/**
 * @fileoverview 中秋 × 国庆活动专题页样式。
 * 夜空底、满月、灯笼与桂花点缀，红金节日海报风，信息以卡片呈现。
 */

:root {
  --night: #100b1e;
  --night-2: #1b1433;
  --ink: #fff6e8;
  --ink-soft: rgba(255, 246, 232, 0.72);
  --gold: #f6c453;
  --gold-deep: #c9891a;
  --cinnabar: #e23b3b;
  --cinnabar-deep: #9f1d2a;
  --line: rgba(246, 196, 83, 0.28);
  --glass: rgba(255, 246, 232, 0.06);
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "SF Mono", "Consolas", monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 700px at 80% -10%, rgba(246, 196, 83, 0.18), transparent 55%),
    radial-gradient(900px 500px at -10% 20%, rgba(226, 59, 59, 0.16), transparent 50%),
    linear-gradient(180deg, #1a1030 0%, var(--night) 42%, #0c1224 100%);
  line-height: 1.5;
}

a {
  color: var(--gold);
}

/* 夜空装饰 */
.actfest-sky {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.stars {
  position: absolute;
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: #fff;
  box-shadow:
    8vw 12vh 0 #fff,
    18vw 8vh 0 rgba(255, 255, 255, 0.7),
    28vw 22vh 0 #fff6d8,
    40vw 6vh 0 rgba(255, 255, 255, 0.55),
    52vw 18vh 0 #fff,
    63vw 9vh 0 rgba(246, 196, 83, 0.9),
    74vw 24vh 0 #fff,
    86vw 14vh 0 rgba(255, 255, 255, 0.6),
    12vw 38vh 0 rgba(255, 255, 255, 0.45),
    33vw 46vh 0 rgba(246, 196, 83, 0.55),
    70vw 42vh 0 rgba(255, 255, 255, 0.4),
    90vw 36vh 0 #fff,
    22vw 70vh 0 rgba(255, 255, 255, 0.35),
    48vw 78vh 0 rgba(246, 196, 83, 0.4),
    80vw 72vh 0 rgba(255, 255, 255, 0.3);
  animation: twinkle 3.6s ease-in-out infinite;
}

.moon {
  position: absolute;
  top: 4.5rem;
  right: 8vw;
  width: min(240px, 42vw);
  height: min(240px, 42vw);
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 30%, #fffef6 0%, #ffe7a6 26%, #f6c453 58%, #e7a428 100%);
  box-shadow:
    0 0 40px rgba(246, 196, 83, 0.55),
    0 0 120px rgba(246, 196, 83, 0.28),
    inset -22px -14px 28px rgba(176, 104, 16, 0.28);
}

.moon::before,
.moon::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(196, 122, 24, 0.22);
}

.moon::before {
  width: 22%;
  height: 22%;
  top: 38%;
  left: 22%;
}

.moon::after {
  width: 14%;
  height: 14%;
  top: 58%;
  left: 52%;
}

.lantern {
  position: absolute;
  top: 0;
  width: 34px;
  height: 46px;
  border-radius: 17px;
  background: radial-gradient(circle at 50% 35%, #ffb4a2, var(--cinnabar) 62%, var(--cinnabar-deep));
  box-shadow: 0 10px 24px rgba(226, 59, 59, 0.4);
  transform-origin: top center;
  animation: sway 4.8s ease-in-out infinite;
}

.lantern::before {
  content: "";
  position: absolute;
  top: -18px;
  left: 50%;
  width: 2px;
  height: 18px;
  background: var(--gold);
  transform: translateX(-50%);
}

.lantern::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -14px;
  width: 2px;
  height: 14px;
  background: var(--gold);
  transform: translateX(-50%);
  box-shadow: 0 12px 0 -4px var(--gold);
}

.lantern-a { left: 12%; animation-delay: -1s; }
.lantern-b { left: 46%; width: 28px; height: 38px; animation-duration: 5.6s; }
.lantern-c { right: 6%; animation-delay: -2.2s; animation-duration: 4.2s; }

.blossom {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ffd56a;
  box-shadow:
    12px 4px 0 #f6c453,
    -8px 10px 0 #ffe7a6,
    6px 16px 0 #e7a428,
    18px 14px 0 rgba(246, 196, 83, 0.7);
  opacity: 0.85;
}

.blossom-a { left: 6%; top: 28vh; }
.blossom-b { right: 18%; top: 62vh; }
.blossom-c { left: 22%; bottom: 8vh; }

/* 顶栏 */
.actfest-top {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  background: rgba(16, 11, 30, 0.72);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.actfest-top a.back {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.875rem;
  letter-spacing: 0.04em;
}

.actfest-top a.back:hover {
  color: var(--gold);
}

.actfest-badge {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--gold);
  border: 1px solid var(--gold);
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
}

.actfest-wrap {
  position: relative;
  z-index: 1;
  max-width: 68rem;
  margin: 0 auto;
  padding: 1.5rem 1.1rem 4rem;
}

/* 头图 */
.actfest-hero {
  position: relative;
  padding: 2.2rem 0 1.5rem;
  max-width: 28rem;
}

.actfest-kicker {
  margin: 0 0 0.45rem;
  letter-spacing: 0.28em;
  font-size: 0.78rem;
  color: #ffb4a8;
}

.actfest-title {
  margin: 0;
  font-size: clamp(2.6rem, 8vw, 4.4rem);
  line-height: 1.05;
  letter-spacing: 0.08em;
  text-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

.actfest-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.actfest-pills li {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  background: var(--glass);
  border: 1px solid var(--line);
  backdrop-filter: blur(6px);
}

.actfest-pills strong {
  font-size: 1.15rem;
  color: var(--gold);
}

.actfest-pills span {
  font-size: 0.78rem;
  color: var(--ink-soft);
}

/* 双折扣卡 */
.actfest-deals {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
  margin-top: 0.5rem;
}

.deal {
  position: relative;
  overflow: hidden;
  padding: 1.15rem 1.15rem 1.2rem;
  border-radius: 18px;
  background: linear-gradient(160deg, rgba(255, 246, 232, 0.1), rgba(255, 246, 232, 0.04));
  border: 1px solid var(--line);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.22);
}

.deal::after {
  content: "";
  position: absolute;
  width: 140px;
  height: 140px;
  right: -40px;
  top: -50px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(246, 196, 83, 0.28), transparent 70%);
}

.deal-vps::after {
  background: radial-gradient(circle, rgba(226, 59, 59, 0.32), transparent 70%);
}

.deal-kicker {
  margin: 0;
  letter-spacing: 0.22em;
  font-size: 0.78rem;
  color: var(--ink-soft);
}

.deal-rate {
  position: relative;
  margin: 0.15rem 0 0.7rem;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--gold);
}

.deal-rate span {
  font-size: clamp(3.4rem, 10vw, 4.6rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.deal-vps .deal-rate {
  color: #ffd0c8;
}

.actfest-code-row {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  padding: 0.55rem 0.55rem 0.55rem 0.9rem;
  border-radius: 12px;
  background: rgba(8, 6, 16, 0.45);
  border: 1px dashed rgba(246, 196, 83, 0.45);
}

.actfest-code {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  letter-spacing: 0.08em;
  word-break: break-all;
}

.actfest-copy {
  flex: none;
  font-family: inherit;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  padding: 0.45rem 0.9rem;
  border: 0;
  border-radius: 9px;
  cursor: pointer;
  color: #2a1604;
  background: linear-gradient(180deg, #ffe7a6, var(--gold));
}

.actfest-copy:hover {
  filter: brightness(1.05);
}

.actfest-copy:active {
  transform: translateY(1px);
}

.actfest-copy.copied {
  color: #fff;
  background: var(--cinnabar);
}

.deal-link {
  position: relative;
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: #ffd0c8;
  text-underline-offset: 3px;
}

/* 抽奖面板 */
.actfest-panel,
.actfest-rebate {
  margin-top: 0.9rem;
  padding: 1.15rem;
  border-radius: 18px;
  background: rgba(12, 10, 24, 0.55);
  border: 1px solid var(--line);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.18);
}

.panel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  margin-bottom: 0.4rem;
}

.panel-head h2,
.rebate-copy h2,
.prize-group {
  margin: 0;
}

.panel-head h2,
.rebate-copy h2 {
  font-size: 1.35rem;
  letter-spacing: 0.12em;
}

.draw-time {
  margin: 0;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: #2a1604;
  background: linear-gradient(90deg, #ffe7a6, #f6c453 40%, #ff8f7a);
}

.prize-group {
  margin: 1rem 0 0.55rem;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--gold);
  font-weight: 600;
}

.prize-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.prize-grid li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  min-height: 3.1rem;
  padding: 0.55rem 0.75rem;
  border-radius: 12px;
  background: rgba(255, 246, 232, 0.05);
  border: 1px solid rgba(255, 246, 232, 0.08);
}

.prize-rare {
  border-color: rgba(246, 196, 83, 0.45);
  background: linear-gradient(90deg, rgba(246, 196, 83, 0.12), rgba(255, 246, 232, 0.04));
}

.prize-name {
  font-size: 0.92rem;
}

.tag {
  display: inline-block;
  margin-left: 0.35rem;
  padding: 0.05rem 0.35rem;
  border-radius: 999px;
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: #ffd0c8;
  border: 1px solid rgba(255, 176, 160, 0.45);
  vertical-align: 1px;
}

.prize-qty {
  flex: none;
  min-width: 2.6rem;
  text-align: center;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--gold);
}

.rule-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.rule-chips li {
  padding: 0.32rem 0.65rem;
  border-radius: 999px;
  font-size: 0.78rem;
  color: var(--ink-soft);
  background: rgba(255, 246, 232, 0.06);
  border: 1px solid rgba(255, 246, 232, 0.1);
}

.rule-chips a {
  color: var(--gold);
}

.lottery-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #fff8ee;
  background: linear-gradient(135deg, #9f1d2a, #e23b3b 55%, #f6c453);
  box-shadow: 0 10px 24px rgba(226, 59, 59, 0.35);
}

.lottery-btn:hover {
  filter: brightness(1.06);
  color: #fff;
}

.lottery-btn:active {
  transform: translateY(1px);
}

/* 返利 */
.actfest-rebate {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.rebate-seal {
  flex: none;
  width: 6.4rem;
  height: 6.4rem;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #2a1604;
  background:
    radial-gradient(circle at 50% 42%, #fff1c4, #f6c453 46%, #e23b3b 47%, #e23b3b 70%, #f6c453 71%);
  box-shadow: 0 0 0 6px rgba(246, 196, 83, 0.15), 0 12px 28px rgba(226, 59, 59, 0.28);
}

.rebate-seal span {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
}

.rebate-seal strong {
  font-size: 1.45rem;
  line-height: 1;
}

.rebate-copy p {
  margin: 0.35rem 0 0;
  color: var(--ink-soft);
}

.rebate-copy strong {
  color: var(--gold);
}

.actfest-foot {
  margin-top: 1.6rem;
  text-align: center;
  font-size: 0.78rem;
  color: rgba(255, 246, 232, 0.45);
}

@keyframes sway {
  0%, 100% { transform: rotate(-4deg); }
  50% { transform: rotate(5deg); }
}

@keyframes twinkle {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; }
}

@media (min-width: 640px) {
  .actfest-deals {
    grid-template-columns: 1fr 1fr;
  }

  .prize-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 960px) {
  .actfest-wrap {
    padding-top: 2rem;
  }

  .prize-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .moon {
    right: max(6vw, calc(50% - 30rem));
  }
}

@media (max-width: 639px) {
  .moon {
    opacity: 0.45;
    top: 5.5rem;
    right: -12vw;
  }

  .lantern-b,
  .blossom {
    display: none;
  }

  .actfest-rebate {
    flex-direction: column;
    align-items: flex-start;
  }

  .rebate-copy p {
    max-width: 18rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .stars,
  .lantern {
    animation: none;
  }
}