/* newsiyuantube.com — base stylesheet */

:root{
  --ink:#111820;
  --ink2:#3b4854;
  --ink3:#6d7a87;
  --line:#e3e7eb;
  --line2:#cfd6dd;
  --bg:#ffffff;
  --bg2:#f6f7f8;
  --dark:#0d1a24;
  --dark2:#16262f;
  --accent:#c2410c;
  --accent-d:#9a3412;
  --ok:#0f766e;
  --maxw:1180px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;overflow-x:hidden}
body{
  margin:0;
  overflow-x:hidden;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.mono,.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- top strip ---------- */
.strip{background:var(--dark);color:#c8d3dc;font-size:12.5px;letter-spacing:.02em}
.strip .wrap{display:flex;justify-content:space-between;align-items:center;height:36px;gap:16px}
.strip a{color:#e8eef3}
.strip a:hover{color:#fff}
.strip .r{display:flex;gap:18px;align-items:center;white-space:nowrap}
.strip .r span{color:#7f8f9c}

/* ---------- header ---------- */
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:saturate(180%) blur(8px)}
header.site .wrap{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;flex-direction:column;line-height:1.15;flex:none}
.brand b{font-size:18px;letter-spacing:.06em;font-weight:700}
.brand i{font-style:normal;font-size:11px;color:var(--ink3);letter-spacing:.08em;text-transform:uppercase}
nav.main{display:flex;gap:26px;font-size:14.5px;margin-left:auto;overflow-x:auto;scrollbar-width:none;min-width:0}
nav.main::-webkit-scrollbar{display:none}
nav.main a{color:var(--ink2);padding:6px 0;border-bottom:2px solid transparent;white-space:nowrap}
nav.main a:hover{color:var(--ink);border-bottom-color:var(--line2)}
nav.main a.on{color:var(--ink);border-bottom-color:var(--accent);font-weight:600}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:3px;font-size:14.5px;font-weight:600;border:1px solid transparent;transition:background .15s,border-color .15s}
.btn-a{background:var(--accent);color:#fff}
.btn-a:hover{background:var(--accent-d)}
.btn-o{border-color:var(--line2);color:var(--ink)}
.btn-o:hover{border-color:var(--ink)}
.btn-w{background:#fff;color:var(--ink)}
.btn-ghost{border-color:rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{border-color:#fff}
header.site .btn{flex:none}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--dark);color:#fff;overflow:hidden}
.hero img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.95;filter:saturate(.8) brightness(.85)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(8,17,24,.95) 0%,rgba(8,17,24,.9) 40%,rgba(8,17,24,.62) 70%,rgba(8,17,24,.42) 100%)}
.hero .wrap{position:relative;z-index:1;padding-top:70px;padding-bottom:58px}
.hero .eyebrow{font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:#f0a882;margin:0 0 18px}
.hero h1{font-size:clamp(26px,3.4vw,41px);line-height:1.18;letter-spacing:-.015em;margin:0 0 18px;max-width:22em;font-weight:700}
br.d{display:inline}
@media (max-width:860px){br.d{display:none}}
.hero p.lede{font-size:16.5px;line-height:1.64;color:#dde6ed;max-width:42em;margin:0 0 28px}
.hero .acts{display:flex;gap:12px;flex-wrap:wrap}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.14);margin-top:56px}
.stats div{background:rgba(13,26,36,.55);padding:18px 20px}
.stats b{display:block;font-size:22px;letter-spacing:-.01em;font-variant-numeric:tabular-nums}
.stats span{display:block;font-size:12px;color:#9fb0bd;margin-top:3px;letter-spacing:.04em}

/* ---------- generic page head ---------- */
.phead{background:var(--bg2);border-bottom:1px solid var(--line);padding:52px 0 44px}
.crumb{font-size:12.5px;color:var(--ink3);margin:0 0 14px;letter-spacing:.02em}
.crumb a:hover{color:var(--accent)}
.phead h1{font-size:clamp(27px,3.4vw,40px);line-height:1.2;margin:0 0 18px;letter-spacing:-.015em;max-width:24em}
.phead p.lede{font-size:17px;line-height:1.68;color:var(--ink2);max-width:52em;margin:0}

/* ---------- sections ---------- */
section{padding:66px 0}
section.tight{padding:46px 0}
section.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2{font-size:clamp(21px,2.4vw,28px);line-height:1.28;margin:0 0 8px;letter-spacing:-.01em}
h2 .sub{display:block;font-size:14px;font-weight:400;color:var(--ink3);margin-top:8px;letter-spacing:0;line-height:1.6}
h3{font-size:17px;margin:26px 0 6px}
p{margin:0 0 16px;max-width:60em}
.sec-lede{color:var(--ink2);font-size:16.5px;max-width:52em;margin-bottom:28px}
ul.plain{margin:0 0 16px;padding-left:20px;color:var(--ink2)}
ul.plain li{margin-bottom:7px}
a.inl{color:var(--accent);border-bottom:1px solid rgba(194,65,12,.3)}
a.inl:hover{border-bottom-color:var(--accent)}

/* ---------- spec table ---------- */
table.spec{width:100%;border-collapse:collapse;font-size:15px;margin:6px 0 14px;table-layout:fixed}
table.spec th,table.spec td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:top}
table.spec th{width:210px;font-weight:600;color:var(--ink3);font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;background:var(--bg2);border-bottom:1px solid var(--line)}
table.spec tr:first-child th,table.spec tr:first-child td{border-top:1px solid var(--line)}
table.spec td b{font-variant-numeric:tabular-nums}
table.spec td{word-break:break-word}
.note{font-size:13.5px;color:var(--ink3);border-left:2px solid var(--line2);padding-left:14px;margin:14px 0 0;max-width:44em}

/* ---------- cards / grid ---------- */
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
figure{margin:0}
figure img{width:100%;background:#eef0f2}
figcaption{font-size:13px;color:var(--ink3);line-height:1.5;margin-top:9px;padding-right:6px}
.card{border:1px solid var(--line);padding:24px 24px 22px;background:#fff}
.card h3{margin:0 0 8px;font-size:16.5px}
.card p{font-size:14.5px;color:var(--ink2);margin:0}
.card .k{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);display:block;margin-bottom:10px}
.card figure{margin:-24px -24px 20px}
.card figure img{aspect-ratio:4/3;object-fit:cover}
.card figure figcaption{margin:0;padding:8px 24px 0;font-size:12.5px}

/* ---------- limits block ---------- */
.limits{background:var(--dark);color:#dbe4ea;padding:44px 0}
.limits h2{color:#fff}
.limits h2 .sub{color:#8fa2b0}
.limits ol{margin:22px 0 0;padding-left:22px;columns:2;column-gap:52px;font-size:14.5px;line-height:1.6}
.limits li{margin-bottom:14px;break-inside:avoid;color:#c4d0d9}
.limits li b{color:#fff}

/* ---------- steps ---------- */
ol.steps{counter-reset:s;list-style:none;padding:0;margin:8px 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:0}
ol.steps li{counter-increment:s;background:#fff;padding:20px 26px 20px 0;font-size:14.5px;color:var(--ink2);border-top:1px solid var(--line)}
ol.steps li::before{content:counter(s,decimal-leading-zero);display:block;font-size:12px;color:var(--accent);letter-spacing:.1em;margin-bottom:8px;font-variant-numeric:tabular-nums}
ol.steps li b{display:block;color:var(--ink);font-size:15px;margin-bottom:4px}

/* ---------- faq ---------- */
details{border-bottom:1px solid var(--line);padding:16px 0}
details summary{cursor:pointer;font-weight:600;font-size:16px;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:flex-start}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";color:var(--ink3);font-weight:400;font-size:20px;line-height:1}
details[open] summary::after{content:"–"}
details .a{padding:12px 0 2px;color:var(--ink2);font-size:15px;max-width:56em}
details .a .lim{display:block;margin-top:10px;padding-left:14px;border-left:2px solid var(--accent);font-size:14px;color:var(--ink3)}

/* ---------- cta band ---------- */
.cta{background:var(--dark2);color:#fff;padding:56px 0}
.cta h2{color:#fff;margin-bottom:12px}
.cta p{color:#c2cfd8;max-width:44em}
.cta .acts{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}

/* ---------- contact ---------- */
.contact{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
form.cf{display:grid;gap:14px;max-width:520px}
form.cf label{font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink3);display:block;margin-bottom:5px}
form.cf input,form.cf textarea,form.cf select{
  width:100%;padding:11px 13px;border:1px solid var(--line2);border-radius:2px;font-size:15px;font-family:inherit;color:var(--ink);background:#fff}
form.cf input:focus,form.cf textarea:focus{outline:2px solid rgba(194,65,12,.25);border-color:var(--accent)}
form.cf textarea{min-height:104px;resize:vertical}
form.cf button{margin-top:6px;justify-self:start;cursor:pointer;font-family:inherit}
form.cf .hint{font-size:12.5px;color:var(--ink3);margin:0}
.wcard{border:1px solid var(--line);padding:26px}
.wcard dl{margin:0;font-size:14.5px}
.wcard dt{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink3);margin-top:16px}
.wcard dt:first-child{margin-top:0}
.wcard dd{margin:3px 0 0;font-weight:600}
.wcard dd a:hover{color:var(--accent)}

/* ---------- footer ---------- */
footer.site{background:var(--dark);color:#93a3af;font-size:12.5px;padding:44px 0 30px;line-height:1.75}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.1)}
footer.site b{color:#e6edf2;font-weight:600}
footer.site .en{color:#c3ced7}
footer.site a:hover{color:#fff}
footer.site .short{display:flex;gap:20px;flex-wrap:wrap;padding:18px 0 0}
footer.site .short a{color:#8ea0ad}
footer.site .copy{padding-top:14px;color:#6e7f8c}

/* ---------- floating whatsapp ---------- */
.fab{
  position:fixed;right:22px;bottom:22px;z-index:60;
  display:inline-flex;align-items:center;gap:9px;
  background:#1f8a4c;color:#fff;font-size:14px;font-weight:600;
  padding:12px 18px 12px 15px;border-radius:40px;
  box-shadow:0 6px 20px rgba(13,26,36,.24);
  transition:transform .15s,box-shadow .15s;
}
.fab:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(13,26,36,.3)}
.fab svg{flex:none}
@media (max-width:720px){
  .fab span{display:none}
  .fab{padding:13px;right:16px;bottom:16px}
}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  ol.steps{grid-template-columns:repeat(2,1fr)}
  .contact{grid-template-columns:1fr;gap:34px}
  nav.main{gap:18px;font-size:13.5px}
  header.site .btn{padding:9px 14px;font-size:13px}
}
@media (max-width:720px){
  .strip .l{display:none}
  .strip .r span{display:none}
  .wrap{padding:0 16px}
  .phead h1{font-size:23px;line-height:1.24}
  .hero h1{font-size:24px}
  .phead{padding:34px 0 30px}
  header.site .wrap{height:auto;padding-top:12px;padding-bottom:10px;flex-wrap:wrap;gap:10px}
  nav.main{order:3;width:100%;flex:1 0 100%;margin-left:0;gap:8px 18px;padding-bottom:6px;flex-wrap:wrap;overflow:visible}
  .strip{display:none}
  header.site .btn{margin-left:auto}
  .hero .wrap{padding-top:52px;padding-bottom:44px}
  .stats{grid-template-columns:repeat(2,1fr);margin-top:38px}
  .g2,.g3,.g4{grid-template-columns:1fr}
  ol.steps{grid-template-columns:1fr}
  .limits ol{columns:1}
  section{padding:44px 0}
  table.spec{table-layout:auto}
  table.spec th{display:block;width:auto;background:none;border:none;padding:12px 0 0;font-size:11px}
  table.spec td{display:block;border:none;border-bottom:1px solid var(--line);padding:3px 0 13px;font-size:14px}
  body{max-width:100vw}
  footer.site .cols{grid-template-columns:1fr;gap:22px}
}