/* roulang page: index */
:root{
  --abyss:#050a16;
  --deep:#0b1428;
  --glass:rgba(120,180,255,.07);
  --glass2:rgba(255,255,255,.045);
  --cy:#3fe0ff;
  --am:#ffc65c;
  --txt:#e9f2ff;
  --dim:#93a6c8;
  --line:rgba(110,170,255,.18);
  --r:18px;
  --rs:12px;
  --sh:0 20px 48px rgba(2,8,20,.55);
  --gap:18px;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:15px;
  line-height:1.75;
  color:var(--txt);
  background:
    radial-gradient(900px 520px at 12% -8%,rgba(63,224,255,.14),transparent 62%),
    radial-gradient(760px 480px at 92% 4%,rgba(255,198,92,.10),transparent 60%),
    var(--abyss);
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,p{margin:0}
:focus-visible{outline:2px solid var(--cy);outline-offset:3px;border-radius:6px}
.kkc-shell{width:100%;max-width:var(--max);margin:0 auto;padding:0 18px}

/* 顶栏 */
.kkc-header{position:sticky;top:0;z-index:50;background:rgba(6,12,26,.82);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.kkc-bar{display:flex;align-items:center;gap:12px;min-height:62px;flex-wrap:wrap;padding:8px 0}
.kkc-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;letter-spacing:.5px}
.kkc-mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-size:16px;color:#04121f;background:linear-gradient(140deg,var(--cy),var(--am));box-shadow:0 0 18px rgba(63,224,255,.45)}
.kkc-nav{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;width:100%;padding-bottom:2px}
.kkc-nav::-webkit-scrollbar{display:none}
.kkc-navlink{flex:0 0 auto;display:inline-flex;align-items:center;min-height:44px;padding:0 12px;border-radius:10px;font-size:14px;color:var(--dim);transition:color .2s,background .2s}
.kkc-navlink:hover{color:var(--txt);background:var(--glass)}
.kkc-navlink.is-on{color:#04121f;background:linear-gradient(120deg,var(--cy),#8ef0ff);font-weight:600;box-shadow:0 6px 18px rgba(63,224,255,.28)}

/* 首屏 */
.kkc-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.kkc-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.4;filter:saturate(1.08)}
.kkc-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,10,22,.68),rgba(5,10,22,.9) 62%,var(--abyss))}
.kkc-hero-in{position:relative;z-index:2;display:grid;gap:26px;padding:54px 0 52px}
.kkc-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--cy);border:1px solid rgba(63,224,255,.36);background:rgba(63,224,255,.08);padding:6px 12px;border-radius:999px;letter-spacing:1px}
.kkc-h1{font-size:27px;line-height:1.32;margin:16px 0 10px;letter-spacing:.5px}
.kkc-h1 span{color:var(--am);text-shadow:0 0 26px rgba(255,198,92,.45)}
.kkc-lede{font-size:15px;color:#bcd0ee;margin-bottom:12px}
.kkc-hero-p{font-size:14.5px;color:var(--dim);max-width:44em}
.kkc-acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.kkc-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:12px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}
.kkc-btn--main{color:#04121f;background:linear-gradient(120deg,var(--cy),#a5f4ff);box-shadow:0 12px 30px rgba(63,224,255,.32)}
.kkc-btn--main:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(63,224,255,.45)}
.kkc-btn--ghost{color:var(--txt);border-color:rgba(120,190,255,.4);background:var(--glass)}
.kkc-btn--ghost:hover{background:rgba(120,190,255,.16)}
.kkc-panel{background:linear-gradient(160deg,rgba(120,180,255,.13),rgba(255,255,255,.03));border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--sh);backdrop-filter:blur(10px)}
.kkc-panel-h{font-size:15px;font-weight:700;letter-spacing:.6px;margin-bottom:14px;color:#dcebff}
.kkc-facts{display:grid;gap:12px}
.kkc-fact{display:flex;justify-content:space-between;gap:14px;align-items:baseline;padding:10px 0;border-bottom:1px dashed rgba(120,180,255,.18);font-size:13.5px}
.kkc-fact:last-child{border-bottom:0;padding-bottom:0}
.kkc-fact b{color:var(--dim);font-weight:500;flex:0 0 auto}
.kkc-fact span{color:var(--cy);text-align:right}

/* 板块 */
.kkc-sec{padding:52px 0;border-bottom:1px solid rgba(110,170,255,.1)}
.kkc-sec--alt{background:linear-gradient(180deg,rgba(11,20,40,.9),rgba(5,10,22,.5))}
.kkc-head{max-width:760px;margin-bottom:26px}
.kkc-h2{font-size:21px;line-height:1.4;letter-spacing:.4px}
.kkc-h2 em{font-style:normal;color:var(--cy)}
.kkc-sub{margin-top:10px;font-size:14px;color:var(--dim)}

/* 卡片网格 */
.kkc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.kkc-card{display:flex;flex-direction:column;background:var(--glass2);border:1px solid rgba(110,170,255,.14);border-radius:var(--rs);overflow:hidden;transition:transform .22s,border-color .22s,box-shadow .22s}
.kkc-card:hover{transform:translateY(-4px);border-color:rgba(63,224,255,.45);box-shadow:0 16px 34px rgba(3,10,24,.6)}
.kkc-thumb{position:relative;aspect-ratio:3/4;overflow:hidden;background:#0a1striped}
.kkc-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.kkc-card:hover .kkc-thumb img{transform:scale(1.06)}
.kkc-badge{position:absolute;top:8px;left:8px;font-size:11px;line-height:1;padding:5px 8px;border-radius:8px;background:rgba(4,12,26,.82);color:var(--cy);border:1px solid rgba(63,224,255,.4);letter-spacing:.5px}
.kkc-card-b{padding:10px 11px 12px}
.kkc-name{font-size:14px;font-weight:600;line-height:1.4;margin-bottom:4px}
.kkc-meta{font-size:12px;color:var(--dim);line-height:1.5}

/* 分类频道 */
.kkc-chips{display:grid;gap:12px;grid-template-columns:1fr}
.kkc-chip{display:block;padding:16px;border-radius:var(--rs);border:1px solid rgba(110,170,255,.16);background:linear-gradient(150deg,rgba(120,180,255,.09),rgba(255,255,255,.02));transition:border-color .2s,background .2s}
.kkc-chip:hover{border-color:rgba(255,198,92,.5);background:linear-gradient(150deg,rgba(255,198,92,.1),rgba(255,255,255,.02))}
.kkc-chip-h{display:block;font-size:15px;font-weight:700;color:#eaf4ff;margin-bottom:6px;letter-spacing:.5px}
.kkc-chip-p{display:block;font-size:13px;color:var(--dim);line-height:1.65}

/* 榜单 */
.kkc-rank{display:grid;gap:10px}
.kkc-rank li{display:flex;align-items:center;gap:12px;padding:11px 13px;border-radius:var(--rs);background:var(--glass2);border:1px solid rgba(110,170,255,.13);min-height:46px;transition:border-color .2s,transform .2s}
.kkc-rank li:hover{border-color:rgba(63,224,255,.42);transform:translateX(3px)}
.kkc-no{flex:0 0 26px;font-weight:800;font-size:15px;color:var(--am);text-align:center}
.kkc-rank-name{font-size:14px;font-weight:600}
.kkc-heat{font-size:12px;color:var(--dim);margin-left:auto;text-align:right}
.kkc-tag{display:inline-block;font-size:11px;color:var(--cy);border:1px solid rgba(63,224,255,.34);border-radius:999px;padding:2px 8px;margin-left:8px;white-space:nowrap}

/* 团队 */
.kkc-team{display:grid;gap:22px;align-items:center}
.kkc-team-img{width:100%;border-radius:var(--r);border:1px solid var(--line);box-shadow:var(--sh);object-fit:cover;aspect-ratio:16/9}
.kkc-team-txt p{font-size:14px;color:var(--dim);margin-bottom:12px}
.kkc-team-txt strong{color:var(--txt)}

/* 创作者 */
.kkc-maker{display:flex;align-items:center;gap:12px;padding:13px;border-radius:var(--rs);border:1px solid rgba(110,170,255,.14);background:var(--glass2);transition:border-color .2s,background .2s}
.kkc-maker:hover{border-color:rgba(63,224,255,.42);background:rgba(63,224,255,.07)}
.kkc-avatar{width:52px;height:52px;border-radius:50%;object-fit:cover;flex:0 0 52px;border:1px solid rgba(63,224,255,.34)}
.kkc-maker h3{font-size:14px;margin-bottom:3px}
.kkc-maker p{font-size:12px;color:var(--dim);line-height:1.5}

/* 追更节奏 */
.kkc-flow{display:grid;gap:12px}
.kkc-flow li{padding:16px;border-radius:var(--rs);border:1px solid rgba(110,170,255,.15);background:linear-gradient(160deg,rgba(120,180,255,.08),transparent);min-height:100px}
.kkc-flow b{display:block;font-size:14px;color:var(--am);margin-bottom:6px;letter-spacing:.6px}
.kkc-flow p{font-size:13px;color:var(--dim)}

/* 场景 */
.kkc-scene{display:grid;gap:14px}
.kkc-scene-col{padding:18px;border-radius:var(--r);border:1px solid rgba(110,170,255,.16);background:var(--glass2)}
.kkc-scene-col h3{font-size:15px;margin-bottom:10px;color:#dcf2ff}
.kkc-scene-col li{font-size:13.5px;color:var(--dim);padding-left:16px;position:relative;margin-bottom:8px}
.kkc-scene-col li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--cy)}
.kkc-scene-col.is-no li::before{background:rgba(255,198,92,.8)}

/* 口碑 */
.kkc-voice{display:grid;gap:12px}
.kkc-voice li{padding:16px;border-radius:var(--rs);border:1px solid rgba(110,170,255,.15);background:linear-gradient(170deg,rgba(255,255,255,.05),rgba(120,180,255,.03))}
.kkc-voice p{font-size:13.5px;color:#c6d7f2;margin-bottom:10px}
.kkc-voice span{font-size:12px;color:var(--am)}

/* 资讯 */
.kkc-news-grid{display:grid;gap:14px;grid-template-columns:1fr}
.kkc-news{display:flex;gap:12px;align-items:center;padding:10px;border-radius:var(--rs);border:1px solid rgba(110,170,255,.13);background:var(--glass2);transition:border-color .2s,transform .2s}
.kkc-news:hover{border-color:rgba(63,224,255,.42);transform:translateY(-2px)}
.kkc-news-thumb{width:96px;height:66px;flex:0 0 96px;border-radius:10px;overflow:hidden;background:#0a1530}
.kkc-news-thumb img{width:100%;height:100%;object-fit:cover}
.kkc-news h3{font-size:13.5px;font-weight:600;line-height:1.5}
.kkc-news p{font-size:12px;color:var(--dim);margin-top:4px}

/* 专题 */
.kkc-topic{display:grid;gap:12px;grid-template-columns:1fr 1fr}
.kkc-topic a{display:flex;flex-direction:column;gap:6px;padding:16px;border-radius:var(--rs);border:1px solid rgba(110,170,255,.16);background:linear-gradient(155deg,rgba(63,224,255,.09),rgba(255,255,255,.02));min-height:106px;transition:border-color .2s,transform .2s}
.kkc-topic a:hover{border-color:rgba(255,198,92,.55);transform:translateY(-3px)}
.kkc-topic b{font-size:14px;color:#e9f6ff}
.kkc-topic span{font-size:12.5px;color:var(--dim);line-height:1.55}

/* 收口 */
.kkc-cta{padding:34px 20px;border-radius:var(--r);border:1px solid rgba(63,224,255,.32);background:linear-gradient(135deg,rgba(63,224,255,.14),rgba(255,198,92,.08));box-shadow:var(--sh);text-align:center}
.kkc-cta h2{font-size:20px;margin-bottom:10px}
.kkc-cta p{font-size:14px;color:#c3d6f2;max-width:640px;margin:0 auto 20px}

/* FAQ */
.kkc-faq{display:grid;gap:10px}
.kkc-faq details{border:1px solid rgba(110,170,255,.16);border-radius:var(--rs);background:var(--glass2);padding:0 16px;transition:border-color .2s}
.kkc-faq details[open]{border-color:rgba(63,224,255,.42)}
.kkc-faq summary{list-style:none;cursor:pointer;font-size:14.5px;font-weight:600;padding:14px 0;min-height:44px;display:flex;align-items:center;gap:10px}
.kkc-faq summary::-webkit-details-marker{display:none}
.kkc-faq summary::before{content:"＋";color:var(--cy);font-size:14px}
.kkc-faq details[open] summary::before{content:"－"}
.kkc-faq p{font-size:13.5px;color:var(--dim);padding:0 0 14px 22px}

/* 页脚 */
.kkc-footer{background:rgba(4,9,20,.92);border-top:1px solid var(--line);padding:38px 0 22px;margin-top:0}
.kkc-foot-grid{display:grid;gap:24px;grid-template-columns:1fr}
.kkc-foot-col h3{font-size:14px;color:#dbeaff;margin-bottom:10px;letter-spacing:.5px}
.kkc-foot-col li{font-size:13px;color:var(--dim);margin-bottom:8px}
.kkc-foot-col a{color:var(--dim)}
.kkc-foot-col a:hover{color:var(--cy)}
.kkc-copy{margin-top:26px;padding-top:16px;border-top:1px solid rgba(110,170,255,.12);font-size:12.5px;color:#7d90b0;text-align:center;line-height:1.8}

@media(min-width:520px){
  .kkc-h1{font-size:31px}
  .kkc-grid{grid-template-columns:repeat(3,1fr)}
  .kkc-chips{grid-template-columns:repeat(2,1fr)}
  .kkc-topic{grid-template-columns:repeat(2,1fr)}
  .kkc-news-grid{grid-template-columns:repeat(2,1fr)}
  .kkc-flow{grid-template-columns:repeat(2,1fr)}
  .kkc-scene{grid-template-columns:1fr 1fr}
  .kkc-voice{grid-template-columns:repeat(2,1fr)}
  .kkc-foot-grid{grid-template-columns:1fr 1fr}
}
@media(min-width:768px){
  body{font-size:15.5px}
  .kkc-bar{flex-wrap:nowrap}
  .kkc-nav{width:auto;margin-left:auto;padding-bottom:0}
  .kkc-hero-in{padding:72px 0 66px}
  .kkc-h1{font-size:38px}
  .kkc-lede{font-size:16px}
  .kkc-hero-p{font-size:15px}
  .kkc-sec{padding:66px 0}
  .kkc-h2{font-size:24px}
  .kkc-grid{grid-template-columns:repeat(4,1fr);gap:16px}
  .kkc-chips{grid-template-columns:repeat(3,1fr)}
  .kkc-rank{grid-template-columns:1fr 1fr;column-gap:22px}
  .kkc-maker-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
  .kkc-news-grid{grid-template-columns:repeat(3,1fr)}
  .kkc-topic{grid-template-columns:repeat(4,1fr)}
  .kkc-flow{grid-template-columns:repeat(4,1fr)}
  .kkc-voice{grid-template-columns:repeat(3,1fr)}
  .kkc-foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}
  .kkc-cta{padding:46px 30px}
}
@media(min-width:1024px){
  .kkc-shell{padding:0 24px}
  .kkc-hero-in{grid-template-columns:1.35fr .75fr;align-items:center;gap:38px;padding:88px 0 80px}
  .kkc-h1{font-size:44px}
  .kkc-sec{padding:78px 0}
  .kkc-grid{grid-template-columns:repeat(6,1fr)}
  .kkc-team{grid-template-columns:1.05fr .95fr;gap:34px}
  .kkc-maker-grid .kkc-maker{padding:15px}
  .kkc-topic a{min-height:118px}
  .kkc-h2{font-size:26px}
}