/* ============ 闪耀生存官网 · Apple 风格 ============ */
:root{
  --bg:#f5f5f7;
  --ink:#1d1d1f;
  --ink-2:#6e6e73;
  --blue:#0071e3;
  --blue-dark:#0066cc;
  --card:#ffffff;
  --radius:18px;
  --max:1080px;
}
*{margin:0;padding:0;box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","PingFang SC","Helvetica Neue","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
b{font-weight:600}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(251,251,253,.72);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid rgba(0,0,0,.08);
  transition:background .3s;
}
.nav-inner{
  max-width:var(--max);margin:0 auto;padding:0 22px;height:48px;
  display:flex;align-items:center;gap:28px;
}
.nav-logo{display:flex;align-items:center;gap:9px;color:var(--ink);font-weight:600;font-size:15px}
.nav-logo img{width:26px;height:26px;border-radius:6px;object-fit:cover}
.nav-links{display:flex;gap:26px;margin-left:auto}
.nav-links a{color:rgba(29,29,31,.8);font-size:13px;transition:color .2s}
.nav-links a:hover{color:var(--ink)}
.nav-cta{
  background:var(--blue);color:#fff;font-size:13px;
  padding:5px 14px;border-radius:980px;transition:background .2s;flex-shrink:0;
}
.nav-cta:hover{background:var(--blue-dark)}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;min-height:100vh;
  display:flex;align-items:center;justify-content:center;text-align:center;
  color:#fff;overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background:url(../img/hero-bg.png) center/cover no-repeat;
  filter:blur(2px) brightness(.62) saturate(1.05);
  transform:scale(1.06);
  animation:heroZoom 18s ease-in-out infinite alternate;
}
@keyframes heroZoom{from{transform:scale(1.06)}to{transform:scale(1.14)}}
.hero-content{position:relative;z-index:2;padding:100px 22px 80px;max-width:760px}
.hero-eyebrow{font-size:14px;letter-spacing:.42em;color:rgba(255,255,255,.72);margin-bottom:14px}
.hero h1{
  font-size:clamp(52px,10vw,96px);font-weight:700;letter-spacing:-.02em;
  text-shadow:0 8px 40px rgba(0,0,0,.35);
}
.hero-sub{
  font-size:clamp(17px,2.6vw,23px);font-weight:400;color:rgba(255,255,255,.88);
  margin:18px 0 34px;
}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-hint{margin-top:22px;font-size:14px;color:rgba(255,255,255,.75)}
.hero-hint b{color:#fff}
.hero-scroll{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
  font-size:12px;letter-spacing:.3em;color:rgba(255,255,255,.6);
  animation:float 2.2s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,7px)}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-block;border:none;cursor:pointer;font-family:inherit;
  font-size:16px;padding:12px 28px;border-radius:980px;
  transition:transform .18s,background .2s,box-shadow .2s;
}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 6px 24px rgba(0,113,227,.4)}
.btn-primary:hover{background:var(--blue-dark)}
.btn-ghost{
  background:rgba(255,255,255,.14);color:#fff;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.35);
}
.btn-ghost:hover{background:rgba(255,255,255,.24)}

/* ---------- 数据条 ---------- */
.stats{
  max-width:var(--max);margin:-52px auto 0;position:relative;z-index:5;
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:0 22px;
}
.stat{
  background:var(--card);border-radius:var(--radius);text-align:center;
  padding:22px 10px;box-shadow:0 10px 34px rgba(0,0,0,.07);
}
.stat b{display:block;font-size:26px;letter-spacing:-.02em;color:var(--ink)}
.stat span{font-size:13px;color:var(--ink-2)}

/* ---------- 区块 ---------- */
.section{padding:110px 0}
.section.light{background:var(--bg)}
.section.dark{background:#0b0b0f;color:#f5f5f7}
.section.dark .sec-desc{color:#a1a1a6}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
.wrap.narrow{max-width:760px}
.sec-title{font-size:clamp(32px,5vw,52px);font-weight:700;letter-spacing:-.02em;text-align:center}
.sec-desc{font-size:17px;color:var(--ink-2);text-align:center;margin:12px 0 54px}

/* ---------- 卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{
  background:var(--card);border-radius:var(--radius);padding:30px 26px;
  box-shadow:0 4px 18px rgba(0,0,0,.05);transition:transform .25s,box-shadow .25s;
}
.card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(0,0,0,.1)}
.card-icon{font-size:34px;margin-bottom:14px}
.card h3{font-size:19px;margin-bottom:8px;letter-spacing:-.01em}
.card p{font-size:14.5px;color:var(--ink-2)}

/* ---------- 玩法 ---------- */
.gameplay-list{display:flex;flex-direction:column;gap:14px;max-width:820px;margin:0 auto}
.gp-row{
  display:flex;gap:26px;align-items:flex-start;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius);padding:26px 30px;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  transition:background .25s,transform .25s;
}
.gp-row:hover{background:rgba(255,255,255,.1);transform:translateX(6px)}
.gp-num{
  font-size:30px;font-weight:700;letter-spacing:-.02em;line-height:1.15;color:#8ab4ff;
}
.gp-body h3{font-size:20px;margin-bottom:6px}
.gp-body p{font-size:15px;color:#a1a1a6}

/* ---------- 更新时间线 ---------- */
.timeline{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.tl-item{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--card);border-radius:14px;padding:18px 22px;
  box-shadow:0 3px 14px rgba(0,0,0,.05);
}
.tl-tag{
  flex-shrink:0;font-size:11px;font-weight:700;letter-spacing:.08em;
  padding:3px 10px;border-radius:980px;margin-top:3px;
  background:rgba(0,113,227,.1);color:var(--blue);
}
.tl-item h3{font-size:16.5px}
.tl-item p{font-size:14px;color:var(--ink-2)}

/* ---------- 加入 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:44px}
.step{background:var(--card);border-radius:var(--radius);padding:30px 26px;text-align:center;box-shadow:0 4px 18px rgba(0,0,0,.05)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;font-weight:700;font-size:17px;color:#fff;
  background:var(--blue);margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:6px}
.step p{font-size:13.5px;color:var(--ink-2)}

.ip-card{
  background:#0b0b0f;
  border-radius:var(--radius);padding:30px 34px;color:#f5f5f7;
  display:flex;flex-direction:column;gap:14px;margin-bottom:40px;
}
.ip-row{display:flex;align-items:center;gap:16px;font-size:16px}
.ip-label{width:86px;color:#a1a1a6;font-size:14px;flex-shrink:0}
.ip-row b{font-family:"SF Mono",Menlo,Consolas,monospace;font-size:17px;letter-spacing:.02em}
.copy-btn{
  margin-left:auto;background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.25);
  font-size:12.5px;padding:5px 16px;border-radius:980px;cursor:pointer;font-family:inherit;
  transition:background .2s;
}
.copy-btn:hover{background:rgba(255,255,255,.22)}

.ver-table{max-width:640px;margin:0 auto;background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:0 4px 18px rgba(0,0,0,.05)}
.ver-table table{width:100%;border-collapse:collapse;font-size:14.5px}
.ver-table th{background:rgba(0,0,0,.03);padding:12px 18px;text-align:left;font-weight:600}
.ver-table td{padding:12px 18px;border-top:1px solid rgba(0,0,0,.06)}
.ver-table .ok{color:#28a745;font-weight:600}

/* ---------- 手绘图标 ---------- */
.card-icon svg.hd-icon{
  width:42px;height:42px;color:var(--ink);
  fill:none;stroke:currentColor;stroke-width:2.4;
  stroke-linecap:round;stroke-linejoin:round;
}

/* ---------- Java 1.8 测试标注 ---------- */
.test-tag{font-size:12px;color:var(--ink-2);font-weight:400}

/* ---------- 反馈 ---------- */
.fb-total{text-align:center;font-size:13.5px;color:var(--ink-2);margin:-40px 0 30px}
.fb-total b{color:var(--blue);font-weight:600}
.fb-card{
  background:var(--card);border-radius:var(--radius);padding:30px 32px;
  box-shadow:0 4px 18px rgba(0,0,0,.05);
}
.fb-head{
  display:flex;gap:14px;align-items:center;
  padding-bottom:16px;margin-bottom:16px;border-bottom:1px solid rgba(0,0,0,.07);
}
.fb-head svg.hd-icon{width:34px;height:34px;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.fb-head b{display:block;font-size:15.5px}
.fb-head span{display:block;font-size:12.5px;color:var(--ink-2);margin-top:2px}
.fb-card textarea{
  width:100%;min-height:130px;resize:vertical;border:1px solid rgba(0,0,0,.14);
  border-radius:14px;padding:14px 16px;font-size:15px;font-family:inherit;color:var(--ink);
  outline:none;transition:border .2s,box-shadow .2s;background:#fbfbfd;
}
.fb-card textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(0,113,227,.1)}
.fb-drop{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  margin:16px 0 4px;cursor:pointer;text-align:center;
  border:2px dashed rgba(0,0,0,.22);border-radius:14px;padding:26px 18px;
  transition:border-color .2s,background .2s;
}
.fb-drop:hover,.fb-drop.dragover{border-color:var(--blue);background:rgba(0,113,227,.05)}
.fb-drop input[type=file]{display:none}
.fb-drop-t1{font-size:14px;font-weight:600;color:var(--ink)}
.fb-drop-t2{font-size:12px;color:var(--ink-2)}
.fb-row2{display:flex;align-items:center;gap:14px;margin:14px 0 4px;flex-wrap:wrap}
.fb-contact{
  flex:1;min-width:200px;border:1px solid rgba(0,0,0,.14);border-radius:12px;
  padding:10px 14px;font-size:13.5px;font-family:inherit;outline:none;background:#fbfbfd;
  transition:border .2s,box-shadow .2s;
}
.fb-contact:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(0,113,227,.1)}
.fb-count{font-size:12.5px;color:var(--ink-2);flex-shrink:0}
.fb-preview{display:flex;align-items:center;gap:14px;margin:14px 0 4px}
.fb-preview img{width:76px;height:76px;object-fit:cover;border-radius:12px;border:1px solid rgba(0,0,0,.1)}
.fb-remove{
  border:none;background:rgba(0,0,0,.06);color:var(--ink-2);font-size:12.5px;
  padding:6px 14px;border-radius:980px;cursor:pointer;font-family:inherit;
}
.fb-remove:hover{background:rgba(0,0,0,.12)}
.fb-actions{display:flex;gap:12px;margin-top:18px;flex-wrap:wrap}
.fb-actions .btn{min-width:150px}
.btn-ghost-dark{
  background:transparent;color:var(--ink);border:1px solid rgba(0,0,0,.28);
}
.btn-ghost-dark:hover{background:rgba(0,0,0,.05)}
.fb-status{margin-top:12px;font-size:13.5px;min-height:20px}
.fb-status.ok{color:#28a745}
.fb-status.err{color:#d93025}

/* ---------- 管理员弹窗 ---------- */
.modal{position:fixed;inset:0;z-index:300;display:flex;align-items:center;justify-content:center}
.modal-mask{position:absolute;inset:0;background:rgba(0,0,0,.45);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.modal-box{
  position:relative;z-index:2;background:#fff;border-radius:22px;
  width:min(560px,calc(100vw - 40px));max-height:80vh;overflow:auto;
  padding:34px 32px;box-shadow:0 24px 70px rgba(0,0,0,.3);
}
.modal-box h3{font-size:20px;letter-spacing:-.01em}
.modal-sub{font-size:13.5px;color:var(--ink-2);margin:6px 0 18px}
.modal-close{
  position:absolute;top:14px;right:18px;border:none;background:none;
  font-size:26px;color:var(--ink-2);cursor:pointer;line-height:1;
}
.modal-close:hover{color:var(--ink)}
#fbPassword{
  width:100%;border:1px solid rgba(0,0,0,.15);border-radius:12px;
  padding:12px 16px;font-size:15px;font-family:inherit;outline:none;
  margin-bottom:14px;transition:border .2s,box-shadow .2s;
}
#fbPassword:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(0,113,227,.12)}
#fbListPanel h3{display:flex;align-items:center;justify-content:space-between}
.fb-refresh{
  border:none;background:rgba(0,0,0,.06);color:var(--ink);font-size:12.5px;
  padding:6px 16px;border-radius:980px;cursor:pointer;font-family:inherit;
}
.fb-refresh:hover{background:rgba(0,0,0,.12)}
.fb-empty{font-size:14px;color:var(--ink-2);text-align:center;padding:26px 0}
.fb-item{
  border:1px solid rgba(0,0,0,.08);border-radius:14px;
  padding:14px 18px;margin-top:12px;background:#fbfbfd;
}
.fb-item-head{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--ink-2)}
.fb-item-contact{color:var(--blue)}
.fb-item-text{font-size:14.5px;margin-top:8px;white-space:pre-wrap;word-break:break-word}
.fb-item-img{
  margin-top:10px;max-width:180px;max-height:180px;object-fit:cover;
  border-radius:10px;border:1px solid rgba(0,0,0,.1);cursor:zoom-in;display:block;
}
.fb-item-foot{display:flex;justify-content:flex-end;margin-top:10px}
.fb-del{
  border:1px solid rgba(217,48,37,.4);background:transparent;color:#d93025;font-size:12px;
  padding:4px 14px;border-radius:980px;cursor:pointer;font-family:inherit;
}
.fb-del:hover{background:rgba(217,48,37,.08)}

/* ---------- FAQ ---------- */
.faq-sec{padding-top:0}
details{
  background:var(--card);border-radius:14px;padding:18px 24px;margin-bottom:12px;
  box-shadow:0 3px 14px rgba(0,0,0,.05);cursor:pointer;
}
summary{font-weight:600;font-size:15.5px;list-style:none;position:relative;padding-right:30px}
summary::-webkit-details-marker{display:none}
summary::after{
  content:"+";position:absolute;right:2px;top:-2px;font-size:20px;color:var(--ink-2);
  transition:transform .25s;
}
details[open] summary::after{transform:rotate(45deg)}
details p{margin-top:10px;font-size:14.5px;color:var(--ink-2)}

/* ---------- 页脚 ---------- */
.footer{background:#f5f5f7;text-align:center;padding:70px 0 46px;border-top:1px solid rgba(0,0,0,.08)}
.footer-logo{width:74px;height:74px;border-radius:18px;margin:0 auto 18px;object-fit:cover;box-shadow:0 8px 26px rgba(0,0,0,.15)}
.footer-title{font-size:17px;font-weight:600}
.footer-ip{font-size:14px;color:var(--ink-2);margin:8px 0 16px}
.footer-note{font-size:12px;color:#a1a1a6;max-width:560px;margin:0 auto}

/* ---------- Toast ---------- */
.toast{
  position:fixed;bottom:34px;left:50%;transform:translate(-50%,20px);
  background:rgba(29,29,31,.92);color:#fff;font-size:14px;
  padding:10px 22px;border-radius:980px;opacity:0;pointer-events:none;
  transition:opacity .25s,transform .25s;z-index:200;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- 滚动进场 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:820px){
  .nav-links{display:none}
  .stats{grid-template-columns:repeat(2,1fr);margin-top:-40px}
  .grid-3{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .gp-row{flex-direction:column;gap:8px}
  .section{padding:80px 0}
  .ip-row{flex-wrap:wrap}
  .ip-row b{font-size:15px}
}