/* roulang page: index */
:root{
  --brand:#6B3FA0;
  --brand-dark:#4B2470;
  --brand-light:#F0E7FA;
  --green:#3F9E7C;
  --warm:#FF7A45;
  --bg:#FBF8FD;
  --alt:#F4EEFA;
  --footer:#241634;
  --text:#1F1730;
  --text2:#5C5270;
  --text3:#8B819C;
  --border:#ECE4F5;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow:0 6px 20px rgba(107,63,160,.08);
  --shadow-h:0 10px 26px rgba(107,63,160,.14);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-dark)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:0}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}

/* ===== header ===== */
.site-header{
  position:sticky;top:0;z-index:1030;height:68px;
  background:rgba(251,248,253,.88);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  transition:box-shadow .2s ease,border-color .2s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{border-bottom-color:var(--border);box-shadow:0 4px 16px rgba(107,63,160,.08)}
.header-inner{height:68px;display:flex;align-items:center;gap:24px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.logo:hover{color:var(--text)}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand);
  color:#fff;font-size:16px;font-weight:800;display:flex;align-items:center;justify-content:center;
}
.logo-txt{display:flex;flex-direction:column;line-height:1.2;font-size:17px;font-weight:800;color:var(--brand-dark)}
.logo-txt small{font-size:11px;font-weight:400;color:var(--text3);letter-spacing:0}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-main a{
  display:inline-flex;align-items:center;height:38px;padding:0 12px;border-radius:8px;
  font-size:15px;color:var(--text2);font-weight:500;
}
.nav-main a:hover{color:var(--brand);background:var(--brand-light)}
.nav-main a.active{color:var(--brand-dark);background:var(--brand-light);font-weight:600}
.header-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  background:#fff;border:1px solid var(--border);border-radius:999px;color:var(--text3);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 2px rgba(107,63,160,.14)}
.search input{border:0;outline:0;background:transparent;width:150px;font-size:14px;color:var(--text)}
.search input::placeholder{color:var(--text3)}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:10px;
  background:#fff;color:var(--brand-dark);font-size:20px;line-height:1;align-items:center;justify-content:center;
}
.offcanvas{background:var(--bg);max-width:330px}
.offcanvas-header{border-bottom:1px solid var(--border);padding:16px 20px}
.offcanvas-title{font-size:17px;font-weight:800;color:var(--brand-dark)}
.offcanvas-body{padding:12px 20px 28px}
.drawer-nav a{
  display:flex;align-items:center;height:48px;padding:0 14px;border-radius:8px;
  font-size:16px;color:var(--text2);border-left:3px solid transparent;
}
.drawer-nav a.active{color:var(--brand-dark);font-weight:600;border-left-color:var(--brand);background:var(--brand-light)}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;margin:16px 0;background:#fff;border:1px solid var(--border);border-radius:10px}
.drawer-search input{border:0;outline:0;background:transparent;width:100%;font-size:14px;color:var(--text)}

/* ===== buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;
  border-radius:var(--r-btn);font-size:16px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all .18s ease;white-space:nowrap;
}
.btn-sm{min-height:40px;padding:0 16px;font-size:15px}
.btn-primary{background:var(--brand-dark);color:#fff}
.btn-primary:hover{background:#3A1B58;color:#fff;transform:translateY(-1px)}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark)}
.btn-warm{background:var(--warm);color:#fff}
.btn-warm:hover{background:#EA6430;color:#fff;transform:translateY(-1px)}
.btn-light{border-color:rgba(255,255,255,.6);color:#fff;background:transparent}
.btn-light:hover{background:rgba(255,255,255,.12);color:#fff}

/* ===== layout ===== */
.sec{padding:88px 0}
.sec-alt{background:var(--alt)}
.sec-white{background:#fff}
.sec-head{max-width:720px;margin-bottom:36px}
.sec-head h2{font-size:32px;font-weight:700;color:var(--brand-dark)}
.sec-head p{margin-top:12px;font-size:16px;color:var(--text2);line-height:1.8}
.grid{display:grid;gap:24px}
.g-7-5{grid-template-columns:7fr 5fr}
.g-8-4{grid-template-columns:8fr 4fr}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--shadow);transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;
}
.card:hover{border-color:rgba(107,63,160,.4);box-shadow:var(--shadow-h);transform:translateY(-2px)}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  background:var(--brand-light);color:var(--brand);font-size:14px;
}
.tag-green{background:rgba(63,158,124,.12);color:var(--green)}
.thumb{
  position:relative;display:block;border-radius:var(--r-img);overflow:hidden;
  background:var(--alt);aspect-ratio:16/9;
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .thumb img{transform:scale(1.02)}
.dur{
  position:absolute;right:10px;bottom:10px;padding:2px 9px;border-radius:999px;
  background:rgba(36,22,52,.82);color:#fff;font-size:12px;line-height:1.6;
}

/* ===== hero ===== */
.hero{background:linear-gradient(180deg,#F1E8FA 0%,var(--bg) 100%);padding:56px 0 64px}
.hero-inner{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.badge-soft{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--border);color:var(--brand);font-size:14px;
}
.badge-soft i{width:8px;height:8px;border-radius:50%;background:var(--green);display:block}
.hero h1{font-size:44px;font-weight:800;color:var(--brand-dark);margin:18px 0 16px}
.hero-sub{font-size:16px;color:var(--text2);line-height:1.8;max-width:560px}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--border);font-size:14px;color:var(--text2);
}
.pill b{color:var(--brand-dark);font-weight:700;margin-right:6px;font-variant-numeric:tabular-nums}
.hero-media{
  position:relative;border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;
  box-shadow:0 10px 30px rgba(107,63,160,.16);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.play-dot{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:64px;height:64px;border-radius:50%;background:rgba(75,36,112,.86);
  display:flex;align-items:center;justify-content:center;
}
.play-dot::after{
  content:"";display:block;margin-left:5px;
  border-left:18px solid #fff;border-top:11px solid transparent;border-bottom:11px solid transparent;
}

/* ===== countdown ===== */
.sec-countdown{padding:0 0 48px}
.cd-bar{
  display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:center;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--shadow);padding:26px 30px;
}
.cd-text h2{font-size:22px;font-weight:700;color:var(--brand-dark)}
.cd-text p{font-size:15px;color:var(--text2);margin-top:8px}
.cd-num{
  font-size:38px;font-weight:800;color:var(--brand);letter-spacing:0;
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.cd-prog{margin-top:10px}
.bar{height:8px;border-radius:999px;background:var(--alt);overflow:hidden}
.bar i{display:block;height:100%;border-radius:999px;background:var(--green)}
.cd-prog span{display:block;font-size:13px;color:var(--text3);margin-top:8px}

/* ===== pain ===== */
.pain-wrap{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.pain-head{text-align:right}
.pain-head h2{font-size:32px;font-weight:700;color:var(--brand-dark)}
.pain-head p{margin-top:14px;font-size:16px;color:var(--text2)}
.pain-list{display:flex;flex-direction:column;gap:20px}
.pain-item{display:flex;gap:16px;align-items:flex-start}
.pain-item .num{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;border:1px solid rgba(107,63,160,.3);
  color:var(--brand);font-weight:700;font-size:15px;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.pain-item h3{font-size:18px;font-weight:600;color:var(--text)}
.pain-item p{font-size:15px;color:var(--text2);margin-top:2px}

/* ===== solve ===== */
.solve-list{display:flex;flex-direction:column;gap:14px;margin-top:8px}
.solve-row{
  display:grid;grid-template-columns:180px 40px 1fr;gap:16px;align-items:center;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:18px 22px;box-shadow:var(--shadow);
}
.solve-pain{font-size:15px;font-weight:600;color:var(--brand-dark)}
.solve-arrow{color:var(--brand);font-size:18px;text-align:center}
.solve-fix{font-size:15px;color:var(--text2)}

/* ===== channel ===== */
.ch-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.ch-item{
  display:block;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow);transition:all .2s ease;color:var(--text);
}
.ch-item:hover{border-color:rgba(107,63,160,.4);box-shadow:var(--shadow-h);transform:translateY(-2px);color:var(--text)}
.ch-item h3{font-size:17px;font-weight:600;color:var(--brand-dark)}
.ch-item p{font-size:14px;color:var(--text2);margin-top:6px}
.ch-more{display:inline-flex;align-items:center;margin-top:24px;font-size:15px;font-weight:600;color:var(--brand)}
.ch-more:hover{color:var(--brand-dark)}

/* ===== steps ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:12px}
.step{position:relative;padding:0 24px 0 0}
.step::before{
  content:"";position:absolute;top:11px;left:26px;right:0;border-top:1px dashed rgba(107,63,160,.35);
}
.step:last-child::before{display:none}
.step-dot{
  position:relative;z-index:1;width:24px;height:24px;border-radius:50%;
  background:var(--brand);color:#fff;font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
}
.step h3{font-size:18px;font-weight:600;margin-top:18px;color:var(--text)}
.step p{font-size:15px;color:var(--text2);margin-top:6px}

/* ===== videos ===== */
.hcard{
  display:grid;grid-template-columns:8fr 4fr;gap:0;overflow:hidden;margin-bottom:24px;
}
.hcard .thumb{aspect-ratio:16/9;border-radius:0;height:100%}
.hcard-body{padding:24px;display:flex;flex-direction:column;justify-content:center;gap:12px}
.hcard-body h3{font-size:22px;font-weight:700;color:var(--brand-dark)}
.hcard-body p{font-size:15px;color:var(--text2)}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.vcard{overflow:hidden}
.vcard .thumb{border-radius:0}
.vcard-body{padding:14px 16px 18px}
.vcard-body h3{font-size:16px;font-weight:600;color:var(--text)}
.vcard-body h3 a{color:var(--text)}
.vcard-body h3 a:hover{color:var(--brand)}
.vcard-body .tags{margin-top:10px}

/* ===== topics ===== */
.topic-card{overflow:hidden;display:grid;grid-template-columns:8fr 4fr;margin-bottom:24px}
.topic-card .thumb{border-radius:0;height:100%;aspect-ratio:16/9}
.topic-text{padding:26px}
.topic-text h3{font-size:20px;font-weight:700;color:var(--brand-dark)}
.topic-text > p{font-size:15px;color:var(--text2);margin-top:8px}
.topic-list{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.topic-list a{font-size:15px;color:var(--brand);border-bottom:1px dashed rgba(107,63,160,.25);padding-bottom:6px}
.topic-list a:hover{color:var(--brand-dark);border-bottom-color:var(--brand)}

/* ===== stats ===== */
.sec-dark{background:var(--footer);color:#fff;padding:64px 0}
.sec-dark .sec-head h2{color:#fff}
.sec-dark .sec-head p{color:rgba(255,255,255,.72)}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat b{
  display:block;font-size:36px;font-weight:800;color:#fff;line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.stat span{display:block;font-size:12px;color:rgba(255,255,255,.66);margin-top:8px}

/* ===== play ===== */
.play-media{border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;box-shadow:var(--shadow)}
.play-media img{width:100%;height:100%;object-fit:cover}
.play-list{display:flex;flex-direction:column;gap:20px}
.play-item{border-left:3px solid var(--brand);padding-left:16px}
.play-item h3{font-size:18px;font-weight:600;color:var(--text)}
.play-item p{font-size:15px;color:var(--text2);margin-top:4px}

/* ===== quotes ===== */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.quote-card{padding:24px;position:relative}
.quote-card .mark{font-size:34px;font-weight:800;color:rgba(107,63,160,.22);line-height:1;display:block}
.quote-card p{font-size:15px;color:var(--text2);margin-top:8px}
.quote-meta{margin-top:16px;display:flex;align-items:center;gap:10px}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}
.quote-meta strong{font-size:15px;font-weight:600;color:var(--text);display:block;line-height:1.3}
.quote-meta em{font-style:normal;font-size:13px;color:var(--text3)}

/* ===== people ===== */
.people-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.person-card{padding:22px;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--shadow)}
.person-card h3{font-size:17px;font-weight:600;color:var(--brand-dark)}
.person-card p{font-size:15px;color:var(--text2);margin-top:6px}

/* ===== news ===== */
.news-card{padding:24px;display:flex;flex-direction:column;gap:10px}
.news-date{font-size:13px;color:var(--text3);font-variant-numeric:tabular-nums}
.news-card h3{font-size:18px;font-weight:600;color:var(--text)}
.news-card h3 a{color:var(--text)}
.news-card h3 a:hover{color:var(--brand)}
.news-card p{font-size:15px;color:var(--text2)}
.news-card .more{font-size:14px;font-weight:600;color:var(--brand);margin-top:auto}

/* ===== metrics ===== */
.metric{margin-bottom:24px}
.metric-top{display:flex;justify-content:space-between;align-items:baseline;font-size:15px;color:var(--text2)}
.metric-top b{color:var(--brand-dark);font-variant-numeric:tabular-nums}
.metric-bar{height:10px;border-radius:999px;background:var(--alt);margin-top:10px;overflow:hidden}
.metric-bar i{display:block;height:100%;border-radius:999px;background:var(--green)}

/* ===== calendar ===== */
.week-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:12px}
.day{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-img);
  padding:16px 10px;text-align:center;box-shadow:var(--shadow);
}
.day span{display:block;font-size:13px;color:var(--text3)}
.day b{display:block;font-size:20px;font-weight:700;color:var(--brand-dark);margin-top:6px;font-variant-numeric:tabular-nums}
.day em{display:block;font-style:normal;font-size:12px;color:var(--text3);margin-top:2px}
.day.active{background:var(--brand-dark);border-color:var(--brand-dark)}
.day.active span,.day.active em{color:rgba(255,255,255,.7)}
.day.active b{color:#fff}
.cal-note{font-size:14px;color:var(--text2);margin-top:16px}

/* ===== rank ===== */
.rank-list{display:flex;flex-direction:column;gap:10px}
.rank-item{
  display:grid;grid-template-columns:44px 1fr auto;gap:16px;align-items:center;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-img);
  padding:14px 20px;box-shadow:var(--shadow);transition:all .2s ease;
}
.rank-item:hover{border-color:rgba(107,63,160,.4);box-shadow:var(--shadow-h)}
.rank-no{font-size:16px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums}
.rank-name{font-size:16px;color:var(--text)}
.rank-val{font-size:14px;color:var(--text3);font-variant-numeric:tabular-nums}

/* ===== faq ===== */
.accordion-item{
  border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;
  margin-bottom:12px;background:#fff;box-shadow:var(--shadow);
}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--text);background:#fff;
  padding:18px 20px;box-shadow:none !important;
}
.accordion-button:not(.collapsed){background:var(--brand-light);color:var(--brand-dark)}
.accordion-button:focus{box-shadow:0 0 0 2px rgba(107,63,160,.25) !important}
.accordion-button::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%236B3FA0'%3E%3Cpath d='M8 11.5 1.5 5h13z'/%3E%3C/svg%3E");
}
.accordion-body{font-size:15px;color:var(--text2);line-height:1.8;padding:16px 20px 20px}

/* ===== final cta ===== */
.cta-final{background:var(--footer);color:#fff;padding:80px 0;text-align:center}
.cta-final h2{font-size:36px;font-weight:800;color:#fff}
.cta-final p{font-size:17px;color:rgba(255,255,255,.75);margin-top:14px}
.cta-final .btn-row{justify-content:center}
.cta-note{font-size:13px;color:rgba(255,255,255,.55);margin-top:22px}

/* ===== footer ===== */
.site-footer{background:var(--footer);color:rgba(255,255,255,.72);padding:56px 0 0;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.f-brand .logo-txt{color:#fff}
.f-brand .logo-txt small{color:rgba(255,255,255,.5)}
.f-brand p{font-size:14px;margin-top:14px;max-width:300px;line-height:1.8}
.f-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.f-col li{margin-bottom:10px}
.f-col a{font-size:14px;color:rgba(255,255,255,.66)}
.f-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;font-size:13px;color:rgba(255,255,255,.5)}

/* ===== responsive ===== */
@media (max-width:1024px){
  .sec{padding:64px 0}
  .nav-main{display:none}
  .search{display:none}
  .menu-toggle{display:flex}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:36px}
  .hero-media{max-width:640px}
  .cd-bar{grid-template-columns:1fr;gap:16px}
  .pain-wrap{grid-template-columns:1fr;gap:32px}
  .pain-head{text-align:left}
  .g-4,.ch-grid,.steps,.stats-row{grid-template-columns:repeat(2,1fr)}
  .g-3,.quote-grid,.people-grid{grid-template-columns:repeat(2,1fr)}
  .g-7-5,.g-8-4,.hcard,.topic-card,.play-wrap{grid-template-columns:1fr}
  .step::before{display:none}
  .step{padding:0 0 24px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .week-grid{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:768px){
  .sec{padding:48px 0}
  .sec-head h2,.pain-head h2{font-size:24px}
  .hero{padding:36px 0 44px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15px}
  .sec-head p,.cd-text p{font-size:15px}
  .g-3,.g-4,.ch-grid,.steps,.stats-row,.quote-grid,.people-grid{grid-template-columns:1fr}
  .solve-row{grid-template-columns:1fr;gap:8px}
  .solve-arrow{display:none}
  .cd-num{font-size:30px}
  .topic-card .thumb,.hcard .thumb{aspect-ratio:16/9}
  .cta-final h2{font-size:26px}
  .cta-final p{font-size:15px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .week-grid{grid-template-columns:repeat(4,1fr);gap:8px}
  .rank-item{grid-template-columns:36px 1fr;row-gap:4px}
  .rank-val{grid-column:2}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .header-inner{gap:12px}
  .logo-txt{font-size:15px}
  .logo-txt small{display:none}
  .header-right .btn{min-height:38px;padding:0 12px;font-size:14px}
  .hero h1{font-size:26px}
  .btn-row{flex-direction:column;align-items:stretch}
  .btn-row .btn{width:100%}
  .pill-row{gap:8px}
  .pill{font-size:13px;height:30px;padding:0 12px}
  .cd-bar{padding:20px}
  .stats-row{gap:20px}
  .stat b{font-size:28px}
  .week-grid{grid-template-columns:repeat(3,1fr)}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}