/* roulang page: index */
:root{
  --ink:#2A2144;
  --deep:#171325;
  --accent:#E27B4C;
  --accent2:#C9663A;
  --teal:#4C8C86;
  --paper:#FAF8F4;
  --sand:#F4F0E8;
  --line:#E7E1D6;
  --muted:#6E6879;
  --r:12px;
  --sh:0 1px 2px rgba(23,19,37,.06);
  --shh:0 8px 24px rgba(23,19,37,.10);
}
*,*::before,*::after{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:16px;line-height:1.85;color:var(--deep);background:var(--paper);-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,p,ul,figure{margin:0}
ul{padding:0;list-style:none}
h1,h2,h3{line-height:1.35;letter-spacing:.01em;color:var(--deep)}
h2{font-size:22px;font-weight:700}
h3{font-size:16px;font-weight:600}
@media(min-width:768px){h2{font-size:26px}h3{font-size:18px}}
[id]{scroll-margin-top:80px}

/* 顶栏 */
.hdr{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line)}
.hdr-in{max-width:1240px;margin:0 auto;padding:0 16px;height:56px;display:flex;align-items:center;gap:10px}
@media(min-width:768px){.hdr-in{height:64px;padding:0 24px;gap:16px}}
@media(min-width:1024px){.hdr-in{padding:0 32px}}
.brand{display:flex;align-items:center;gap:8px;flex:none}
.brand-mark{width:32px;height:32px;border-radius:8px;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;flex:none}
.brand-name{font-size:16px;font-weight:600;letter-spacing:.01em;white-space:nowrap}
.nav{display:none}
@media(min-width:1024px){.nav{display:flex;align-items:center;margin-left:10px}}
.nav a{position:relative;display:flex;align-items:center;height:64px;padding:0 10px;font-size:14px;color:#544D62;transition:color 180ms ease-out}
.nav a:hover{color:var(--accent)}
.nav a::after{content:"";position:absolute;left:10px;right:10px;bottom:14px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform 180ms ease-out}
.nav a:hover::after{transform:scaleX(1)}
.search{display:none;align-items:center;flex:1;max-width:260px;margin-left:auto;border:1px solid var(--line);border-radius:8px;background:var(--sand);height:38px;padding:0 4px 0 12px}
@media(min-width:768px){.search{display:flex}}
.search input{flex:1;min-width:0;height:100%;border:0;background:transparent;font-size:14px;outline:none}
.search input::placeholder{color:#9A93A6}
.search button{width:32px;height:32px;border:0;background:transparent;color:var(--muted);cursor:pointer;font-size:15px;line-height:1}
.chip{display:none}
@media(min-width:1280px){.chip{display:inline-flex;align-items:center;height:30px;padding:0 10px;border:1px solid var(--line);border-radius:8px;font-size:13px;color:var(--muted);white-space:nowrap}}
.mnav{margin-left:auto;flex:none}
@media(min-width:1024px){.mnav{display:none}}
.mnav summary{list-style:none;width:44px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer;border:1px solid var(--line);border-radius:8px;font-size:18px;line-height:1}
.mnav summary::-webkit-details-marker{display:none}
.mnav-panel{position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);padding:6px 16px 14px;box-shadow:var(--shh)}
.mnav-panel a{display:flex;align-items:center;min-height:44px;font-size:15px;color:#544D62;border-bottom:1px solid var(--line)}
.mnav-panel a:last-child{border-bottom:0}

/* 骨架 */
.shell{max-width:1240px;margin:0 auto;padding:0 16px}
@media(min-width:768px){.shell{padding:0 24px}}
@media(min-width:1024px){.shell{padding:0 32px;display:flex;gap:28px;align-items:flex-start}}
.main{flex:1;min-width:0;padding-bottom:24px}

/* 目录侧栏 */
.toc{display:none}
@media(min-width:1024px){
  .toc{display:block;width:220px;flex:none;position:sticky;top:88px;padding-top:32px}
  .toc-title{font-size:13px;color:var(--muted);letter-spacing:.08em;margin-bottom:10px}
  .toc a{display:flex;align-items:center;min-height:36px;padding:0 10px;font-size:14px;color:#544D62;border-left:3px solid transparent;border-radius:0 6px 6px 0;transition:background 180ms ease-out,color 180ms ease-out}
  .toc a:hover{background:#F1ECE2;color:var(--ink)}
  .toc a.on{border-left-color:var(--accent);background:#F1ECE2;color:var(--ink);font-weight:600}
  .toc-foot{margin-top:14px;padding-top:12px;border-top:1px solid var(--line);font-size:12px;line-height:1.7;color:var(--muted)}
}

/* 首屏 */
.hero{position:relative;overflow:hidden;margin-top:20px;border-radius:16px;background:var(--ink);color:#F3F0EA;padding:32px 20px 36px}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.6) 1px,transparent 1px);background-size:24px 24px;opacity:.16;pointer-events:none}
@media(min-width:768px){.hero{padding:52px 36px 56px}}
@media(min-width:1024px){.hero{padding:56px 40px}}
.hero-grid{position:relative}
@media(min-width:1024px){.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:40px;align-items:center}}
.hero h1{font-size:30px;font-weight:700;line-height:1.35;letter-spacing:.01em;color:#fff}
@media(min-width:768px){.hero h1{font-size:38px}}
.hl{color:var(--accent);position:relative;display:inline-block}
.hl::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;background:repeating-linear-gradient(90deg,var(--accent) 0 6px,transparent 6px 12px)}
.hero-sub{margin-top:14px;font-size:15px;font-weight:600;color:#F0C9B4}
.hero-desc{margin-top:12px;max-width:72ch;font-size:15px;line-height:1.85;color:#CFC8DE}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.hero-trust{margin-top:14px;font-size:13px;color:#A9A2BC}
.hero-search{display:flex;align-items:center;margin-top:20px;max-width:420px;height:44px;border-radius:8px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.22);padding:0 6px 0 14px}
.hero-search input{flex:1;min-width:0;height:100%;border:0;background:transparent;color:#fff;font-size:14px;outline:none}
.hero-search input::placeholder{color:#B7B0C9}
.hero-search button{width:34px;height:34px;border:0;border-radius:6px;background:var(--accent);color:#fff;cursor:pointer;font-size:14px;line-height:1}
.hero-search button:hover{background:var(--accent2)}
.hero-figure{position:relative;margin-top:26px;border-radius:10px;overflow:hidden;border:1px solid rgba(255,255,255,.2)}
@media(min-width:1024px){.hero-figure{margin-top:0}}
.hero-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.hero-chip{position:absolute;right:10px;bottom:10px;display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.96);color:var(--deep);border-radius:8px;padding:6px 10px;font-size:12px;line-height:1.2;box-shadow:var(--sh)}
.hero-chip time{color:var(--muted);font-variant-numeric:tabular-nums}

/* 通用按钮与标签 */
.btn{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 22px;border-radius:8px;border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;transition:background 180ms ease-out,transform 180ms ease-out,color 180ms ease-out}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent2);transform:translateY(-1px)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:#F1ECE2;transform:translateY(-1px)}
.btn-light{border-color:rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-light:hover{background:rgba(255,255,255,.14);transform:translateY(-1px)}
.btn:focus-visible,a:focus-visible,summary:focus-visible,button:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.badge{display:inline-flex;align-items:center;height:20px;padding:0 6px;border-radius:6px;font-size:12px;font-weight:600;line-height:1;white-space:nowrap}
.badge-hd{background:#E4F0EE;color:#2F6D67}
.badge-bd{background:#E7E2F1;color:#4A3D74}
.badge-4k{border:1px solid var(--accent);color:var(--accent2)}
.badge-new{background:#F1ECE2;color:#4A4358}
.score{font-size:15px;font-weight:600;color:var(--accent);font-variant-numeric:tabular-nums;white-space:nowrap}
.score i{font-style:normal;font-size:10px;letter-spacing:1px;margin-left:3px}

/* 板块 */
.sec{padding:44px 0;border-top:1px solid var(--line)}
.sec:first-of-type{border-top:0}
@media(min-width:768px){.sec{padding:62px 0}}
@media(min-width:1024px){.sec{padding:76px 0}}
.band{background:var(--sand);border-radius:16px;padding:40px 18px;border-top:0}
@media(min-width:768px){.band{padding:52px 28px}}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:20px;flex-wrap:wrap}
.sec-head p{font-size:14px;color:var(--muted);margin-top:6px}
.more{font-size:14px;font-weight:600;color:var(--accent2);white-space:nowrap}
.more:hover{color:var(--accent)}

/* 痛点 */
.pain-grid{display:grid;gap:14px}
@media(min-width:768px){.pain-grid{grid-template-columns:1fr 1fr}}
.pain{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px 18px 20px}
.pain-no{display:block;font-size:28px;font-weight:700;line-height:1.1;color:transparent;-webkit-text-stroke:1px var(--ink);font-variant-numeric:tabular-nums;margin-bottom:10px}
.pain h3{margin-bottom:6px}
.pain p{font-size:14px;color:#544D62;line-height:1.8}

/* 解决方案 */
.sol{display:grid;gap:14px}
@media(min-width:1024px){.sol{grid-template-columns:1.35fr 1fr}}
.sol-big{background:var(--ink);color:#E9E5F2;border-radius:var(--r);padding:24px 22px}
.sol-big h3{color:#fff;font-size:20px;margin-bottom:12px}
.sol-big ul li{position:relative;padding-left:20px;font-size:14px;line-height:1.85;margin-bottom:8px}
.sol-big ul li::before{content:"";position:absolute;left:0;top:12px;width:7px;height:7px;border-radius:50%;background:var(--accent)}
.sol-side{display:grid;gap:14px}
.sol-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px 18px}
.sol-card h3{margin-bottom:6px;font-size:17px}
.sol-card p{font-size:14px;color:#544D62;line-height:1.8}

/* 卡片网格 */
.grid{display:grid;gap:14px;grid-template-columns:repeat(2,1fr)}
@media(min-width:768px){.grid{grid-template-columns:repeat(3,1fr)}}
@media(min-width:1024px){.grid{grid-template-columns:repeat(4,1fr)}}
.mv-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);transition:box-shadow 180ms ease-out,transform 180ms ease-out}
.mv-card:hover{box-shadow:var(--shh);transform:translateY(-2px)}
.mv-thumb{border-bottom:1px solid var(--line)}
.mv-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}
.mv-body{padding:12px 12px 14px}
.mv-name{font-size:14px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:40px}
.mv-meta{display:flex;align-items:center;justify-content:space-between;gap:6px;margin-top:8px}

/* 热门 */
.hot{display:grid;gap:14px}
@media(min-width:768px){.hot{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.hot{grid-template-columns:repeat(4,1fr)}.hot-big{grid-column:span 2}}
.hot-big{display:grid;grid-template-columns:112px 1fr;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);transition:box-shadow 180ms ease-out,transform 180ms ease-out}
.hot-big:hover{box-shadow:var(--shh);transform:translateY(-2px)}
.hot-big img{width:100%;height:100%;min-height:160px;object-fit:cover}
.hot-big .mv-body{display:flex;flex-direction:column;justify-content:center;padding:16px}
.hot-big h3{font-size:17px;margin-bottom:6px}
.hot-big p{font-size:13px;color:#544D62;line-height:1.7}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.tag{font-size:12px;color:#2F6D67;background:#E4F0EE;border-radius:6px;padding:2px 8px;line-height:1.6}

/* 分类频道 */
.chans{display:grid;gap:14px}
@media(min-width:768px){.chans{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.chans{grid-template-columns:repeat(5,1fr);gap:12px}}
.chan{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px 14px;box-shadow:var(--sh);transition:box-shadow 180ms ease-out,transform 180ms ease-out}
.chan:hover{box-shadow:var(--shh);transform:translateY(-2px)}
.chan h3{font-size:16px;margin-bottom:6px}
.chan p{font-size:13px;color:#544D62;line-height:1.7;flex:1}
.chan .more{display:inline-block;margin-top:12px;font-size:13px}

/* 排行榜 */
.rank{display:grid}
@media(min-width:1024px){.rank{grid-template-columns:1fr 1fr;column-gap:36px}}
.rk-list li{display:grid;grid-template-columns:26px minmax(0,1fr) 66px 38px;align-items:center;gap:10px;height:48px;padding:0 6px;border-bottom:1px solid var(--line);font-size:14px;transition:background 180ms ease-out}
@media(min-width:768px){.rk-list li{grid-template-columns:30px minmax(0,1fr) 86px 44px 62px;height:52px}}
.rk-list li:hover{background:#F9F6F0}
.rk-no{font-size:18px;font-weight:700;color:transparent;-webkit-text-stroke:1px var(--accent);font-variant-numeric:tabular-nums;line-height:1}
.rk-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}
.rk-bar{display:block;height:4px;border-radius:2px;background:#EDE8DE;overflow:hidden}
.rk-bar span{display:block;height:100%;background:var(--accent);border-radius:2px}
.rk-score{font-size:14px;font-weight:600;color:var(--accent);font-variant-numeric:tabular-nums;text-align:right}
.rk-cat{display:none}
@media(min-width:768px){.rk-cat{display:inline;font-size:12px;color:var(--muted)}}

/* 三步观看 */
.steps{display:grid;gap:14px}
@media(min-width:1024px){.steps{grid-template-columns:repeat(3,1fr);gap:20px}}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px 18px}
.step-no{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:var(--ink);color:#fff;font-size:14px;font-weight:600;margin-bottom:12px;font-variant-numeric:tabular-nums}
.step h3{font-size:16px;margin-bottom:6px}
.step p{font-size:14px;color:#544D62;line-height:1.8}

/* 数据 */
.stats{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(min-width:1024px){.stats{grid-template-columns:repeat(4,1fr)}}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px 14px;text-align:center}
.stat b{display:block;font-size:30px;font-weight:700;line-height:1.2;color:var(--ink);font-variant-numeric:tabular-nums}
@media(min-width:768px){.stat b{font-size:36px}}
.stat span{display:block;font-size:13px;color:var(--muted);margin-top:4px}
.stat small{display:block;font-size:12px;color:#9A93A6;margin-top:6px}

/* 评价 */
.voices{display:grid;gap:14px}
@media(min-width:768px){.voices{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.voices{grid-template-columns:1.25fr 1fr 1fr}}
.voice{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px 18px;box-shadow:var(--sh)}
.voice-top{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.ava{width:40px;height:40px;border-radius:50%;background:var(--sand);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:600;color:var(--ink);flex:none}
.voice-name{font-size:14px;font-weight:600;line-height:1.4}
.voice-stars{font-size:12px;color:var(--accent);letter-spacing:2px;line-height:1.4}
.voice p{font-size:14px;color:#544D62;line-height:1.8}
.voice-lg p{font-size:15px}
.voice-lg .ava{width:48px;height:48px;font-size:17px}

/* 适用人群 */
.aud{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media(min-width:1024px){.aud{grid-template-columns:repeat(4,1fr)}}
.aud-item{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px 16px}
.aud-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:8px;background:var(--sand);color:var(--ink);font-size:16px;font-weight:700;margin-bottom:10px}
.aud-item h3{font-size:15px;margin-bottom:4px}
.aud-item p{font-size:13px;color:#544D62;line-height:1.7}

/* 专题 */
.topics{display:grid;gap:12px}
.topic{display:grid;grid-template-columns:100px 1fr;gap:12px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:10px;transition:box-shadow 180ms ease-out,transform 180ms ease-out}
@media(min-width:768px){.topic{grid-template-columns:120px 1fr;gap:16px;padding:12px}}
.topic:hover{box-shadow:var(--shh);transform:translateY(-2px)}
.topic img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
.topic h3{font-size:15px;margin-bottom:4px}
.topic p{font-size:13px;color:#544D62;line-height:1.7}
.topic-meta{font-size:12px;color:var(--muted);margin-top:6px}

/* 资讯 */
.news{display:grid}
@media(min-width:768px){.news{grid-template-columns:1fr 1fr;column-gap:32px}}
.news li{display:grid;grid-template-columns:96px 1fr;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.news img{width:96px;height:64px;object-fit:cover;border-radius:8px}
.news h3{font-size:14px;font-weight:600;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news span{display:block;font-size:13px;color:var(--muted);margin-top:4px;font-variant-numeric:tabular-nums}

/* 更新节奏 */
.week{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
@media(min-width:768px){.week{grid-template-columns:repeat(7,1fr)}}
.day{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 6px 10px;text-align:center}
.day em{display:block;font-style:normal;font-size:13px;color:var(--muted)}
.day b{display:block;font-size:15px;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.6}
.day i{display:block;width:5px;margin:8px auto 0;border-radius:3px;background:var(--accent);opacity:.85}
.week-note{margin-top:14px;font-size:13px;color:var(--muted)}

/* 常见问答 */
.faq li{background:#fff;border:1px solid var(--line);border-radius:var(--r);margin-bottom:10px;overflow:hidden}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:12px;list-style:none;cursor:pointer;padding:14px 16px;font-size:15px;font-weight:600;line-height:1.6}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-size:19px;font-weight:400;line-height:1;flex:none}
.faq details[open] summary::after{content:"−"}
.faq p{padding:0 16px 16px;font-size:14px;color:#544D62;line-height:1.85}

/* 结尾转化 */
.cta{position:relative;overflow:hidden;background:var(--ink);border-radius:16px;color:#F3F0EA;padding:38px 22px;text-align:center}
.cta::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.6) 1px,transparent 1px);background-size:24px 24px;opacity:.14;pointer-events:none}
@media(min-width:768px){.cta{padding:56px 40px}}
.cta h2{position:relative;color:#fff}
.cta p{position:relative;margin-top:10px;font-size:15px;color:#CFC8DE}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:22px}
.cta-meta{position:relative;margin-top:16px;font-size:13px;color:#A9A2BC}

/* 页脚 */
.ftr{background:var(--ink);color:#CFC8DE;margin-top:40px}
.ftr-in{max-width:1240px;margin:0 auto;padding:40px 16px 18px}
@media(min-width:768px){.ftr-in{padding:52px 24px 20px}}
@media(min-width:1024px){.ftr-in{padding:56px 32px 20px}}
.ftr-grid{display:grid;gap:26px}
@media(min-width:768px){.ftr-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.ftr-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px}}
.ftr h3{color:#fff;font-size:15px;margin-bottom:12px}
.ftr-brand{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.ftr-brand .brand-mark{background:var(--accent)}
.ftr-brand span{color:#fff;font-size:16px;font-weight:600}
.ftr p,.ftr li{font-size:13px;line-height:1.9;color:#B4ADC6}
.ftr-links a{display:flex;align-items:center;min-height:32px;font-size:13px;color:#B4ADC6;transition:color 180ms ease-out}
.ftr-links a:hover{color:var(--accent)}
.ftr-bottom{max-width:1240px;margin:0 auto;padding:16px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;font-size:13px;color:#9A93A6}
@media(min-width:768px){.ftr-bottom{padding:16px 24px}}
@media(min-width:1024px){.ftr-bottom{padding:16px 32px}}