/* =========================================================
   星诞倒计时 · style.css
   深色渐变 + 玻璃拟态 + 细腻动效
   ========================================================= */

:root{
  --bg-1:#0d0b1f;
  --bg-2:#1a1038;
  --ink:#f4f1ff;
  --ink-2:rgba(244,241,255,.62);
  --ink-3:rgba(244,241,255,.42);
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.09);
  --brd:rgba(255,255,255,.12);
  --pink:#ff7ab8;
  --violet:#a78bfa;
  --cyan:#67e8f9;
  --amber:#ffd166;
  --green:#6ee7b7;
  --danger:#ff6b81;
  --radius:20px;
  --shadow:0 18px 50px rgba(5,3,20,.45);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --g-a:linear-gradient(135deg,#ff7ab8,#a78bfa);
  --g-b:linear-gradient(135deg,#67e8f9,#a78bfa);
  --g-c:linear-gradient(135deg,#ffd166,#ff7ab8);
  --g-d:linear-gradient(135deg,#6ee7b7,#38bdf8);
  --g-e:linear-gradient(135deg,#f472b6,#fbbf24);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  color:var(--ink);
  background:linear-gradient(160deg,var(--bg-1) 0%,var(--bg-2) 55%,#201243 100%);
  background-attachment:fixed;
  min-height:100vh;
  line-height:1.6;
  overflow-x:hidden;
  -webkit-tap-highlight-color:transparent;
}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
input,select,textarea{outline:none}
::selection{background:rgba(255,122,184,.35)}

/* ---------- 背景：极光 + 星尘 ---------- */
#stars{
  position:fixed;inset:0;width:100%;height:100%;
  z-index:0;pointer-events:none;
}
.aurora{
  position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden;
}
.aurora i{
  position:absolute;border-radius:50%;filter:blur(95px);opacity:.5;
  animation:drift 22s ease-in-out infinite alternate;
}
.aurora .b1{width:520px;height:520px;left:-120px;top:-120px;background:radial-gradient(circle,#7c3aed,transparent 70%)}
.aurora .b2{width:460px;height:460px;right:-100px;top:20%;background:radial-gradient(circle,#db2777,transparent 70%);animation-delay:-7s}
.aurora .b3{width:520px;height:520px;left:30%;bottom:-220px;background:radial-gradient(circle,#0ea5e9,transparent 70%);animation-delay:-14s}
@keyframes drift{
  0%{transform:translate(0,0) scale(1)}
  100%{transform:translate(60px,-40px) scale(1.15)}
}

/* ---------- 布局 ---------- */
.wrap{width:min(1080px,100% - 32px);margin-inline:auto}
.main-wrap{padding-top:96px}
.hidden{display:none!important}
main{position:relative;z-index:1;padding-top:96px;padding-bottom:60px}

/* ---------- 顶栏 ---------- */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:20;
  background:rgba(13,11,31,.6);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--brd);
}
.topbar-inner{display:flex;align-items:center;gap:14px;padding-block:12px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);flex-shrink:0}
.brand-badge{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-size:19px;
  background:var(--g-a);box-shadow:0 6px 20px rgba(255,122,184,.35);
  animation:spinSoft 9s linear infinite;
}
.brand-text{font-weight:800;letter-spacing:.5px;font-size:17px;white-space:nowrap}
@keyframes spinSoft{to{filter:hue-rotate(360deg)}}

.tabs{
  display:flex;gap:6px;margin-left:auto;overflow-x:auto;scrollbar-width:none;
  -webkit-overflow-scrolling:touch;flex:1;justify-content:flex-end;
}
.tabs::-webkit-scrollbar{display:none}
.tab{
  padding:8px 14px;border-radius:999px;white-space:nowrap;font-size:13.5px;font-weight:600;
  color:var(--ink-2);transition:.25s;border:1px solid transparent;
}
.tab:hover{color:var(--ink);background:var(--glass)}
.tab.active{
  color:#fff;background:var(--g-a);
  box-shadow:0 6px 18px rgba(255,122,184,.32);
}
.icon-btn{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;font-size:20px;line-height:1;
  color:var(--ink);background:var(--glass);border:1px solid var(--brd);
  display:grid;place-items:center;transition:.25s;
}
.icon-btn:hover{background:var(--glass-2);transform:rotate(90deg)}

/* ---------- 页面切换 ---------- */
.page{display:none}
.page.active{display:block;animation:fadeUp .5s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

.section-head{margin:8px 0 22px}
.section-head h2{font-size:26px;font-weight:800;letter-spacing:.5px;
  background:var(--g-a);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.section-head p{color:var(--ink-2);margin-top:6px;font-size:14px}
.for-name{color:var(--pink);-webkit-text-fill-color:currentColor}
.toolbar{margin-bottom:16px}

/* ---------- 玻璃卡片 ---------- */
.glass{
  background:var(--glass);
  border:1px solid var(--brd);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.card{padding:20px}

/* ---------- 首页 hero ---------- */
.hero{display:grid;gap:24px}
.idol-switch{display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;scrollbar-width:none}
.idol-switch::-webkit-scrollbar{display:none}
.chip{
  flex-shrink:0;display:flex;align-items:center;gap:8px;padding:8px 14px 8px 8px;
  border-radius:999px;border:1px solid var(--brd);background:var(--glass);
  color:var(--ink-2);transition:.25s;font-weight:600;font-size:14px;
}
.chip:hover{transform:translateY(-2px);color:var(--ink)}
.chip.active{color:#fff;background:var(--glass-2);border-color:transparent;box-shadow:0 8px 22px rgba(0,0,0,.3)}
.chip .ava{
  width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-size:16px;
  background:var(--g-a);color:#fff;flex-shrink:0;
}
.chip.add{color:var(--ink-2);justify-content:center;padding:8px 16px;border-style:dashed}

.hero-card{
  position:relative;text-align:center;padding:44px 24px 40px;overflow:hidden;
  background:linear-gradient(180deg,rgba(255,255,255,.1),rgba(255,255,255,.04));
}
.hero-card::before{
  content:"";position:absolute;inset:-40% -20% auto;height:80%;
  background:radial-gradient(ellipse at top,var(--glow,#ff7ab8),transparent 65%);
  opacity:.32;filter:blur(20px);pointer-events:none;
}
.hero-del{
  position:absolute;top:14px;right:16px;z-index:2;width:30px;height:30px;border-radius:10px;
  display:grid;place-items:center;color:var(--ink-3);background:var(--glass);border:1px solid var(--brd);
  font-size:13px;transition:.25s;
}
.hero-del:hover{color:#fff;background:rgba(255,107,129,.35);border-color:transparent}
.hero-avatar{
  width:96px;height:96px;margin:0 auto 18px;border-radius:32px;font-size:46px;
  display:grid;place-items:center;color:#fff;
  background:var(--g-a);box-shadow:0 18px 44px rgba(0,0,0,.35),0 0 0 6px rgba(255,255,255,.06);
  animation:floaty 4.5s ease-in-out infinite;
}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}
.hero-name{font-size:30px;font-weight:900;letter-spacing:1px}
.hero-bd{color:var(--ink-2);margin-top:4px;font-size:14.5px}
.hero-quote{margin-top:14px;color:var(--ink-2);font-size:14.5px;min-height:22px}

/* ---------- 倒计时 ---------- */
.countdown{display:flex;align-items:center;justify-content:center;gap:8px;margin:32px 0 20px;flex-wrap:wrap}
.cd-cell{
  width:clamp(64px,19vw,86px);padding:16px 6px 12px;border-radius:18px;text-align:center;
  background:rgba(0,0,0,.25);border:1px solid var(--brd);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  transition:.3s;
}
.cd-cell:hover{transform:translateY(-4px)}
.cd-cell b{
  display:block;font-size:clamp(30px,9vw,40px);font-weight:900;line-height:1.1;font-variant-numeric:tabular-nums;
  background:var(--g-a);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  filter:drop-shadow(0 0 14px rgba(255,122,184,.45));
}
.cd-cell span{color:var(--ink-3);font-size:12.5px;letter-spacing:2px}
.cd-sep{font-weight:900;font-size:26px;color:var(--ink-3);animation:blink 1.2s ease-in-out infinite}
@keyframes blink{0%,100%{opacity:.25}50%{opacity:1}}

.hero-hint{color:var(--ink-3);font-size:13px;letter-spacing:1px;margin-top:6px}
.celebration{
  display:inline-block;margin-top:14px;padding:10px 20px;border-radius:999px;
  background:linear-gradient(135deg,#ffd166,#ff7ab8);color:#201243;font-weight:800;
  box-shadow:0 10px 30px rgba(255,209,102,.4);animation:celebrate .9s ease infinite alternate;
}
@keyframes celebrate{from{transform:scale(1)}to{transform:scale(1.06)}}

.noidol{padding:60px 20px;text-align:center;color:var(--ink-2)}

/* ---------- 表单 ---------- */
.form{display:grid;gap:12px;margin-bottom:22px;animation:fadeUp .35s ease both}
.form input[type=text],.form input[type=url],.form input[type=number],
.form textarea,.form select{
  width:100%;padding:12px 14px;border-radius:14px;border:1px solid var(--brd);
  background:rgba(0,0,0,.22);color:var(--ink);transition:.25s;font-size:14px;
}
.form textarea{resize:vertical;min-height:88px}
.form input:focus,.form textarea:focus,.form select:focus{
  border-color:var(--pink);box-shadow:0 0 0 3px rgba(255,122,184,.18);
}
.form select option{background:#1a1038;color:var(--ink)}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:center}
.form .row .dim{color:var(--ink-3);font-size:13px}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:12px}
.count{color:var(--ink-3);font-size:12.5px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:11px 20px;border-radius:999px;font-weight:700;font-size:14px;
  transition:.25s;border:1px solid transparent;white-space:nowrap;
}
.btn.primary{background:var(--g-a);color:#fff;box-shadow:0 10px 26px rgba(255,122,184,.32)}
.btn.primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(255,122,184,.45)}
.btn.primary:active{transform:scale(.97)}
.btn.ghost{background:var(--glass);border-color:var(--brd);color:var(--ink)}
.btn.ghost:hover{background:var(--glass-2);transform:translateY(-2px)}
.btn.block{width:100%;margin-top:6px}
.btn.ready{background:var(--g-d);color:#0b1f2a;box-shadow:0 10px 26px rgba(110,231,183,.3)}

/* ---------- 列表卡片 ---------- */
.list{display:grid;gap:14px}
.item{
  padding:18px;border-radius:var(--radius);display:grid;gap:10px;transition:.3s;
  background:var(--glass);border:1px solid var(--brd);
  -webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);
  animation:fadeUp .4s ease both;
}
.item:hover{transform:translateY(-3px);border-color:rgba(255,255,255,.22)}
.item-head{display:flex;align-items:flex-start;gap:12px}
.item-ava{
  width:42px;height:42px;border-radius:14px;flex-shrink:0;display:grid;place-items:center;
  font-size:21px;background:var(--g-a);color:#fff;
}
.item-main{flex:1;min-width:0}
.item-name{font-weight:800;font-size:15.5px}
.item-meta{color:var(--ink-3);font-size:12.5px;margin-top:2px}
.item-desc{color:var(--ink-2);font-size:13.5px}
.item-foot{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:2px}
.tag{
  font-size:11.5px;padding:3px 10px;border-radius:999px;font-weight:700;
  background:rgba(255,255,255,.08);color:var(--ink-2);border:1px solid var(--brd);
}
.tag.pink{background:rgba(255,122,184,.16);color:var(--pink);border-color:transparent}
.tag.green{background:rgba(110,231,183,.14);color:var(--green);border-color:transparent}
.tag.cyan{background:rgba(103,232,249,.14);color:var(--cyan);border-color:transparent}
.tag.amber{background:rgba(255,209,102,.14);color:var(--amber);border-color:transparent}

/* 点赞 */
.like-btn{
  display:inline-flex;align-items:center;gap:5px;padding:6px 12px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid var(--brd);color:var(--ink-2);
  font-size:13px;font-weight:700;transition:.25s;
}
.like-btn:hover{transform:scale(1.06)}
.like-btn.liked{background:rgba(255,107,129,.18);color:var(--danger);border-color:rgba(255,107,129,.4)}
.like-btn .heart{display:inline-block;transition:.3s}
.like-btn.liked .heart{animation:heartPop .4s ease}
@keyframes heartPop{0%{transform:scale(1)}40%{transform:scale(1.5)}100%{transform:scale(1)}}

/* 删除 */
.del-btn{
  width:30px;height:30px;border-radius:10px;display:grid;place-items:center;color:var(--ink-3);
  font-size:13px;transition:.25s;border:1px solid transparent;
}
.del-btn:hover{color:#fff;background:rgba(255,107,129,.3);border-color:rgba(255,107,129,.3)}

/* 已参与 */
.join-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:999px;
  background:var(--glass);border:1px solid var(--brd);color:var(--ink-2);font-size:13px;font-weight:700;transition:.25s}
.join-btn:hover{color:var(--ink)}
.join-btn.done{background:var(--g-d);border-color:transparent;color:#08201a;box-shadow:0 8px 20px rgba(110,231,183,.3)}

/* 活动报名 */
.signup{
  display:inline-flex;align-items:center;gap:6px;padding:9px 18px;border-radius:999px;text-decoration:none;
  background:var(--g-c);color:#201243;font-size:13px;font-weight:800;
  box-shadow:0 8px 22px rgba(255,209,102,.3);transition:.25s;
}
.signup:hover{transform:translateY(-2px) scale(1.03)}
.signup:active{transform:scale(.97)}

.empty{text-align:center;color:var(--ink-3);padding:40px 0;font-size:14px}

/* ---------- 弹窗 ---------- */
.overlay{
  position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:20px;
  background:rgba(8,6,20,.6);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  animation:fadeIn .25s ease both;
}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.modal{
  position:relative;width:min(440px,100%);padding:26px;display:grid;gap:14px;
  animation:popIn .35s cubic-bezier(.2,.9,.3,1.2) both;
}
@keyframes popIn{from{opacity:0;transform:translateY(24px) scale(.94)}to{opacity:1;transform:none}}
.modal h3{font-size:20px;font-weight:800}
.modal label{display:grid;gap:6px;font-size:13px;color:var(--ink-2);font-weight:600}
.modal input{width:100%;padding:11px 13px;border-radius:13px;border:1px solid var(--brd);
  background:rgba(0,0,0,.22);color:var(--ink);font-size:14px;transition:.25s}
.modal input:focus{border-color:var(--pink);box-shadow:0 0 0 3px rgba(255,122,184,.18)}
.modal-close{position:absolute;top:14px;right:14px;width:32px;height:32px;border-radius:10px;
  display:grid;place-items:center;color:var(--ink-3);transition:.25s;border:1px solid transparent}
.modal-close:hover{color:#fff;background:var(--glass-2)}

.swatches{display:flex;gap:12px;margin-top:2px}
.swatch{width:38px;height:38px;border-radius:12px;transition:.25s;border:2px solid transparent;position:relative}
.swatch:hover{transform:scale(1.12)}
.swatch.on{border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.25)}
.swatch.a{background:var(--g-a)}.swatch.b{background:var(--g-b)}
.swatch.c{background:var(--g-c)}.swatch.d{background:var(--g-d)}.swatch.e{background:var(--g-e)}

/* ---------- toast ---------- */
.toast{
  position:fixed;left:50%;bottom:26px;transform:translate(-50%,20px);z-index:200;
  padding:12px 22px;border-radius:999px;background:rgba(20,16,40,.9);border:1px solid var(--brd);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  font-size:14px;font-weight:600;color:var(--ink);opacity:0;pointer-events:none;transition:.35s;
  box-shadow:var(--shadow);max-width:86vw;text-align:center;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- 彩带 ---------- */
.confetti{position:fixed;top:-14px;z-index:90;border-radius:3px;pointer-events:none;animation:fall linear forwards}
@keyframes fall{to{transform:translateY(110vh) rotate(720deg);opacity:.4}}

/* ---------- footer ---------- */
.footer{position:relative;z-index:1;text-align:center;padding:26px 16px 34px;color:var(--ink-3);font-size:12.5px}

/* ---------- 响应式 ---------- */
@media (max-width:720px){
  main{padding-top:88px}
  .topbar-inner{gap:10px;flex-wrap:wrap}
  .tabs{order:3;width:100%;justify-content:flex-start;margin-left:0;padding-bottom:2px}
  .tab{font-size:13px;padding:7px 12px}
  .hero-card{padding:38px 18px 34px}
  .section-head h2{font-size:22px}
  .item{padding:15px}
  .cd-cell{width:clamp(58px,21vw,72px)}
}
@media (max-width:420px){
  .countdown{gap:6px}
  .cd-sep{font-size:20px}
  .brand-text{font-size:15px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001s!important;transition-duration:.001s!important}
}