:root{
  --main:#6d5dfc;
  --accent:#22d3ee;
  --bg:#0f1020;
  --text:#e8eaf6;
  --line:rgba(232,234,246,.16);
  --line-soft:rgba(232,234,246,.08);
  --muted:rgba(232,234,246,.62);
  --mono:'SFMono-Regular',Consolas,'Liberation Mono',Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
  font-weight:400;
  line-height:1.85;
  letter-spacing:.2px;
  overflow-x:hidden;
}
/* 全屏背景剧照：叠层氛围（纯CSS渐变，不用外部图） */
.bg-stage{
  position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(circle at 18% 12%, rgba(109,93,252,.28), transparent 46%),
    radial-gradient(circle at 84% 8%, rgba(34,211,238,.16), transparent 42%),
    radial-gradient(circle at 60% 96%, rgba(109,93,252,.14), transparent 50%),
    linear-gradient(180deg,#0b0c1a 0%, #0f1020 42%, #0b0c18 100%);
}
.bg-stage::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(232,234,246,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232,234,246,.028) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
}
h1,h2,h3,h4,h5{font-weight:900;letter-spacing:-.5px;line-height:1.3}
a{color:inherit;text-decoration:none}
.mono{font-family:var(--mono);letter-spacing:0}
.container-x{max-width:1240px;margin:0 auto;padding:0 22px}

/* ===== 导航 ===== */
.site-nav{
  position:sticky;top:0;z-index:900;
  background:rgba(15,16,32,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:18px;min-height:70px}
.brand{
  font-weight:900;font-size:1.16rem;letter-spacing:.5px;white-space:nowrap;
  display:inline-flex;align-items:center;gap:9px;color:var(--text);
}
.brand i{color:var(--accent);font-size:1rem}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:wrap}
.nav-links a{
  font-size:.92rem;font-weight:500;color:var(--muted);
  padding:8px 13px;border-radius:8px;transition:color .22s,background .22s;
}
.nav-links a:hover,.nav-links a.on{color:var(--text);background:rgba(109,93,252,.16)}
.nav-toggle{
  display:none;margin-left:auto;background:none;border:1px solid var(--line);
  color:var(--text);border-radius:8px;width:42px;height:38px;font-size:1rem;
}
@media (max-width:900px){
  .nav-toggle{display:block}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:70px;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(13,14,28,.98);border-bottom:1px solid var(--line);
    padding:10px 14px 18px;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 10px;border-radius:6px}
}

/* ===== Hero 关键词标签云 ===== */
.hero{padding:74px 0 54px;border-bottom:1px solid var(--line-soft)}
.hero-eyebrow{
  font-family:var(--mono);font-size:.74rem;letter-spacing:3px;
  color:var(--accent);text-transform:uppercase;margin-bottom:20px;
}
.hero h1{font-size:clamp(1.85rem,4.4vw,3.05rem);margin:0 0 18px;max-width:16em}
.hero h1 em{font-style:normal;color:var(--main)}
.hero p.lede{max-width:60ch;color:var(--muted);font-size:1.02rem;margin-bottom:32px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag-cloud .kw{
  font-size:.82rem;font-weight:500;padding:7px 15px;border-radius:999px;
  border:1px solid var(--line);color:var(--muted);
  transition:border-color .25s,color .25s,transform .25s;
  animation:kwIn .6s backwards;
}
.tag-cloud .kw:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.tag-cloud .kw:nth-child(3n){border-color:rgba(109,93,252,.45)}
@keyframes kwIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ===== 通用区块 ===== */
section.block{padding:66px 0;border-bottom:1px solid var(--line-soft)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(1.35rem,2.6vw,1.85rem);margin:0}
.sec-head .sub{color:var(--muted);font-size:.9rem;max-width:44ch;margin:6px 0 0}
.sec-link{font-size:.86rem;color:var(--accent);border-bottom:1px solid rgba(34,211,238,.4);padding-bottom:2px;white-space:nowrap}
.sec-link:hover{color:var(--text);border-color:var(--text)}

/* 滚动淡入 */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.shown{opacity:1;transform:none}

/* ===== 榜单 ===== */
.rank-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:0;border:1px solid var(--line)}
.rank-col{padding:6px 0;border-right:1px solid var(--line)}
.rank-col:last-child{border-right:none}
.rank{
  display:flex;align-items:center;gap:16px;padding:13px 20px;
  border-bottom:1px solid var(--line-soft);transition:background .22s;
}
.rank:last-child{border-bottom:none}
.rank:hover{background:rgba(109,93,252,.1)}
.rank .no{font-family:var(--mono);font-size:1rem;width:2.2ch;color:var(--muted)}
.rank.top1 .no{color:var(--main);font-weight:700}
.rank.top2 .no,.rank.top3 .no{color:var(--accent)}
.rank .t{flex:1;min-width:0}
.rank .t .nm{font-weight:600;font-size:.96rem;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank .t .mt{font-size:.76rem;color:var(--muted);font-family:var(--mono)}
.rank .sc{font-family:var(--mono);font-size:.95rem;color:var(--accent)}
@media(max-width:760px){.rank-col{border-right:none;border-bottom:1px solid var(--line)}}

/* ===== 海报区 ===== */
.poster-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:26px 20px}
.poster{position:relative;perspective:1200px;cursor:pointer}
.poster-inner{position:relative;transform-style:preserve-3d;transition:transform .7s cubic-bezier(.25,.8,.3,1)}
.poster.flipped .poster-inner{transform:rotateY(180deg)}
.p-face{backface-visibility:hidden;-webkit-backface-visibility:hidden;border:1px solid var(--line);border-radius:4px;overflow:hidden}
.p-front{background:#12132a}
.p-front .thumb{position:relative;aspect-ratio:2/3;overflow:hidden;background:#181a35}
.p-front .thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s ease}
.poster:hover .p-front .thumb img{transform:scale(1.05)}
.p-front .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,16,32,0) 42%,rgba(15,16,32,.92) 100%);
}
.play-btn{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:46px;height:46px;border-radius:50%;
  border:1px solid rgba(232,234,246,.55);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:.86rem;background:rgba(15,16,32,.35);
  opacity:0;transition:opacity .3s,border-color .3s,transform .3s;z-index:3;
}
.poster:hover .play-btn{opacity:1;transform:translate(-50%,-50%) scale(1.06);border-color:var(--accent);color:var(--accent)}
.p-front .info{position:absolute;left:0;right:0;bottom:0;padding:12px 13px 13px;z-index:2}
.p-front .info .nm{font-size:.94rem;font-weight:700;line-height:1.4;display:block;margin-bottom:4px}
.p-front .info .meta{font-family:var(--mono);font-size:.73rem;color:var(--muted);display:flex;gap:8px;align-items:center}
.p-front .info .meta .rt{color:var(--accent)}
.p-front .rate-badge{
  position:absolute;top:10px;right:10px;z-index:3;
  font-family:var(--mono);font-size:.76rem;padding:2px 7px;border-radius:3px;
  background:rgba(15,16,32,.72);border:1px solid rgba(109,93,252,.55);color:#cfc9ff;
}
/* 背面详情 */
.p-back{
  position:absolute;inset:0;transform:rotateY(180deg);
  background:linear-gradient(160deg,rgba(109,93,252,.2),rgba(15,16,32,.98) 55%);
  padding:16px 15px;display:flex;flex-direction:column;
  overflow-y:auto;
}
.p-back h4{font-size:.92rem;margin:0 0 8px;font-weight:800}
.p-back dl{margin:0 0 8px;font-size:.75rem;line-height:1.7}
.p-back dl div{display:flex;gap:6px}
.p-back dt{color:var(--accent);flex:0 0 2.6em;font-family:var(--mono)}
.p-back dd{margin:0;color:var(--muted)}
.p-back .plot{font-size:.75rem;color:rgba(232,234,246,.82);line-height:1.7;margin:2px 0 10px}
.p-back .close-back{
  margin-top:auto;align-self:flex-start;font-size:.73rem;font-family:var(--mono);
  border:1px solid var(--line);padding:4px 10px;border-radius:4px;color:var(--muted);background:none;
}
.p-back .close-back:hover{border-color:var(--accent);color:var(--accent)}
@media(max-width:520px){
  .poster-row{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:20px 14px}
  .p-back{padding:12px}
}

/* ===== 筛选区 ===== */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.chip{
  font-size:.85rem;padding:7px 16px;border:1px solid var(--line);border-radius:999px;
  color:var(--muted);cursor:pointer;background:none;transition:all .22s;
}
.chip:hover{border-color:rgba(34,211,238,.6);color:var(--accent)}
.chip.active{background:linear-gradient(120deg,var(--main),#8f7dff);color:#fff;border-color:transparent}
.cat-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);margin-top:34px}
.cat-cell{background:var(--bg);padding:22px 20px;transition:background .22s}
.cat-cell:hover{background:rgba(109,93,252,.1)}
.cat-cell h5{font-size:1rem;margin:0 0 6px;font-weight:800}
.cat-cell p{margin:0;font-size:.84rem;color:var(--muted);line-height:1.75}
.cat-cell .cnt{font-family:var(--mono);font-size:.72rem;color:var(--accent);display:block;margin-top:10px}

/* ===== 对比表格 ===== */
.cmp-table{width:100%;border-collapse:collapse;border:1px solid var(--line);font-size:.9rem}
.cmp-table th,.cmp-table td{padding:14px 18px;border-bottom:1px solid var(--line-soft);text-align:left;vertical-align:top}
.cmp-table thead th{font-size:.84rem;color:var(--accent);font-weight:700;letter-spacing:1px;background:rgba(34,211,238,.05)}
.cmp-table tbody tr:last-child td{border-bottom:none}
.cmp-table td:first-child{font-weight:700;white-space:nowrap}
.cmp-table td .num{font-family:var(--mono);color:var(--accent)}
.cmp-wrap{overflow-x:auto}

/* ===== 编号清单 ===== */
.steps{counter-reset:st;list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
.steps li{
  counter-increment:st;padding:20px 0 20px 62px;position:relative;
  border-bottom:1px solid var(--line-soft);
}
.steps li::before{
  content:counter(st,decimal-leading-zero);
  position:absolute;left:0;top:20px;
  font-family:var(--mono);font-size:.86rem;color:var(--main);
  border:1px solid rgba(109,93,252,.5);border-radius:4px;
  width:38px;height:26px;display:flex;align-items:center;justify-content:center;
}
.steps li h5{font-size:1rem;margin:0 0 6px;font-weight:800}
.steps li p{margin:0;color:var(--muted);font-size:.88rem;max-width:66ch}

/* ===== 统计数字 ===== */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.stat{background:var(--bg);padding:30px 24px;text-align:center}
.stat .big{font-family:var(--mono);font-size:2.15rem;font-weight:700;color:var(--text);line-height:1}
.stat .big .u{color:var(--accent);font-size:1rem;margin-left:3px}
.stat .lab{margin-top:10px;font-size:.82rem;color:var(--muted)}

/* ===== 按钮 ===== */
.btn-glow{
  position:relative;display:inline-flex;align-items:center;gap:9px;
  padding:12px 28px;border-radius:999px;font-weight:700;font-size:.94rem;
  color:#fff;border:none;overflow:hidden;
  background:linear-gradient(100deg,var(--main),var(--accent),var(--main));
  background-size:220% 100%;
  transition:background-position .7s ease;
}
.btn-glow:hover{background-position:100% 0}
.btn-glow::after{
  content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-22deg);transition:left .7s ease;
}
.btn-glow:hover::after{left:130%}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;padding:11px 26px;border-radius:999px;
  border:1px solid var(--line);color:var(--text);font-weight:600;font-size:.92rem;background:none;
  transition:border-color .25s,color .25s;
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}

/* ===== 友链 & 页脚 ===== */
.friend-links{padding:52px 0;border-bottom:1px solid var(--line-soft)}
.friend-links h3{font-size:1rem;font-weight:800;margin:0 0 16px;color:var(--muted);letter-spacing:1px}
.friend-links .fl-line{font-size:.88rem;color:var(--muted);line-height:2.1;word-break:break-all}
footer.site-footer{padding:56px 0 34px}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px;margin-bottom:42px}
@media(max-width:820px){.foot-top{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-top{grid-template-columns:1fr}}
.foot-top h6{font-size:.9rem;font-weight:800;margin:0 0 14px;letter-spacing:.5px}
.foot-top p{font-size:.86rem;color:var(--muted);margin:0;max-width:34ch}
.foot-col a{display:block;font-size:.86rem;color:var(--muted);padding:5px 0;transition:color .2s}
.foot-col a:hover{color:var(--accent)}
.foot-bottom{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.8rem;color:var(--muted)}
.foot-bottom .dm{font-family:var(--mono);color:var(--accent)}

/* 遮罩 */
.overlay-mask{position:fixed;inset:0;background:rgba(8,9,18,.7);opacity:0;pointer-events:none;transition:opacity .3s;z-index:800}
.overlay-mask.show{opacity:1;pointer-events:auto}

@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* --- 子页面追加 --- */
.guide-lead {max-width:760px;color:var(--muted);line-height:1.9;font-size:1.02rem}
.guide-block {padding:40px 0;border-top:1px solid var(--line-soft)}
.guide-block:first-of-type {border-top:0}
.guide-h2 {font-size:1.45rem;font-weight:800;letter-spacing:-.01em;margin-bottom:8px}
.guide-h2 .num {color:var(--accent);font-family:var(--mono);font-size:.95rem;margin-right:10px}
.guide-sub {color:var(--muted);font-size:.94rem;margin-bottom:22px}
.step-list {list-style:none;padding:0;margin:0;counter-reset:s}
.step-list li {position:relative;padding:16px 18px 16px 54px;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;background:rgba(255,255,255,.02)}
.step-list li::before {counter-increment:s;content:counter(s,decimal-leading-zero);position:absolute;left:16px;top:16px;font-family:var(--mono);font-size:.82rem;color:var(--accent);border:1px solid var(--line);border-radius:8px;padding:2px 7px}
.step-list strong {display:block;margin-bottom:4px}
.step-list span {color:var(--muted);font-size:.92rem;line-height:1.75}
.tip-card {border:1px solid var(--line);border-radius:16px;padding:22px;height:100%;background:rgba(255,255,255,.02);transition:.25s}
.tip-card:hover {border-color:rgba(109,93,252,.55);transform:translateY(-3px)}
.tip-card h3 {font-size:1.02rem;font-weight:700;margin:12px 0 8px}
.tip-card p {color:var(--muted);font-size:.9rem;line-height:1.8;margin:0}
.tip-ico {width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(109,93,252,.16);color:var(--accent);font-size:1.05rem}
.mini-table {width:100%;border-collapse:collapse;font-size:.92rem}
.mini-table th,.mini-table td {padding:12px 14px;border-bottom:1px solid var(--line-soft);text-align:left;vertical-align:top}
.mini-table th {color:var(--text);font-weight:700;white-space:nowrap}
.mini-table td {color:var(--muted);line-height:1.75}
.mini-table tr:last-child td {border-bottom:0}
.mini-table .mono {color:var(--accent);font-family:var(--mono);font-size:.84rem}
.notice-box {border:1px solid var(--line);border-left:3px solid var(--main);border-radius:12px;padding:18px 20px;background:rgba(109,93,252,.07);color:var(--muted);font-size:.92rem;line-height:1.85}
.notice-box b {color:var(--text)}
.chip i {color:var(--accent);font-size:.78rem}
.guide-h2 {font-size:1.2rem}
.guide-block {padding:28px 0}
.mini-table th,.mini-table td {padding:10px}
.mini-table {font-size:.86rem}

/* --- 子页面追加 --- */
.rank-hero-note {max-width:760px;color:var(--muted);line-height:1.85}
.board-card {background:rgba(232,234,246,.03);border:1px solid var(--line-soft);border-radius:16px;padding:22px 22px 8px}
.board-title {font-size:1.02rem;font-weight:700;letter-spacing:.02em;display:flex;align-items:center;gap:10px;margin-bottom:14px}
.board-title .dot {width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent)}
.board-list {list-style:none;padding:0;margin:0}
.board-list li {display:flex;align-items:baseline;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line-soft);font-size:.94rem;line-height:1.6}
.board-list li:last-child {border-bottom:0}
.board-list .no {font-family:var(--mono);font-size:.8rem;color:var(--muted);min-width:30px;flex:0 0 30px}
.board-list .nm {flex:1;color:var(--text)}
.board-list .yr {font-family:var(--mono);font-size:.78rem;color:var(--muted);flex:0 0 auto}
.board-list .sc {font-family:var(--mono);font-size:.8rem;color:var(--accent);flex:0 0 auto}
.intro-block {margin-top:34px}
.intro-block h3 {font-size:1.15rem;font-weight:700;margin-bottom:12px}
.intro-block p {color:var(--muted);line-height:1.95;margin-bottom:12px}
.rule-tag {display:inline-block;font-family:var(--mono);font-size:.74rem;color:var(--accent);border:1px solid var(--line);border-radius:999px;padding:3px 10px;margin:0 6px 8px 0}
.tip-box {border-left:3px solid var(--main);background:rgba(109,93,252,.07);border-radius:0 12px 12px 0;padding:16px 20px;margin-top:26px;color:var(--muted);line-height:1.9;font-size:.94rem}
.board-card {padding:18px 16px 6px}
.board-list li {font-size:.9rem;flex-wrap:wrap}

/* --- 子页面追加 --- */
.about-lead {font-size:1.05rem;line-height:1.95;color:var(--muted);max-width:78ch}
.about-lead strong {color:var(--text);font-weight:600}
.about-card {
    background:rgba(232,234,246,.04);
    border:1px solid var(--line-soft);
    border-radius:16px;
    padding:26px 24px;
    height:100%;
    transition:border-color .25s ease,transform .25s ease,background .25s ease;
  }
.about-card:hover {border-color:var(--line);transform:translateY(-3px);background:rgba(109,93,252,.07)}
.about-card .ic {
    width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,var(--main),var(--accent));color:#fff;font-size:1.05rem;margin-bottom:16px;
  }
.about-card h3 {font-size:1.02rem;font-weight:700;color:var(--text);margin:0 0 10px}
.about-card p {font-size:.9rem;line-height:1.85;color:var(--muted);margin:0}
.about-list {list-style:none;padding:0;margin:0}
.about-list li {
    display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line-soft);
    font-size:.93rem;line-height:1.8;color:var(--muted);
  }
.about-list li:last-child {border-bottom:none}
.about-list li i {color:var(--accent);margin-top:.4em;flex-shrink:0}
.about-list li b {color:var(--text);font-weight:600}
.about-note {
    border-left:3px solid var(--main);
    background:rgba(109,93,252,.08);
    border-radius:0 12px 12px 0;
    padding:18px 22px;
    font-size:.9rem;line-height:1.9;color:var(--muted);
  }
.about-note b {color:var(--text)}
.stat-row {display:flex;flex-wrap:wrap;gap:14px;margin-top:8px}
.stat .num {font-family:var(--mono);font-size:1.3rem;font-weight:700;color:var(--accent);line-height:1.3}
.stat .lbl {font-size:.78rem;color:var(--muted);margin-top:4px;letter-spacing:.03em}
.about-cta {
    display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
    border:1px solid var(--line);border-radius:18px;padding:24px 26px;
    background:linear-gradient(120deg,rgba(109,93,252,.16),rgba(34,211,238,.08));
  }
.about-cta p {margin:0;font-size:.95rem;color:var(--text);line-height:1.7}
.btn-main {
    display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:999px;
    background:linear-gradient(135deg,var(--main),var(--accent));color:#fff;font-weight:600;font-size:.9rem;
    text-decoration:none;white-space:nowrap;transition:opacity .2s ease,transform .2s ease;
  }
.btn-main:hover {opacity:.9;transform:translateY(-2px);color:#fff}
.about-foot-note {font-size:.82rem;color:var(--muted);line-height:1.9;margin-top:14px}
.about-card {padding:22px 18px}
.about-cta {padding:20px 18px}