6px;
  border-radius: 2px;
  background: var(--cw-ink);
  transform: translateX(-50%);
  transition: transform var(--cw-dur), opacity var(--cw-dur);
}

.cw-burger span:nth-child(1) {
  top: 16px;
}

.cw-burger span:nth-child(2) {
  top: 21.5px;
}

.cw-burger span:nth-child(3) {
  top: 27px;
}

.cw-head.is-open .cw-burger span:nth-child(1) {
  transform: translate(-50%, 5.5px) rotate(45deg);
}

.cw-head.is-open .cw-burger span:nth-child(2) {
  opacity: 0;
}

.cw-head.is-open .cw-burger span:nth-child(3) {
  transform: translate(-50%, -5.5px) rotate(-45deg);
}

/* 按钮 ---------------------------------------------------------- */
.cw-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--cw-r-pill);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  white-space: nowrap;
  transition: transform var(--cw-dur) var(--cw-ease), box-shadow var(--cw-dur), background var(--cw-dur), color var(--cw-dur), border-color var(--cw-dur);
}

.cw-btn:hover {
  transform: translateY(-2px);
}

.cw-btn--solid {
  background: var(--cw-grad);
  color: #fff;
  box-shadow: 0 14px 28px -16px rgba(108, 79, 242, 0.85);
}

.cw-btn--solid:hover {
  box-shadow: 0 20px 34px -16px rgba(108, 79, 242, 0.9);
}

.cw-btn--ghost {
  background: rgba(255, 253, 251, 0.7);
  border-color: var(--cw-line-2);
  color: var(--cw-ink);
}

.cw-btn--ghost:hover {
  border-color: var(--cw-iris);
  color: var(--cw-iris-deep);
}

.cw-btn--ink {
  background: var(--cw-ink);
  color: #fdfbff;
}

.cw-btn--ink:hover {
  background: #2b2144;
}

.cw-btn--peach {
  background: linear-gradient(120deg, #ff8a5c, #ffb08a);
  color: #3a1a0c;
}

.cw-btn--sm {
  min-height: 36px;
  padding: 0 14px;
  font-size: 13px;
}

.cw-btn--wide {
  width: 100%;
}

.cw-btn svg {
  width: 16px;
  height: 16px;
}

.cw-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 600;
  color: var(--cw-iris-deep);
}

.cw-link::after {
  content: "→";
  transition: transform var(--cw-dur) var(--cw-ease);
}

.cw-link:hover::after {
  transform: translateX(4px);
}

.cw-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

/* 面包屑 -------------------------------------------------------- */
.cw-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 22px;
  font-size: 12.5px;
  color: var(--cw-faint);
}

.cw-crumb a {
  color: var(--cw-muted);
}

.cw-crumb a:hover {
  color: var(--cw-iris-deep);
}

.cw-crumb span::before {
  content: "/";
  margin-right: 8px;
  opacity: 0.5;
}

/* 页脚 ---------------------------------------------------------- */
.cw-foot {
  margin-top: clamp(56px, 8vw, 110px);
  padding: clamp(40px, 6vw, 72px) 0 26px;
  background: var(--cw-grad-ink);
  color: rgba(255, 253, 251, 0.72);
  border-radius: 44px 44px 0 0;
  overflow: hidden;
}

.cw-foot::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(560px 300px at 88% -10%, rgba(154, 124, 255, 0.34), transparent 68%),
    radial-gradient(520px 280px at 4% 110%, rgba(47, 191, 160, 0.22), transparent 66%);
}

.cw-foot .cw-wrap {
  position: relative;
}

.cw-foot__top {
  display: grid;
  grid-template-columns: 1.5fr 2.2fr;
  gap: clamp(28px, 5vw, 70px);
  padding-bottom: 34px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.cw-foot__brand .cw-brand__text b {
  color: #fff;
}

.cw-foot__brand .cw-brand__text i {
  color: rgba(255, 253, 251, 0.48);
}

.cw-foot__brand p {
  max-width: 34ch;
  margin-top: 16px;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(255, 253, 251, 0.6);
}

.cw-foot__seal {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding: 6px 12px;
  border: 1px solid rgba(224, 172, 60, 0.5);
  border-radius: var(--cw-r-pill);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: #e8c377;
}

.cw-foot__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.cw-foot__col h4 {
  margin-bottom: 14px;
  font-family: var(--cw-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: rgba(255, 253, 251, 0.44);
}

.cw-foot__col a {
  display: block;
  padding: 4px 0;
  font-size: 13.5px;
  color: rgba(255, 253, 251, 0.76);
  transition: color var(--cw-dur), transform var(--cw-dur);
}

.cw-foot__col a:hover {
  color: #fff;
  transform: translateX(3px);
}

.cw-foot__note {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px 40px;
  align-items: start;
  padding-top: 24px;
}

.cw-foot__note p {
  margin: 0;
  max-width: 86ch;
  font-size: 11.5px;
  line-height: 1.9;
  color: rgba(255, 253, 251, 0.42);
}

.cw-foot__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 12px;
  color: rgba(255, 253, 251, 0.4);
}

.cw-foot__legal div {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.cw-foot__legal a:hover {
  color: #fff;
}

/* 响应式 -------------------------------------------------------- */
@media (max-width: 1120px) {
  .cw-nav a {
    padding: 8px 9px;
    font-size: 13px;
  }

  .cw-head__act .cw-btn--ghost {
    display: none;
  }
}

@media (max-width: 960px) {
  .cw-head__bar {
    gap: 12px;
  }

  .cw-burger {
    display: block;
  }

  .cw-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 8px var(--cw-gutter) 18px;
    background: rgba(248, 244, 252, 0.98);
    border-bottom: 1px solid var(--cw-line);
    box-shadow: var(--cw-shadow-sm);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.24s var(--cw-ease), transform 0.24s var(--cw-ease), visibility 0.24s;
  }

  .cw-head.is-open .cw-nav {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .cw-nav a {
    padding: 13px 12px;
    border-radius: var(--cw-r-sm);
    font-size: 15px;
    border-bottom: 1px solid var(--cw-line-soft);
  }

  .cw-nav a.is-active {
    box-shadow: none;
    background: rgba(108, 79, 242, 0.08);
  }

  .cw-nav a.is-active::after {
    display: none;
  }

  .cw-foot__top {
    grid-template-columns: 1fr;
  }

  .cw-foot__note {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .cw-brand__text i {
    display: none;
  }

  .cw-head__act .cw-btn {
    min-height: 38px;
    padding: 0 13px;
    font-size: 12.5px;
  }

  .cw-foot__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .cw-foot {
    border-radius: 28px 28px 0 0;
  }
}