/* ============================================================
   小阿卡尔闹麻了 · 自证倒计时
   背景：assets/feichuan.gif
   ============================================================ */

:root{
  --bg:#04060e;
  --cyan:#4ff0ff;
  --magenta:#ff4fa3;
  --amber:#ffd166;
  --ink:#e9f2ff;
  --dim:rgba(233,242,255,.62);
  --line:rgba(79,240,255,.22);
  --panel:rgba(8,14,28,.46);
  --sans:"Segoe UI","Microsoft YaHei","PingFang SC","Hiragino Sans GB",system-ui,sans-serif;
  --mono:ui-monospace,"Cascadia Mono","Consolas","SFMono-Regular",monospace;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

/* ---------- 背景三层 ---------- */

/* 1. 飞船 GIF：固定铺满，像素化放大，缓慢漂移 */
.bg-gif{
  position:fixed;
  inset:-4%;
  z-index:0;
  background-image:url("assets/feichuan.gif");
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  image-rendering:pixelated;          /* 小图放大保持像素风 */
  filter:saturate(1.25) contrast(1.08) brightness(.9);
  opacity:.85;
  transform:scale(1.02);
  animation:drift 26s ease-in-out infinite alternate;
  pointer-events:none;
}
@keyframes drift{
  from{transform:scale(1.02) translate3d(-1.2%, -0.8%, 0)}
  to  {transform:scale(1.09) translate3d(1.2%, 0.9%, 0)}
}

/* 2. 压暗 + 色彩晕染，保证文字能读 */
.bg-veil{
  position:fixed;
  inset:0;
  z-index:1;
  pointer-events:none;
  background:
    radial-gradient(120% 90% at 50% 8%, rgba(79,240,255,.10), transparent 55%),
    radial-gradient(90% 70% at 85% 100%, rgba(255,79,163,.16), transparent 60%),
    linear-gradient(180deg, rgba(4,6,14,.72) 0%, rgba(4,6,14,.42) 38%, rgba(4,6,14,.86) 100%);
}

/* 3. 扫描线质感 */
.bg-scan{
  position:fixed;
  inset:0;
  z-index:2;
  pointer-events:none;
  opacity:.16;
  background:repeating-linear-gradient(
    180deg, rgba(255,255,255,.35) 0 1px, transparent 1px 3px);
  mix-blend-mode:overlay;
}

/* ---------- 版心 ---------- */

.stage{
  position:relative;
  z-index:3;
  min-height:100svh;
  max-width:1080px;
  margin:0 auto;
  padding:clamp(24px,5vh,64px) clamp(18px,4vw,40px) 40px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:clamp(14px,2.4vh,26px);
  text-align:center;
}

.head{display:flex;flex-direction:column;gap:10px;align-items:center}

.kicker{
  margin:0;
  font-size:clamp(11px,1.5vw,13px);
  letter-spacing:.28em;
  text-indent:.28em;
  color:var(--cyan);
  text-transform:uppercase;
  opacity:.9;
}
.kicker::before{
  content:"";
  display:inline-block;
  width:7px;height:7px;
  margin-right:.7em;
  border-radius:50%;
  background:var(--magenta);
  box-shadow:0 0 12px var(--magenta);
  animation:pulse 1.4s ease-in-out infinite;
  vertical-align:1px;
}
@keyframes pulse{50%{opacity:.25;transform:scale(.7)}}

.title{
  margin:0;
  font-size:clamp(38px,9.5vw,96px);
  font-weight:900;
  line-height:1.02;
  letter-spacing:.02em;
  background:linear-gradient(180deg,#ffffff 0%,var(--cyan) 55%,var(--magenta) 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  filter:drop-shadow(0 0 26px rgba(79,240,255,.4)) drop-shadow(0 6px 22px rgba(255,79,163,.28));
}

.sub{
  margin:0;
  font-size:clamp(15px,2.4vw,21px);
  color:var(--dim);
  letter-spacing:.06em;
}
.sub strong{color:var(--ink);font-weight:700}

/* ---------- 主数字：小时 ---------- */

.hours{
  display:flex;
  align-items:baseline;
  gap:clamp(8px,1.6vw,18px);
  padding:clamp(10px,1.8vh,20px) clamp(20px,5vw,54px);
  border:1px solid var(--line);
  border-radius:22px;
  background:var(--panel);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  box-shadow:0 0 0 1px rgba(255,255,255,.04) inset, 0 24px 60px rgba(0,0,0,.5);
}
.hours-num{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(64px,17vw,168px);
  font-weight:800;
  line-height:.94;
  letter-spacing:-.02em;
  color:#fff;
  text-shadow:
    0 0 14px rgba(79,240,255,.9),
    0 0 46px rgba(79,240,255,.5),
    0 0 90px rgba(255,79,163,.35);
}
.hours-unit{
  font-size:clamp(18px,3.4vw,34px);
  font-weight:700;
  color:var(--amber);
  letter-spacing:.1em;
}

/* 数字跳动时的一下“咔哒” */
.hours.tick .hours-num{animation:clack .5s ease-out}
@keyframes clack{
  0%{transform:translateY(-4px) scale(1.012);filter:brightness(1.35)}
  100%{transform:none;filter:none}
}

/* ---------- 天/时/分/秒 ---------- */

.grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(8px,1.6vw,16px);
  width:100%;
  max-width:640px;
}
.cell{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:4px;
  padding:clamp(10px,1.6vh,16px) 6px;
  border:1px solid rgba(255,255,255,.09);
  border-radius:16px;
  background:linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  backdrop-filter:blur(4px);
  -webkit-backdrop-filter:blur(4px);
}
.cell .num{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(22px,5.2vw,44px);
  font-weight:700;
  line-height:1;
  color:var(--cyan);
  text-shadow:0 0 18px rgba(79,240,255,.45);
}
.cell .lab{
  font-size:clamp(11px,1.8vw,14px);
  letter-spacing:.22em;
  text-indent:.22em;
  color:var(--dim);
}

/* ---------- 进度条 ---------- */

.bar-wrap{width:100%;max-width:640px;display:flex;flex-direction:column;gap:8px}
.bar{
  height:10px;
  border-radius:99px;
  overflow:hidden;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.08);
}
.bar i{
  display:block;
  height:100%;
  width:0;
  border-radius:99px;
  background:linear-gradient(90deg,var(--cyan),var(--magenta));
  box-shadow:0 0 18px rgba(255,79,163,.55);
  transition:width .6s cubic-bezier(.2,.8,.2,1);
}
.bar-note{
  margin:0;
  font-size:clamp(11px,1.7vw,13px);
  color:var(--dim);
  letter-spacing:.08em;
  text-align:right;
}

.deadline{
  margin:0;
  font-size:clamp(13px,2vw,16px);
  color:var(--dim);
  letter-spacing:.05em;
}
.deadline strong{color:var(--amber);font-weight:700}

/* ---------- 到点后 ---------- */

.over{
  padding:18px 22px;
  border:1px solid rgba(255,79,163,.45);
  border-radius:18px;
  background:rgba(255,79,163,.1);
  max-width:640px;
}
.over h2{margin:0 0 6px;font-size:clamp(20px,4vw,32px);color:#fff}
.over p{margin:0;color:var(--dim);font-size:clamp(13px,2vw,16px)}

/* ---------- 页脚 ---------- */

.foot{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  justify-content:center;
  font-size:clamp(11px,1.8vw,13px);
  color:rgba(233,242,255,.45);
  letter-spacing:.08em;
}
.foot .dot{opacity:.5}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- 响应式 ---------- */

@media (max-width:520px){
  .grid{grid-template-columns:repeat(2,minmax(0,1fr));max-width:340px}
  .bar-note{text-align:center}
}

/* ---------- 尊重减弱动效偏好 ---------- */

@media (prefers-reduced-motion:reduce){
  .bg-gif{animation:none}
  .kicker::before{animation:none}
  .hours.tick .hours-num{animation:none}
  .bar i{transition:none}
}

/* ---------- 兜底：GIF 加载失败也有星空 ---------- */

body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  background:
    radial-gradient(1px 1px at 12% 22%, #fff, transparent),
    radial-gradient(1px 1px at 68% 12%, #cfe9ff, transparent),
    radial-gradient(1.5px 1.5px at 82% 62%, #fff, transparent),
    radial-gradient(1px 1px at 32% 78%, #bcd7ff, transparent),
    radial-gradient(1px 1px at 52% 44%, #fff, transparent),
    radial-gradient(140% 100% at 50% 0%, #101a33, #04060e 70%);
}