/* roulang page: index */
:root{
  --void:#14101F;
  --panel:#1B1130;
  --face:#221A33;
  --hot:#FF2E88;
  --cool:#35E0D0;
  --gold:#F2B544;
  --txt:#F4EEF7;
  --txt2:#A99CB8;
  --line:rgba(255,255,255,.08);
  --r1:14px;
  --r2:10px;
  --sh:0 12px 28px rgba(0,0,0,.35);
  --gap:20px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC",sans-serif;
  font-size:15px;
  line-height:1.75;
  background:var(--void);
  color:var(--txt);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
input{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--hot);outline-offset:3px}
.kvbd-wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* 顶栏 */
.kvbd-top{position:sticky;top:0;z-index:60;background:var(--void);border-bottom:1px solid var(--line)}
.kvbd-navbar{display:flex;align-items:center;gap:20px;min-height:68px}
.kvbd-brand{display:flex;align-items:center;gap:10px;flex:none}
.kvbd-brand-mark{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--hot),var(--cool));
  font-size:13px;font-weight:800;color:#1a0b14;letter-spacing:.02em;
}
.kvbd-brand-txt{font-size:16px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.kvbd-nav{display:flex;align-items:center;gap:22px;margin-left:auto;font-size:14px}
.kvbd-nav a{padding:8px 0;color:var(--txt2);transition:color .2s}
.kvbd-nav a:hover{color:var(--hot)}
.kvbd-btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 24px;border-radius:999px;
  background:var(--hot);color:#1a0b14;font-weight:800;font-size:15px;white-space:nowrap;
  transition:transform .2s,filter .2s,box-shadow .2s;
}
.kvbd-btn:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,46,136,.28)}
.kvbd-btn-ghost{background:transparent;border:1px solid var(--cool);color:var(--cool)}
.kvbd-btn-ghost:hover{background:var(--cool);color:#08211f;filter:none;box-shadow:0 10px 22px rgba(53,224,208,.25)}
.kvbd-mob{display:none;margin-left:auto;position:relative}
.kvbd-mob summary{
  list-style:none;cursor:pointer;min-width:44px;min-height:44px;padding:0 15px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:10px;font-size:14px;color:var(--txt2);
}
.kvbd-mob summary::-webkit-details-marker{display:none}
.kvbd-mob-list{
  position:absolute;right:0;top:calc(100% + 10px);min-width:196px;
  background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:8px;box-shadow:var(--sh);
}
.kvbd-mob-list a{display:flex;align-items:center;min-height:44px;padding:0 12px;border-radius:8px;font-size:14px;color:var(--txt2)}
.kvbd-mob-list a:hover{background:var(--face);color:var(--hot)}

/* 首屏 */
.kvbd-hero{position:relative;overflow:hidden;background:var(--void);border-bottom:1px solid var(--line)}
.kvbd-hero::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.32}
.kvbd-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(96deg,#14101F 32%,rgba(20,16,31,.88) 62%,rgba(27,17,48,.6))}
.kvbd-hero-in{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:center;
  padding:72px 24px;
}
.kvbd-eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.16em;color:var(--cool);
  border:1px solid rgba(53,224,208,.35);border-radius:999px;padding:3px 14px;margin-bottom:18px;
}
.kvbd-h1{font-size:clamp(30px,4.2vw,54px);font-weight:800;line-height:1.15;letter-spacing:-.01em}
.kvbd-h1 em{
  font-style:normal;color:var(--hot);
  background:linear-gradient(transparent 68%,rgba(255,46,136,.42) 68%);
}
.kvbd-hero-sub{margin-top:16px;font-size:clamp(15px,1.4vw,17px);color:var(--txt2)}
.kvbd-find{display:flex;gap:12px;margin-top:26px;max-width:520px}
.kvbd-find input{
  flex:1;min-width:0;min-height:48px;padding:0 20px;border-radius:999px;
  border:1px solid var(--line);background:#1B1130;color:var(--txt);transition:border-color .2s;
}
.kvbd-find input::placeholder{color:#7d6f8e}
.kvbd-find input:focus{border-color:var(--hot);outline:none}
.kvbd-hero-lead{margin-top:26px;max-width:600px;font-size:14px;color:var(--txt2);line-height:1.9}
.kvbd-hero-art{
  aspect-ratio:3/4;border-radius:var(--r1);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh);background:var(--panel);
}
.kvbd-hero-art img{width:100%;height:100%;object-fit:cover}

/* 通用板块 */
.kvbd-sec{padding:64px 0;scroll-margin-top:84px}
.kvbd-sec--alt{background:linear-gradient(180deg,#1B1130,#181228)}
.kvbd-head{margin-bottom:28px}
.kvbd-head h2{font-size:clamp(22px,2.4vw,29px);font-weight:800;line-height:1.3}
.kvbd-head p{margin-top:8px;font-size:14px;color:var(--txt2);max-width:780px}
.kvbd-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.kvbd-more{font-size:14px;color:var(--cool);border-bottom:1px solid rgba(53,224,208,.4);padding-bottom:2px;white-space:nowrap}
.kvbd-more:hover{color:var(--hot);border-color:rgba(255,46,136,.5)}

/* 速览条 */
.kvbd-glance{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.kvbd-glance li{
  border:1px solid var(--line);background:var(--face);border-radius:999px;
  padding:7px 16px;font-size:13px;color:var(--txt2);letter-spacing:.06em;
}

/* 榜单 */
.kvbd-rank li{
  display:flex;align-items:center;gap:16px;min-height:52px;padding:0 6px;
  border-bottom:1px solid var(--line);transition:background .2s;
}
.kvbd-rank li:hover{background:rgba(255,255,255,.03)}
.kvbd-rank .kvbd-no{
  font-size:26px;font-weight:800;color:var(--hot);min-width:46px;
  font-variant-numeric:tabular-nums;line-height:1;
}
.kvbd-rank .kvbd-nm{font-weight:700;font-size:16px}
.kvbd-rank .kvbd-tp{
  font-size:12px;color:var(--cool);border:1px solid rgba(53,224,208,.32);
  border-radius:6px;padding:1px 8px;letter-spacing:.08em;white-space:nowrap;
}
.kvbd-rank .kvbd-heat{margin-left:auto;font-size:13px;color:var(--txt2);white-space:nowrap}

/* 分类矩阵 */
.kvbd-cats{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.kvbd-cat{background:var(--face);border:1px solid var(--line);border-radius:var(--r1);padding:24px}
.kvbd-cat h3{font-size:18px;font-weight:700;margin-bottom:8px}
.kvbd-cat h3::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--cool);margin-right:9px;vertical-align:middle}
.kvbd-cat p{font-size:14px;color:var(--txt2);line-height:1.8}

/* 卡片网格 */
.kvbd-grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.kvbd-card{
  background:var(--face);border:1px solid var(--line);border-radius:var(--r1);
  overflow:hidden;transition:transform .25s,border-color .25s,box-shadow .25s;
}
.kvbd-card:hover{transform:translateY(-4px);border-color:var(--hot);box-shadow:0 18px 36px rgba(0,0,0,.5)}
.kvbd-cover{position:relative;aspect-ratio:16/9;margin:10px;border-radius:var(--r2);overflow:hidden;background:#150e24}
.kvbd-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.kvbd-card:hover .kvbd-cover img{transform:scale(1.06)}
.kvbd-tag{
  position:absolute;top:8px;right:8px;z-index:2;
  font-size:11px;font-weight:800;letter-spacing:.08em;
  padding:2px 8px;border-radius:6px;background:rgba(53,224,208,.94);color:#08211f;
}
.kvbd-time{
  position:absolute;right:8px;bottom:8px;z-index:2;
  font-size:12px;padding:1px 7px;border-radius:5px;
  background:rgba(10,6,16,.84);color:var(--txt);font-variant-numeric:tabular-nums;
}
.kvbd-body{padding:6px 14px 16px}
.kvbd-body h3{font-size:15px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.kvbd-body p{font-size:13px;color:var(--txt2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* 高分横排 */
.kvbd-hi{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.kvbd-hi-item{
  display:flex;gap:14px;align-items:center;position:relative;
  background:var(--face);border:1px solid var(--line);border-radius:var(--r1);padding:12px;
  transition:transform .25s,border-color .25s;
}
.kvbd-hi-item:hover{transform:translateY(-4px);border-color:var(--hot)}
.kvbd-thumb{width:130px;flex:none;aspect-ratio:16/9;border-radius:var(--r2);overflow:hidden;background:#150e24}
.kvbd-thumb img{width:100%;height:100%;object-fit:cover}
.kvbd-hi-txt{padding-right:46px}
.kvbd-hi-txt h3{font-size:16px;font-weight:700}
.kvbd-hi-txt p{font-size:13px;color:var(--txt2);line-height:1.7}
.kvbd-score{
  position:absolute;top:10px;right:14px;
  color:var(--gold);font-weight:800;font-size:16px;font-variant-numeric:tabular-nums;
}

/* 双栏交错 */
.kvbd-duo{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap)}
.kvbd-duo li{
  display:flex;gap:14px;align-items:center;
  background:var(--face);border:1px solid var(--line);border-radius:var(--r1);
  padding:12px;margin-bottom:16px;transition:transform .25s,border-color .25s;
}
.kvbd-duo li:hover{transform:translateY(-4px);border-color:var(--hot)}
.kvbd-duo .kvbd-thumb{width:140px}
.kvbd-duo h3{font-size:15px;font-weight:700}
.kvbd-duo p{font-size:13px;color:var(--txt2);line-height:1.7}
.kvbd-duo-flip li{flex-direction:row-reverse;text-align:right}

/* 频道精选 */
.kvbd-ch{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.kvbd-ch-grp{background:var(--face);border:1px solid var(--line);border-radius:var(--r1);padding:20px}
.kvbd-ch-grp h3{font-size:17px;font-weight:700;margin-bottom:14px}
.kvbd-ch-item{display:flex;gap:12px;align-items:center;padding:10px 0;border-top:1px solid var(--line)}
.kvbd-ch-item:first-child{border-top:0}
.kvbd-ch-thumb{width:88px;flex:none;aspect-ratio:16/9;border-radius:8px;overflow:hidden;background:#150e24}
.kvbd-ch-thumb img{width:100%;height:100%;object-fit:cover}
.kvbd-ch-item h4{font-size:14px;font-weight:700}
.kvbd-ch-item p{font-size:12px;color:var(--txt2);line-height:1.6}

/* 系列连载 */
.kvbd-ser{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.kvbd-ser li{
  display:flex;gap:14px;align-items:center;
  background:var(--face);border:1px solid var(--line);border-radius:var(--r1);padding:12px;
  transition:border-color .25s;
}
.kvbd-ser li:hover{border-color:var(--hot)}
.kvbd-ser-thumb{width:120px;flex:none;height:68px;border-radius:8px;overflow:hidden;background:#150e24}
.kvbd-ser-thumb img{width:100%;height:100%;object-fit:cover}
.kvbd-ser h3{font-size:15px;font-weight:700}
.kvbd-ser p{font-size:13px;color:var(--txt2)}

/* 三列专题 */
.kvbd-grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.kvbd-topic{
  background:var(--face);border:1px solid var(--line);border-radius:var(--r1);overflow:hidden;
  transition:transform .25s,border-color .25s;
}
.kvbd-topic:hover{transform:translateY(-4px);border-color:var(--hot)}
.kvbd-topic .kvbd-cover{aspect-ratio:16/9}
.kvbd-topic .kvbd-body h3{font-size:16px}
.kvbd-topic .kvbd-body p{white-space:normal;line-height:1.75;margin-top:4px}
.kvbd-meta{margin-top:10px;font-size:12px;letter-spacing:.1em;color:var(--cool)}
.kvbd-era{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.kvbd-era li{
  font-size:12px;letter-spacing:.12em;color:var(--txt2);
  border:1px solid var(--line);border-radius:8px;padding:5px 14px;
}

/* 卡片墙 */
.kvbd-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.kvbd-wall .kvbd-cover{aspect-ratio:3/4}
.kvbd-wall .kvbd-tag{background:rgba(255,46,136,.94);color:#1a0b14}
.kvbd-wall .kvbd-body{padding:2px 14px 14px}
.kvbd-wall .kvbd-kind{font-size:12px;color:var(--cool);letter-spacing:.08em}

/* 资讯 */
.kvbd-news li{
  display:flex;gap:16px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line);
}
.kvbd-news-thumb{width:96px;height:64px;flex:none;border-radius:8px;overflow:hidden;background:#150e24}
.kvbd-news-thumb img{width:100%;height:100%;object-fit:cover}
.kvbd-news h3{font-size:15px;font-weight:700;line-height:1.6}
.kvbd-news span{font-size:12px;color:var(--txt2);letter-spacing:.06em}

/* 问答 */
.kvbd-faq li{
  background:var(--face);border:1px solid var(--line);border-radius:var(--r1);
  padding:20px 22px;margin-bottom:14px;
}
.kvbd-faq h3{font-size:16px;font-weight:700;margin-bottom:8px}
.kvbd-faq h3::before{content:"Q";display:inline-block;color:var(--hot);font-weight:800;margin-right:9px}
.kvbd-faq p{font-size:14px;color:var(--txt2);line-height:1.85}

/* 歌单清单 */
.kvbd-pl li{
  display:flex;gap:16px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line);
}
.kvbd-pl-thumb{width:96px;height:54px;flex:none;border-radius:8px;overflow:hidden;background:#150e24}
.kvbd-pl-thumb img{width:100%;height:100%;object-fit:cover}
.kvbd-pl h3{font-size:15px;font-weight:700}
.kvbd-pl p{font-size:13px;color:var(--txt2)}
.kvbd-pl .kvbd-kind{
  margin-left:auto;font-size:12px;color:var(--cool);
  border:1px solid rgba(53,224,208,.32);border-radius:6px;padding:2px 9px;white-space:nowrap;
}

/* 页脚 */
.kvbd-foot{background:var(--panel);border-top:1px solid var(--line);padding:52px 0 26px;margin-top:8px}
.kvbd-foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1.4fr;gap:36px}
.kvbd-foot h3{font-size:15px;font-weight:800;margin-bottom:14px}
.kvbd-foot li{margin-bottom:9px}
.kvbd-foot a,.kvbd-foot span{font-size:13px;color:var(--txt2)}
.kvbd-foot a:hover{color:var(--hot)}
.kvbd-foot p{font-size:13px;color:var(--txt2);line-height:1.9}
.kvbd-tags{display:flex;flex-wrap:wrap;gap:8px}
.kvbd-tags span{
  font-size:12px;color:var(--txt2);border:1px solid var(--line);
  border-radius:8px;padding:4px 11px;
}
.kvbd-copy{
  margin-top:36px;padding-top:18px;border-top:1px solid var(--line);
  font-size:12px;color:#7d6f8e;
}

@media(max-width:1024px){
  .kvbd-nav{display:none}
  .kvbd-cta{display:none}
  .kvbd-mob{display:block;margin-left:auto}
  .kvbd-hero-in{grid-template-columns:minmax(0,1fr) 260px;gap:32px;padding:56px 24px}
  .kvbd-grid4{grid-template-columns:repeat(3,1fr)}
  .kvbd-wall{grid-template-columns:repeat(3,1fr)}
  .kvbd-cats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .kvbd-sec{padding:48px 0}
  .kvbd-hero-in{grid-template-columns:1fr;padding:48px 24px}
  .kvbd-hero-art{display:none}
  .kvbd-grid4{grid-template-columns:repeat(2,1fr);gap:14px}
  .kvbd-wall{grid-template-columns:repeat(2,1fr);gap:14px}
  .kvbd-hi,.kvbd-duo,.kvbd-ser{grid-template-columns:1fr}
  .kvbd-ch,.kvbd-grid3{grid-template-columns:1fr}
  .kvbd-foot-grid{grid-template-columns:1fr;gap:26px}
  .kvbd-duo-flip li{flex-direction:row;text-align:left}
  .kvbd-find{max-width:none}
}
@media(max-width:520px){
  .kvbd-wrap{padding:0 16px}
  .kvbd-hero-in{padding:40px 16px}
  .kvbd-cats{grid-template-columns:1fr}
  .kvbd-rank .kvbd-no{font-size:18px;min-width:32px}
  .kvbd-rank li{gap:10px}
  .kvbd-rank .kvbd-heat{display:none}
  .kvbd-thumb{width:104px}
  .kvbd-duo .kvbd-thumb{width:104px}
  .kvbd-ser-thumb{width:96px;height:56px}
  .kvbd-ch-thumb{width:76px}
  .kvbd-pl-thumb{width:76px;height:46px}
  .kvbd-find{flex-wrap:wrap}
  .kvbd-find input{flex:1 1 100%}
  .kvbd-find .kvbd-btn{width:100%}
  .kvbd-news-thumb{width:78px;height:54px}
  .kvbd-brand-txt{font-size:15px}
}