/* roulang page: index */
:root{
  --ink:#0B1210;
  --panel:#16211C;
  --line-d:#2A382F;
  --txt-d:#F3F7F4;
  --mut-d:#9FB2A7;
  --paper:#F4F1E8;
  --paper-2:#EDE9DD;
  --card-l:#FFFDF7;
  --txt-l:#121813;
  --mut-l:#5D6B62;
  --line-l:#D9D3C4;
  --mint:#2DE2B6;
  --mint-d:#17C79A;
  --amber:#F3B64B;
  --red:#FF5C6C;
  --radius:14px;
  --shadow-d:0 10px 30px rgba(0,0,0,.18);
  --shadow-l:0 8px 24px rgba(18,24,19,.06);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--paper);color:var(--txt-l);font-size:16px;line-height:1.7;
  -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}
input,select{font:inherit}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.sec{padding:88px 0;scroll-margin-top:88px}
.sec-dark{background:var(--ink);color:var(--txt-d);position:relative;overflow:hidden}
.sec-dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(0deg,rgba(243,247,244,.04) 0 1px,transparent 1px 4px);
}
.sec-dark .container{position:relative;z-index:1}
.sec-paper{background:var(--paper)}
.sec-paper2{background:var(--paper-2)}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.12em;
  color:var(--mint);border:1px solid var(--line-d);border-radius:999px;padding:5px 12px;
  text-transform:uppercase;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--red);display:inline-block}
.h2{font-size:34px;line-height:1.25;font-weight:700;letter-spacing:-.01em}
.sec-dark .h2{color:var(--txt-d)}
.h2 .hl{color:var(--mint-d)}
.sec-dark .h2 .hl{color:var(--mint)}
.lead{margin-top:14px;font-size:15px;line-height:1.75;color:var(--mut-l);max-width:640px}
.sec-dark .lead{color:var(--mut-d)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
.sec-head .more{font-size:14px;color:var(--mint-d);font-weight:600;white-space:nowrap}
.sec-head .more span{display:inline-block;transition:transform .18s}
.sec-head .more:hover span{transform:translateX(3px)}
.sec-dark .sec-head .more{color:var(--mint)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:10px;font-size:15px;font-weight:600;
  border:1px solid transparent;transition:background .18s,color .18s,border-color .18s,transform .18s;
}
.btn-primary{background:var(--mint);color:#06231C}
.btn-primary:hover{background:var(--mint-d);transform:translateY(-1px)}
.btn-ghost-d{border-color:#3A4A42;color:#fff}
.btn-ghost-d:hover{border-color:var(--mint);color:var(--mint)}
.btn-ghost-l{border-color:#C9C3B3;color:var(--txt-l)}
.btn-ghost-l:hover{border-color:var(--mint-d);color:var(--mint-d)}

/* header */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--ink);
  border-bottom:1px solid var(--line-d);transition:height .2s;
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.site-header.compact .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo{
  width:36px;height:36px;border-radius:10px;background:var(--mint);color:#06231C;
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;letter-spacing:-.02em;
}
.brand-name{font-size:15px;font-weight:700;color:var(--txt-d);white-space:nowrap}
.nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav a.nav-link{
  font-size:14px;color:var(--mut-d);position:relative;padding:6px 0;transition:color .18s;
}
.nav a.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--mint);
  transform:scaleX(0);transform-origin:left;transition:transform .18s;
}
.nav a.nav-link:hover{color:var(--mint)}
.nav a.nav-link:hover::after{transform:scaleX(1)}
.header-cta{flex:0 0 auto;margin-left:8px}
.burger{display:none;width:44px;height:44px;margin-left:auto;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.burger span{display:block;width:20px;height:2px;background:var(--txt-d);transition:transform .2s,opacity .2s}
.burger.on span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.on span:nth-child(2){opacity:0}
.burger.on span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* hero */
.hero{padding:72px 0 84px}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero h1{
  font-size:60px;line-height:1.05;font-weight:800;letter-spacing:-.02em;margin-top:18px;color:var(--txt-d);
}
.hero h1 .hl{color:var(--mint)}
.hero-sub{margin-top:16px;font-size:17px;color:var(--txt-d);font-weight:600}
.hero-desc{margin-top:12px;font-size:15px;line-height:1.8;color:var(--mut-d);max-width:520px}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.chip{
  font-size:13px;padding:5px 12px;border-radius:999px;border:1px solid var(--line-d);
  color:var(--mut-d);transition:.18s;
}
.chip:hover{color:var(--mint);border-color:var(--mint)}
.hero-visual{
  position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--line-d);
  aspect-ratio:4/3;box-shadow:var(--shadow-d);background:#0f1a16;
}
.hero-visual img{width:100%;height:100%;object-fit:cover;opacity:.86}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,18,16,.55) 0%,rgba(11,18,16,.15) 45%,rgba(11,18,16,.85) 100%);
}
.tcode{
  position:absolute;top:14px;left:16px;z-index:2;font-size:12px;letter-spacing:.16em;
  color:var(--mint);font-variant-numeric:tabular-nums;
}
.tcode i{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--red);margin-right:6px;vertical-align:1px}
.sigbars{position:absolute;left:16px;bottom:16px;z-index:2;display:flex;align-items:flex-end;gap:4px;height:26px}
.sigbars i{display:block;width:4px;background:var(--mint);border-radius:2px;opacity:.85}
.sigbars i:nth-child(1){height:8px}
.sigbars i:nth-child(2){height:13px}
.sigbars i:nth-child(3){height:18px}
.sigbars i:nth-child(4){height:22px}
.sigbars i:nth-child(5){height:26px;background:var(--amber)}
.hero-tagline{
  position:absolute;right:16px;bottom:16px;z-index:2;font-size:12px;color:var(--mut-d);
  border:1px solid var(--line-d);border-radius:999px;padding:4px 10px;background:rgba(11,18,16,.6);
}

/* feature list */
.feat{display:flex;flex-direction:column;gap:0;margin-top:8px}
.feat-item{
  display:grid;grid-template-columns:88px 1fr 120px;gap:28px;align-items:start;
  padding:30px 0;border-top:1px solid var(--line-l);transition:background .18s;
}
.feat-item:last-child{border-bottom:1px solid var(--line-l)}
.feat-no{font-size:38px;font-weight:800;line-height:1;color:var(--line-l);font-variant-numeric:tabular-nums}
.feat-item h3{font-size:20px;font-weight:700;margin-bottom:8px}
.feat-item p{font-size:15px;color:var(--mut-l);max-width:620px}
.feat-mark{justify-self:end;display:flex;align-items:flex-end;gap:3px;height:28px;opacity:.7}
.feat-mark i{display:block;width:3px;background:var(--mint-d);border-radius:2px}
.feat-mark i:nth-child(1){height:10px}
.feat-mark i:nth-child(2){height:16px}
.feat-mark i:nth-child(3){height:12px}
.feat-mark i:nth-child(4){height:22px}
.feat-mark i:nth-child(5){height:28px;background:var(--amber)}

/* posters */
.grid-posters{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.poster{
  background:var(--panel);border:1px solid var(--line-d);border-radius:14px;overflow:hidden;
  transition:transform .18s,border-color .18s,box-shadow .18s;box-shadow:var(--shadow-d);
}
.poster:hover{transform:translateY(-2px);border-color:var(--mint);box-shadow:0 16px 36px rgba(0,0,0,.3)}
.poster .thumb{position:relative;aspect-ratio:2/3;overflow:hidden;background:#101a16}
.poster .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.poster:hover .thumb img{transform:scale(1.05)}
.badge{
  position:absolute;left:8px;top:8px;font-size:11px;line-height:1;padding:5px 8px;border-radius:6px;
  font-weight:600;
}
.badge-hd{border:1px solid var(--mint);color:var(--mint);background:rgba(11,18,16,.7)}
.badge-bd{background:var(--amber);color:#231705}
.badge-up{background:#0B1210;color:#fff;border:1px solid #3A4A42}
.rate{
  position:absolute;right:8px;bottom:8px;font-size:12px;font-weight:700;color:var(--amber);
  background:rgba(11,18,16,.82);border-radius:6px;padding:3px 7px;font-variant-numeric:tabular-nums;
}
.rate::before{content:"◆";font-size:9px;margin-right:4px;vertical-align:1px}
.poster .meta{padding:10px 12px 12px}
.poster .meta strong{display:block;font-size:14px;font-weight:600;color:var(--txt-d);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* hot list */
.grid-hot{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.hot-card{
  display:grid;grid-template-columns:45% 1fr;background:var(--card-l);border:1px solid var(--line-l);
  border-radius:14px;overflow:hidden;box-shadow:var(--shadow-l);transition:transform .18s,border-color .18s,box-shadow .18s;
}
.hot-card:hover{transform:translateY(-2px);border-color:var(--mint-d);box-shadow:0 14px 30px rgba(18,24,19,.1)}
.hot-card .pic{aspect-ratio:16/9;overflow:hidden;background:var(--paper-2)}
.hot-card .pic img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.hot-card:hover .pic img{transform:scale(1.04)}
.hot-body{padding:14px 16px;display:flex;flex-direction:column;gap:8px;justify-content:center}
.hot-body h3{font-size:16px;font-weight:700}
.hot-bar{height:4px;border-radius:2px;background:var(--line-l);overflow:hidden}
.hot-bar i{display:block;height:100%;background:var(--mint-d);border-radius:2px}
.hot-foot{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--mut-l)}
.hot-foot .sc{color:var(--amber);font-weight:700;font-variant-numeric:tabular-nums}
.tag{font-size:11px;padding:2px 8px;border-radius:6px;background:var(--paper-2);color:var(--mut-l);border:1px solid var(--line-l)}

/* channels */
.grid-ch{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.ch{
  display:grid;grid-template-columns:52px 1fr 24px;gap:14px;align-items:center;
  padding:22px 20px;border:1px solid var(--line-l);border-radius:14px;background:var(--paper);
  transition:background .18s,color .18s,border-color .18s;
}
.ch-no{font-size:24px;font-weight:800;color:var(--mut-l);font-variant-numeric:tabular-nums;transition:color .18s}
.ch h3{font-size:17px;font-weight:700;margin-bottom:4px}
.ch p{font-size:13px;color:var(--mut-l);line-height:1.6;transition:color .18s}
.ch .arw{font-size:16px;color:var(--mut-l);justify-self:end;transition:color .18s,transform .18s}
.ch:hover{background:var(--ink);border-color:var(--ink)}
.ch:hover h3{color:var(--txt-d)}
.ch:hover p{color:var(--mut-d)}
.ch:hover .ch-no{color:var(--mint)}
.ch:hover .arw{color:var(--mint);transform:translateX(3px)}

/* rank */
.grid-rank{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 40px}
.rank-row{
  display:grid;grid-template-columns:48px 1fr auto 96px 48px;gap:12px;align-items:center;
  height:60px;padding:0 12px;border-radius:10px;transition:background .18s;
}
.rank-row:hover{background:#101a16}
.rank-row:hover .rank-title{color:var(--mint)}
.rank-no{font-size:20px;font-weight:800;color:var(--mut-d);font-variant-numeric:tabular-nums}
.rank-row:nth-child(-n+3) .rank-no{color:var(--amber)}
.rank-title{font-size:15px;color:var(--txt-d);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-tag{font-size:11px;color:var(--mut-d);border:1px solid var(--line-d);border-radius:6px;padding:2px 7px;white-space:nowrap}
.rank-bar{height:4px;background:#22302A;border-radius:2px;overflow:hidden}
.rank-bar i{display:block;height:100%;background:var(--mint);border-radius:2px}
.rank-score{font-size:13px;font-weight:700;color:var(--amber);text-align:right;font-variant-numeric:tabular-nums}

/* scenes */
.scenes{display:flex;flex-direction:column;gap:64px;margin-top:16px}
.scene{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center}
.scene.alt{grid-template-columns:7fr 5fr}
.scene.alt .scene-media{order:2}
.scene-media{aspect-ratio:4/3;border-radius:14px;overflow:hidden;border:1px solid var(--line-l);box-shadow:var(--shadow-l)}
.scene-media img{width:100%;height:100%;object-fit:cover}
.scene-no{font-size:13px;font-weight:700;color:var(--mint-d);letter-spacing:.1em}
.scene h3{font-size:22px;font-weight:700;margin:10px 0 12px}
.scene p{font-size:15px;color:var(--mut-l);max-width:520px}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}

/* phones */
.demo-panel{
  margin-top:36px;background:var(--ink);border-radius:18px;padding:44px 32px;border:1px solid var(--line-d);
  position:relative;overflow:hidden;
}
.demo-panel::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(0deg,rgba(243,247,244,.04) 0 1px,transparent 1px 4px);
}
.phones{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;position:relative;z-index:1;max-width:760px;margin:0 auto}
.phone-col{text-align:center}
.phone{
  width:100%;aspect-ratio:9/19.5;border-radius:22px;overflow:hidden;border:1px solid #2A382F;
  background:#0f1a16;position:relative;box-shadow:0 14px 34px rgba(0,0,0,.32);
}
.phone img{width:100%;height:100%;object-fit:cover;opacity:.82}
.phone::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,18,16,.5),rgba(11,18,16,.05) 40%,rgba(11,18,16,.7))}
.phone-cap{margin-top:14px;font-size:13px;color:var(--mut-d);line-height:1.6}

/* steps */
.steps-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:start}
.step{position:relative;padding:0 0 34px 46px;border-left:1px solid var(--line-l);margin-left:14px}
.step:last-child{border-left-color:transparent;padding-bottom:0}
.step-no{
  position:absolute;left:-15px;top:0;width:30px;height:30px;border-radius:50%;background:var(--mint);
  color:#06231C;font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center;
}
.step h3{font-size:18px;font-weight:700;margin-bottom:8px}
.step p{font-size:15px;color:var(--mut-l);max-width:520px}
.dev-box{background:var(--card-l);border:1px solid var(--line-l);border-radius:14px;padding:26px;box-shadow:var(--shadow-l)}
.dev-box h3{font-size:17px;font-weight:700;margin-bottom:16px}
.dev-list{list-style:none;display:flex;flex-direction:column;gap:12px}
.dev-list li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--txt-l)}
.dev-list li::before{
  content:"✓";width:20px;height:20px;border-radius:50%;background:rgba(45,226,182,.16);color:var(--mint-d);
  font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.dev-list li span{color:var(--mut-l);font-size:12px;margin-left:auto}
.steps-cta{margin-top:40px}

/* cases */
.cases{margin-top:8px;border-top:1px solid var(--line-l)}
.case-row{
  display:grid;grid-template-columns:160px 1fr auto;gap:28px;align-items:center;
  padding:24px 12px;border-bottom:1px solid var(--line-l);transition:background .18s;border-radius:8px;
}
.case-row:hover{background:rgba(45,226,182,.06)}
.case-label{font-size:13px;font-weight:700;color:var(--mint-d);letter-spacing:.04em}
.case-row p{font-size:15px;color:var(--mut-l)}
.case-state{font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;background:rgba(45,226,182,.16);color:#0d6b53;white-space:nowrap}

/* plans */
.grid-plan{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px;align-items:stretch}
.plan{
  background:var(--card-l);border:1px solid var(--line-l);border-radius:14px;padding:28px 24px;
  display:flex;flex-direction:column;box-shadow:var(--shadow-l);transition:transform .18s,box-shadow .18s;
}
.plan:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(18,24,19,.1)}
.plan.featured{border:2px solid var(--mint-d);position:relative}
.plan-flag{
  position:absolute;top:-12px;left:24px;background:var(--mint-d);color:#06231C;font-size:11px;
  font-weight:800;padding:3px 10px;border-radius:999px;
}
.plan h3{font-size:19px;font-weight:700}
.plan .price{font-size:30px;font-weight:800;margin:14px 0 4px;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.plan .price small{font-size:13px;font-weight:500;color:var(--mut-l);margin-left:6px}
.plan .note{font-size:12px;color:var(--mut-l);margin-bottom:18px}
.plan ul{list-style:none;display:flex;flex-direction:column;gap:11px;margin-bottom:24px;flex:1}
.plan ul li{font-size:14px;color:var(--mut-l);display:flex;gap:9px;align-items:flex-start}
.plan ul li::before{content:"·";color:var(--mint-d);font-weight:800;font-size:20px;line-height:1}
.plan .btn{width:100%}

/* reviews */
.grid-review{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:8px}
.review{
  background:var(--card-l);border:1px solid var(--line-l);border-radius:14px;padding:22px;
  box-shadow:var(--shadow-l);transition:transform .18s;display:flex;flex-direction:column;gap:12px;
}
.review:hover{transform:translateY(-2px)}
.review .quote{font-size:34px;line-height:1;color:var(--line-l);font-weight:800}
.review p{font-size:14px;color:var(--txt-l);line-height:1.75}
.review .rfoot{display:flex;align-items:center;justify-content:space-between;margin-top:auto}
.review .dev{font-size:12px;color:var(--mut-l);border:1px solid var(--line-l);padding:2px 8px;border-radius:6px}
.stars{color:var(--amber);font-size:12px;letter-spacing:1px}

/* praise */
.praise{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center}
.praise h2{font-size:32px;font-weight:700;line-height:1.3}
.praise .sub{margin-top:12px;font-size:15px;color:var(--mut-l);max-width:340px}
.praise-tags{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.praise-tags span{
  border:1px solid var(--line-l);border-radius:999px;padding:6px 14px;background:var(--card-l);color:var(--txt-l);
}
.praise-tags span:nth-child(1){font-size:18px;font-weight:700}
.praise-tags span:nth-child(2){font-size:13px}
.praise-tags span:nth-child(3){font-size:16px}
.praise-tags span:nth-child(4){font-size:12px}
.praise-tags span:nth-child(5){font-size:17px;font-weight:700}
.praise-tags span:nth-child(6){font-size:13px}
.praise-tags span:nth-child(7){font-size:15px}
.praise-tags span:nth-child(8){font-size:12px}

/* news */
.grid-news{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:8px}
.news-card{
  display:grid;grid-template-columns:38% 1fr;gap:0;background:var(--card-l);border:1px solid var(--line-l);
  border-radius:14px;overflow:hidden;box-shadow:var(--shadow-l);transition:transform .18s,border-color .18s;
}
.news-card:hover{transform:translateY(-2px);border-color:var(--mint-d)}
.news-card .pic{aspect-ratio:16/9;overflow:hidden;background:var(--paper-2)}
.news-card .pic img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.news-card:hover .pic img{transform:scale(1.05)}
.news-body{padding:14px 16px;display:flex;flex-direction:column;gap:8px;justify-content:center}
.news-body h3{font-size:15px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover h3{text-decoration:underline;text-decoration-color:var(--mint-d);text-underline-offset:3px}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--mut-l)}

/* faq */
.faq-wrap{max-width:800px;margin-top:8px}
.faq-item{border-top:1px solid var(--line-l)}
.faq-item:last-child{border-bottom:1px solid var(--line-l)}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:16px;font-weight:600;cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none}
.pm{width:22px;height:22px;position:relative;flex:0 0 auto}
.pm::before,.pm::after{content:"";position:absolute;background:var(--mint-d);transition:transform .2s}
.pm::before{left:2px;right:2px;top:10px;height:2px}
.pm::after{top:2px;bottom:2px;left:10px;width:2px}
.faq-item[open] .pm::after{transform:scaleY(0)}
.faq-item p{padding:0 0 22px;font-size:15px;color:var(--mut-l);line-height:1.8;max-width:720px}

/* final cta */
.cta-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.cta-grid h2{font-size:36px;line-height:1.25;font-weight:800}
.cta-grid .cta-desc{margin-top:16px;font-size:15px;color:var(--mut-d);max-width:480px}
.cta-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.cta-form{background:var(--panel);border:1px solid var(--line-d);border-radius:16px;padding:26px}
.cta-form label{display:block;font-size:13px;color:var(--mut-d);margin-bottom:8px}
.cta-form select{
  width:100%;height:48px;border-radius:10px;background:#0F1A16;border:1px solid var(--line-d);
  color:var(--txt-d);padding:0 14px;appearance:none;transition:border-color .18s,box-shadow .18s;
}
.cta-form select:focus{outline:none;border-color:var(--mint);box-shadow:0 0 0 2px rgba(45,226,182,.35)}
.cta-form .btn{width:100%;margin-top:16px}
.cta-mini{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.cta-mini span{font-size:12px;color:var(--mut-d);border:1px solid var(--line-d);border-radius:999px;padding:4px 10px}

/* footer */
.site-footer{background:var(--ink);color:var(--mut-d);padding:64px 0 0;border-top:1px solid var(--line-d)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13px;line-height:1.8;max-width:280px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--txt-d);margin-bottom:16px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13px;color:var(--mut-d);transition:color .18s}
.footer-col a:hover{color:var(--mint)}
.copyright{
  border-top:1px solid var(--line-d);padding:20px 0;font-size:12px;color:#6F8479;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
}

@media (max-width:1024px){
  .container{padding:0 24px}
  .sec{padding:72px 0}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:46px}
  .h2{font-size:30px}
  .nav{gap:18px}
  .bg-posters{grid-template-columns:repeat(4,1fr)}
  .grid-posters{grid-template-columns:repeat(4,1fr)}
  .grid-ch{grid-template-columns:repeat(2,1fr)}
  .grid-review{grid-template-columns:repeat(2,1fr)}
  .feat-item{grid-template-columns:60px 1fr;gap:20px}
  .feat-mark{display:none}
  .steps-grid{grid-template-columns:1fr;gap:36px}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .praise{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-grid h2{font-size:32px}
}

@media (max-width:768px){
  .nav{
    position:fixed;top:72px;left:0;right:0;display:none;flex-direction:column;align-items:stretch;
    gap:0;background:var(--ink);border-bottom:1px solid var(--line-d);padding:8px 24px 20px;
    box-shadow:0 20px 40px rgba(0,0,0,.4);margin-left:0;
  }
  .nav.open{display:flex}
  .nav a.nav-link{padding:14px 0;border-bottom:1px solid #1B2620;font-size:15px}
  .nav a.nav-link::after{display:none}
  .nav .nav-cta-m{display:inline-flex;margin-top:16px}
  .header-cta{display:none}
  .burger{display:flex}
  .site-header.compact .nav{top:60px}
  .hero h1{font-size:38px}
  .h2{font-size:27px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .grid-posters{grid-template-columns:repeat(3,1fr)}
  .grid-hot{grid-template-columns:1fr}
  .grid-rank{grid-template-columns:1fr;gap:4px}
  .grid-news{grid-template-columns:1fr}
  .grid-plan{grid-template-columns:1fr}
  .scene,.scene.alt{grid-template-columns:1fr;gap:24px}
  .scene.alt .scene-media{order:0}
  .phones{grid-template-columns:1fr;max-width:260px;gap:28px}
  .demo-panel{padding:32px 20px}
  .case-row{grid-template-columns:1fr;gap:10px;align-items:flex-start}
  .case-state{justify-self:start}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-grid h2{font-size:28px}
}

@media (max-width:520px){
  .container{padding:0 16px}
  .sec{padding:56px 0}
  .hero{padding:40px 0 48px}
  .hero h1{font-size:34px}
  .h2{font-size:26px}
  .grid-posters{grid-template-columns:repeat(2,1fr);gap:12px}
  .grid-ch{grid-template-columns:1fr}
  .grid-review{grid-template-columns:1fr}
  .rank-row{grid-template-columns:36px 1fr auto 44px;height:56px;padding:0 6px;gap:8px}
  .rank-bar{display:none}
  .hot-card{grid-template-columns:1fr}
  .hot-card .pic{aspect-ratio:16/9}
  .news-card{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .feat-item{grid-template-columns:1fr;gap:10px}
  .feat-no{font-size:30px}
  .btn{height:46px}
  .hero-btns .btn{flex:1 1 auto}
}