/* roulang page: index */
:root{
  --red:#D6412C;--red-deep:#8E2318;--green:#2E7D6B;--orange:#FF9A3C;
  --bg:#FFF8F3;--bg-alt:#FFEFE7;--dark:#1E1512;
  --text:#2A1E18;--muted:#6B5A51;--line:#F0DDD3;
  --r-lg:24px;--r-md:18px;--r-sm:14px;
  --sd:0 8px 24px rgba(120,50,20,.08);
  --sd-h:0 14px 34px rgba(120,50,20,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.2px}
p{margin:0}
:focus-visible{outline:2px solid var(--red);outline-offset:3px;border-radius:8px}
.wrap{width:min(1160px,100% - 40px);margin-inline:auto}
section[id]{scroll-margin-top:88px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:12px 26px;border-radius:999px;font-size:15px;font-weight:700;border:1px solid transparent;transition:background .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease)}
.btn-primary{background:var(--red);color:#fff;box-shadow:0 8px 18px rgba(214,65,44,.24)}
.btn-primary:hover{background:var(--red-deep);transform:translateY(-1px)}
.btn-ghost{border-color:var(--red);color:var(--red);background:transparent}
.btn-ghost:hover{background:#FFE3D9}
.btn-sm{padding:10px 20px;font-size:14px}

/* header */
.site-header{position:sticky;top:0;z-index:900;background:rgba(255,248,243,.93);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:box-shadow .2s}
.site-header.stuck{box-shadow:0 4px 18px rgba(120,50,20,.09)}
.nav-bar{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;white-space:nowrap}
.logo-mark{width:40px;height:40px;border-radius:12px;background:var(--red);display:grid;place-items:center;flex:none;box-shadow:0 6px 14px rgba(214,65,44,.28)}
.nav-links{display:flex;gap:2px;margin-left:auto}
.nav-links a{display:block;padding:8px 12px;border-radius:999px;font-size:15px;color:var(--muted);transition:background .18s,color .18s}
.nav-links a:hover{background:var(--bg-alt);color:var(--text)}
.nav-links a.active{background:#FFE3D9;color:var(--red);font-weight:700}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-link-plain{font-size:15px;color:var(--muted);transition:color .18s}
.nav-link-plain:hover{color:var(--red)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;font-size:20px;line-height:1}

/* drawer */
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);background:#fff;z-index:1100;transform:translateX(103%);transition:transform .26s var(--ease);display:flex;flex-direction:column;gap:18px;padding:20px;box-shadow:-18px 0 40px rgba(30,21,18,.18)}
.drawer.open{transform:none}
.drawer-mask{position:fixed;inset:0;background:rgba(30,21,18,.45);z-index:1050;opacity:0;pointer-events:none;transition:opacity .26s}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;font-weight:800;font-size:16px}
.drawer-head button{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);font-size:20px;line-height:1}
.drawer-links{display:grid;gap:4px}
.drawer-links a{padding:12px 14px;border-radius:12px;font-size:15px;color:var(--muted)}
.drawer-links a:hover{background:var(--bg-alt);color:var(--red)}

/* hero */
.hero{padding:56px 0 88px;background:radial-gradient(120% 78% at 50% -12%,#FFE9DF 0%,var(--bg) 62%)}
.hero-head{text-align:center;max-width:780px;margin:0 auto 46px}
.hero-head .eyebrow{margin-bottom:16px}
.hero h1{font-size:clamp(30px,4.2vw,52px);line-height:1.2;margin-bottom:16px}
.hero h1 span{color:var(--red)}
.hero-sub{font-size:clamp(16px,1.6vw,19px);font-weight:700;color:var(--red-deep);margin-bottom:14px}
.hero-desc{font-size:15px;color:var(--muted);max-width:34em;margin:0 auto}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.4px;color:var(--red);background:#FFE3D9;padding:5px 14px;border-radius:999px}
.hero-stage-row{display:grid;grid-template-columns:1fr auto 1fr;gap:34px;align-items:center}
.hero-points{display:flex;flex-direction:column;gap:14px;justify-self:end;width:100%;max-width:280px}
.hero-points li{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:12px 14px;box-shadow:var(--sd);transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
.hero-points li:hover{transform:translateY(-2px);box-shadow:var(--sd-h)}
.hero-points b{display:block;font-size:15px;line-height:1.45}
.hero-points small{display:block;font-size:13px;color:var(--muted);line-height:1.55}
.pt-ico{width:34px;height:34px;flex:none;border-radius:10px;display:grid;place-items:center;background:#FFE3D9;color:var(--red);font-weight:800;font-size:15px}
.hero-stage{position:relative;width:min(300px,76vw);transform:rotate(-2deg);justify-self:center}
.hero-stage img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:26px;border:3px solid var(--red);box-shadow:0 22px 48px rgba(120,50,20,.22)}
.hero-badge{position:absolute;left:-10px;top:18px;display:inline-flex;align-items:center;gap:6px;background:var(--red);color:#fff;font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;box-shadow:0 6px 14px rgba(214,65,44,.3)}
.hero-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:#fff;animation:breathe 1.8s ease-in-out infinite}
.hero-dl{display:flex;flex-direction:column;gap:12px;justify-self:start;width:100%;max-width:250px}
.hero-dl p{font-size:13px;color:var(--muted);text-align:center}
@keyframes breathe{50%{opacity:.35}}

/* section base */
.sec{padding:88px 0}
.sec-alt{background:var(--bg-alt)}
.sec-dark{background:var(--dark);color:#F6ECE6}
.sec-head{max-width:660px;margin-bottom:36px}
.sec-head h2{font-size:clamp(23px,2.6vw,32px);margin-bottom:12px}
.sec-head p{color:var(--muted);font-size:15px}
.sec-dark .sec-head p{color:#C4B0A6}
.sec-dark .eyebrow{background:rgba(255,154,60,.18);color:var(--orange)}
.more-link{display:inline-flex;align-items:center;gap:6px;margin-top:28px;color:var(--red);font-weight:700;font-size:15px;transition:color .18s}
.more-link:hover{color:var(--red-deep)}

/* live cards */
.live-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.live-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sd);transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
.live-card:hover{transform:translateY(-2px);box-shadow:var(--sd-h)}
.thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#F6E7DE}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .18s var(--ease)}
.live-card:hover .thumb img{transform:scale(1.03)}
.tag{position:absolute;left:10px;top:10px;background:rgba(255,255,255,.95);color:var(--green);font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px}
.live-dot{position:absolute;right:10px;top:10px;display:inline-flex;align-items:center;gap:6px;background:rgba(30,21,18,.72);color:#fff;font-size:12px;padding:3px 10px;border-radius:999px}
.live-dot::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--red);animation:breathe 1.8s ease-in-out infinite}
.live-body{padding:14px 16px 16px}
.live-body h3{font-size:16px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.live-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted)}
.live-meta b{color:#C25E0C;font-weight:700}

/* features */
.feat-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:22px}
.feat-main{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sd);display:flex;flex-direction:column}
.feat-main img{width:100%;aspect-ratio:16/8;object-fit:cover}
.feat-main .fc{padding:24px 26px 28px}
.feat-main h3{font-size:20px;margin-bottom:10px}
.feat-main p{color:var(--muted);font-size:15px}
.feat-side{display:grid;gap:22px}
.feat-card{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sd);transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
.feat-card:hover{transform:translateY(-2px);box-shadow:var(--sd-h)}
.feat-ico{width:44px;height:44px;flex:none;border-radius:14px;background:#E6F2EE;color:var(--green);display:grid;place-items:center;font-weight:800;font-size:16px}
.feat-card h3{font-size:17px;margin-bottom:6px}
.feat-card p{font-size:14px;color:var(--muted)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sd);transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
.step:hover{transform:translateY(-2px);box-shadow:var(--sd-h)}
.step-no{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--red),var(--orange));color:#fff;display:grid;place-items:center;font-weight:800;font-size:15px;margin-bottom:14px}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted)}
.step img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;margin-top:16px}

/* channels */
.channels{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.ch-item{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px;transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s}
.ch-item:hover{transform:translateY(-2px);box-shadow:var(--sd);border-color:#F3C7B7}
.ch-ico{width:42px;height:42px;flex:none;border-radius:13px;display:grid;place-items:center;background:#FFE3D9;color:var(--red);font-weight:800;font-size:15px}
.ch-item h3{font-size:17px;margin-bottom:6px}
.ch-item p{font-size:14px;color:var(--muted)}

/* upcoming */
.upcoming{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sd)}
.up-item{display:flex;align-items:center;gap:18px;padding:16px 22px;border-bottom:1px solid var(--line);transition:background .18s}
.up-item:last-child{border-bottom:0}
.up-item:hover{background:#FFF6F0}
.time-chip{flex:none;min-width:104px;text-align:center;background:#FFEEDC;color:#B45A0B;font-weight:800;font-size:14px;padding:7px 10px;border-radius:11px}
.up-item h3{flex:1;font-size:16px;font-weight:700;min-width:0;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.up-cat{flex:none;font-size:13px;color:var(--green);background:#E6F2EE;padding:3px 10px;border-radius:999px}

/* rank */
.rank-list{display:grid;gap:6px}
.rank-item{display:grid;grid-template-columns:44px 1fr 120px 96px;align-items:center;gap:14px;padding:11px 16px;border-radius:14px;transition:background .18s}
.rank-item:hover{background:rgba(255,255,255,.06)}
.rank-no{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;font-weight:800;font-size:14px;color:#fff;background:rgba(255,255,255,.14)}
.rank-item:nth-child(1) .rank-no,.rank-item:nth-child(2) .rank-no,.rank-item:nth-child(3) .rank-no{background:linear-gradient(135deg,var(--red),var(--orange))}
.rank-name{font-weight:700;font-size:15px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rank-num{color:var(--orange);font-weight:700;font-size:14px;text-align:right}
.rank-cat{font-size:13px;color:#C4B0A6;text-align:right}

/* compare */
.cmp-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;box-shadow:var(--sd)}
.cmp-table{width:100%;min-width:640px;border-collapse:collapse;font-size:15px}
.cmp-table th,.cmp-table td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line)}
.cmp-table thead th{background:var(--bg-alt);font-size:14px;font-weight:800}
.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table .us{background:#EAF4F0;color:#1F5B4E;font-weight:600}
.cmp-table .us::before{content:"✓";color:var(--green);font-weight:800;margin-right:8px}

/* news */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.news-item{display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:12px;transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--sd)}
.news-item img{width:96px;height:64px;object-fit:cover;border-radius:10px;flex:none}
.news-item h3{font-size:15px;line-height:1.5;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item time{font-size:13px;color:var(--muted)}

/* social */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:36px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px;text-align:center;box-shadow:var(--sd)}
.stat b{display:block;font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.1;color:var(--red);margin-bottom:6px}
.stat span{font-size:13px;color:var(--muted)}
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.quote{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sd)}
.quote p{font-size:15px;margin-bottom:16px}
.quote footer{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.avatar{width:34px;height:34px;border-radius:50%;background:#FFE3D9;color:var(--red);display:grid;place-items:center;font-weight:800;font-size:14px;flex:none}

/* guarantee */
.guarantee-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.g-item{text-align:center;padding:24px 16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md)}
.g-ico{width:52px;height:52px;border-radius:50%;background:#E6F2EE;color:var(--green);display:grid;place-items:center;margin:0 auto 14px;font-size:18px;font-weight:800}
.g-item h3{font-size:16px;margin-bottom:8px}
.g-item p{font-size:13px;color:var(--muted)}

/* faq */
.faq-list{display:grid;gap:12px;max-width:840px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 22px;font-weight:700;font-size:16px;display:flex;align-items:center;justify-content:space-between;gap:16px;transition:color .18s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--red);font-size:22px;font-weight:800;line-height:1;flex:none}
.faq-item[open] summary::after{content:"–"}
.faq-item[open] summary{color:var(--red-deep)}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--muted)}

/* cta */
.cta-sec{padding:100px 0;background:var(--bg-alt);text-align:center}
.cta-inner{max-width:640px;margin:0 auto}
.cta-inner h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.cta-inner .lead{color:var(--muted);margin-bottom:28px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:28px}
.qr{width:132px;height:132px;object-fit:cover;border-radius:16px;border:1px solid var(--line);margin:0 auto;box-shadow:var(--sd)}
.cta-inner small{display:block;margin-top:12px;font-size:13px;color:var(--muted)}

/* sticky bar */
.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:800;background:rgba(255,248,243,.94);backdrop-filter:blur(10px);border-top:1px solid var(--line);box-shadow:0 -6px 18px rgba(120,50,20,.07)}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px 0}
.sticky-inner p{font-size:15px;font-weight:700}

/* footer */
.site-footer{background:var(--dark);color:#D8C8BF;padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:44px}
.foot-brand .logo{color:#fff;margin-bottom:14px}
.foot-brand .logo-mark{box-shadow:none}
.foot-brand p{font-size:14px;color:#B8A49A;max-width:28em}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:14px}
.foot-links{display:grid;gap:10px;font-size:14px}
.foot-links a{color:#B8A49A;transition:color .18s}
.foot-links a:hover{color:#fff}
.foot-links span{color:#9C8A80}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0 88px;font-size:13px;color:#9C8A80;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* responsive */
@media (max-width:1024px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .live-grid{grid-template-columns:repeat(3,1fr)}
  .feat-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .channels{grid-template-columns:repeat(2,1fr)}
  .quotes{grid-template-columns:1fr}
  .guarantee-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .hero-stage-row{grid-template-columns:1fr;gap:28px;justify-items:center}
  .hero-points{justify-self:center;max-width:420px}
  .hero-dl{justify-self:center;max-width:320px;width:100%}
}
@media (max-width:768px){
  .sec{padding:56px 0}
  .hero{padding:40px 0 60px}
  .live-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .rank-item{grid-template-columns:40px 1fr auto;gap:10px}
  .rank-cat{display:none}
  .up-item{flex-wrap:wrap;gap:10px}
  .up-item h3{flex-basis:100%;order:3}
  .sticky-bar{display:none}
  .foot-bottom{padding:20px 0}
  .cta-sec{padding:64px 0}
}
@media (max-width:520px){
  .wrap{width:calc(100% - 32px)}
  .live-grid{grid-template-columns:1fr}
  .channels{grid-template-columns:1fr}
  .guarantee-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .news-item img{width:80px;height:56px}
  .rank-item{grid-template-columns:36px 1fr auto;padding:10px 8px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}