/* ИЧУАН ТЕКСТИЛЬ — прототип русской версии сайта
   Цвета: бренд-палитра 一创 (经纬蓝 / 纺锤金 / 再生青) */
:root{
  --yc-primary:#1A6FD1;
  --yc-primary-dark:#1559A8;
  --yc-primary-light:#4DA3FF;
  --yc-secondary:#0D9488;
  --yc-accent:#C47800;
  --yc-accent-light:#E69900;
  --yc-bg:#FAF9F6;
  --yc-bg-alt:#F4F7FB;
  --yc-text:#1A1A1A;
  --yc-text-2:#484F58;
  --yc-muted:#8B949E;
  --yc-border:#E3E8EF;
  --yc-white:#FFFFFF;
  --radius:10px;
  --maxw:1160px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--yc-bg);color:var(--yc-text);
  font-family:"PT Sans","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.55;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--yc-primary);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 16px}
h1,h2,h3{line-height:1.25;margin:0 0 12px}
h1{font-size:30px}
h2{font-size:24px}
h3{font-size:18px}
p{margin:0 0 12px}
small{color:var(--yc-muted)}

/* ---------- header ---------- */
.topbar{background:#0D1117;color:#E6EDF3;font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;gap:12px;padding:6px 16px;flex-wrap:wrap}
.topbar a{color:#E6EDF3}
header.site{background:var(--yc-white);border-bottom:1px solid var(--yc-border);position:sticky;top:0;z-index:20}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 16px}
.brand{display:flex;align-items:center;gap:10px}
.brand .mark{
  width:40px;height:40px;border-radius:8px;flex:0 0 40px;
  background:linear-gradient(135deg,var(--yc-primary),var(--yc-secondary));
  color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:18px
}
.brand b{display:block;font-size:17px;letter-spacing:.5px}
.brand span{display:block;font-size:11px;color:var(--yc-muted)}
nav.main{display:flex;gap:18px;flex-wrap:wrap;font-size:15px}
nav.main a{color:var(--yc-text-2)}
nav.main a.active{color:var(--yc-primary);font-weight:700}
.lang{display:flex;gap:8px;font-size:13px}
.lang a{padding:2px 8px;border:1px solid var(--yc-border);border-radius:20px;color:var(--yc-text-2)}
.lang a.on{background:var(--yc-primary);border-color:var(--yc-primary);color:#fff}

/* ---------- buttons ---------- */
.btn{display:inline-block;padding:12px 20px;border-radius:8px;font-weight:700;font-size:15px;border:0;cursor:pointer}
.btn-primary{background:var(--yc-accent);color:#fff}
.btn-primary:hover{background:var(--yc-accent-light);text-decoration:none}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6)}
.btn-ghost:hover{background:rgba(255,255,255,.12);text-decoration:none}
.btn-line{background:#fff;color:var(--yc-primary);border:1px solid var(--yc-primary)}

/* ---------- hero ---------- */
.hero{background:linear-gradient(135deg,#0D1117 0%,#123A63 55%,#1559A8 100%);color:#E6EDF3;padding:44px 0 40px}
.hero h1{color:#fff;font-size:32px;max-width:820px}
.hero p.lead{font-size:17px;color:#C9D6E2;max-width:760px}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap;margin:20px 0 22px}
.badges{display:flex;gap:10px;flex-wrap:wrap;list-style:none;padding:0;margin:0}
.badges li{
  font-size:13px;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);
  border-radius:20px;padding:6px 12px;color:#E6EDF3
}
.trust{background:var(--yc-bg-alt);border-bottom:1px solid var(--yc-border);font-size:13px;color:var(--yc-text-2)}
.trust .wrap{display:flex;gap:18px;flex-wrap:wrap;padding:10px 16px}
.trust b{color:var(--yc-text)}

/* ---------- sections ---------- */
section{padding:38px 0}
section.alt{background:var(--yc-white);border-top:1px solid var(--yc-border);border-bottom:1px solid var(--yc-border)}
.sec-head{margin-bottom:20px}
.sec-head p{color:var(--yc-text-2);max-width:760px}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--yc-white);border:1px solid var(--yc-border);border-radius:var(--radius);padding:18px}
.card h3{margin-bottom:8px}
.card p{color:var(--yc-text-2);font-size:15px;margin:0}
.card .tag{display:inline-block;font-size:12px;font-weight:700;color:var(--yc-secondary);margin-bottom:6px;letter-spacing:.4px}
.eco .tag{color:var(--yc-secondary)}
.card.eco{border-color:#BFE7E3;background:#F2FBF9}

/* ---------- tables ---------- */
table{width:100%;border-collapse:collapse;background:#fff;font-size:15px}
caption{text-align:left;font-size:13px;color:var(--yc-muted);padding-bottom:8px}
th,td{border:1px solid var(--yc-border);padding:9px 10px;text-align:left;vertical-align:top}
th{background:var(--yc-bg-alt);font-size:14px}
tbody tr:nth-child(even){background:#FCFDFE}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* ---------- lists ---------- */
ul.clean{list-style:none;padding:0;margin:0}
ul.clean li{padding-left:22px;position:relative;margin-bottom:8px;color:var(--yc-text-2)}
ul.clean li:before{content:"";position:absolute;left:0;top:8px;width:8px;height:8px;border-radius:2px;background:var(--yc-primary)}
ul.clean.ok li:before{background:var(--yc-secondary)}

/* ---------- form ---------- */
form.inq{background:#fff;border:1px solid var(--yc-border);border-radius:var(--radius);padding:18px}
form.inq .row{display:grid;gap:12px;grid-template-columns:repeat(2,1fr)}
form.inq label{display:block;font-size:14px;font-weight:700;margin-bottom:4px}
form.inq .field{margin-bottom:12px}
form.inq input,form.inq select,form.inq textarea{
  width:100%;padding:10px;border:1px solid #C9D2DE;border-radius:8px;font:inherit;background:#fff;color:var(--yc-text)
}
form.inq .consent{display:flex;gap:8px;align-items:flex-start;font-size:13px;color:var(--yc-text-2);margin:6px 0 14px}
form.inq .consent input{width:auto;margin-top:3px}
.form-note{font-size:13px;color:var(--yc-muted);margin-top:10px}
.form-ok{display:none;background:#F2FBF9;border:1px solid #BFE7E3;border-radius:8px;padding:12px;margin-top:12px;color:#0F766E}

/* ---------- footer ---------- */
footer.site{background:#0D1117;color:#C9D6E2;padding:28px 0 18px;font-size:14px;margin-top:10px}
footer.site h4{color:#fff;font-size:15px;margin:0 0 10px}
footer.site .grid{gap:24px}
footer.site a{color:#9FC4EE}
.foot-bottom{border-top:1px solid #21262D;margin-top:20px;padding-top:12px;font-size:12px;color:var(--yc-muted)}

/* ---------- misc ---------- */
.note{background:#FFF8EC;border:1px solid #F0DCB4;border-radius:8px;padding:12px;font-size:14px;color:#7A5200}
.kpi{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:0;padding:0;list-style:none}
.kpi li{background:#fff;border:1px solid var(--yc-border);border-radius:var(--radius);padding:14px}
.kpi b{display:block;font-size:22px;color:var(--yc-primary)}
.kpi span{font-size:13px;color:var(--yc-text-2)}
.steps{counter-reset:s;list-style:none;padding:0;margin:0}
.steps li{counter-increment:s;position:relative;padding-left:38px;margin-bottom:14px}
.steps li:before{
  content:counter(s);position:absolute;left:0;top:0;width:26px;height:26px;border-radius:50%;
  background:var(--yc-primary);color:#fff;font-weight:700;font-size:14px;display:flex;align-items:center;justify-content:center
}
.steps b{display:block}
.steps span{color:var(--yc-text-2);font-size:15px}
.swatch{display:flex;gap:10px;flex-wrap:wrap;list-style:none;padding:0;margin:0}
.swatch li{font-size:13px;color:var(--yc-text-2)}
.swatch i{display:block;width:64px;height:34px;border-radius:6px;border:1px solid var(--yc-border);margin-bottom:4px}
.cta-band{background:var(--yc-bg-alt);border:1px solid var(--yc-border);border-radius:var(--radius);padding:20px;display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap}

/* ---------- 手机适配（2026-10-15）：导航可滑动、按钮满宽、主视觉更清晰 ---------- */
@media (max-width:900px){
  .g3,.g4,.kpi,form.inq .row{grid-template-columns:1fr 1fr}
  header.site .wrap{flex-wrap:wrap;gap:10px;padding:8px 16px}
  /* 原来这里是把导航整条 display:none —— 手机上等于没有菜单，改成可横向滑动的导航条 */
  nav.main{
    display:flex;order:3;width:100%;flex-wrap:nowrap;gap:0;
    overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;
    border-top:1px solid var(--yc-border);margin-top:6px;padding:0
  }
  nav.main::-webkit-scrollbar{height:0;display:none}
  nav.main a{flex:0 0 auto;padding:12px 14px;white-space:nowrap;font-size:15px}
  nav.main a.active{box-shadow:inset 0 -3px 0 var(--yc-primary)}
  .lang{margin-left:auto}
  .lang a{padding:6px 10px}
  .shots{grid-template-columns:1fr}
}
@media (max-width:600px){
  h1{font-size:24px}
  .hero h1{font-size:23px}
  .g2,.g3,.g4,.kpi,form.inq .row{grid-template-columns:1fr}
  section{padding:26px 0}
  .topbar{font-size:12.5px}
  .topbar .wrap{padding:5px 12px;gap:4px}
  .brand b{font-size:15px}
  .brand .mark{width:34px;height:34px;flex:0 0 34px}
  .hero{padding:26px 0 24px}
  .hero.hero-shot{background-position:center right}
  .hero.hero-shot::after{background:linear-gradient(180deg,rgba(5,18,34,.93) 0%,rgba(5,18,34,.78) 60%,rgba(5,18,34,.58) 100%)}
  .hero .cta{flex-direction:column;gap:10px;margin:16px 0 18px}
  .hero .cta .btn{width:100%;text-align:center;padding:14px 16px}
  .badges li{font-size:12.5px;padding:5px 10px}
  .shots figcaption{font-size:13px}
  .btn{padding:12px 16px}
  p,li,td,th{overflow-wrap:break-word}
}

/* ---------- 实拍图 / 主视觉（2026-10-15 新增） ---------- */
.hero.hero-shot{background-image:url(img/hero-bg.jpg?v=e40ef1fe);background-size:cover;background-position:center right;background-repeat:no-repeat;position:relative}
.hero.hero-shot::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,18,34,.94) 0%,rgba(5,18,34,.80) 45%,rgba(5,18,34,.30) 100%);pointer-events:none}
.hero.hero-shot .wrap{position:relative;z-index:2}
.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.shots figure{margin:0;background:var(--yc-white);border:1px solid var(--yc-border);border-radius:10px;overflow:hidden}
.shots img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
.shots figcaption{font-size:13.5px;line-height:1.6;color:var(--yc-text-2);padding:10px 12px}
.note{font-size:13px;color:var(--yc-text-2);margin-top:14px}
@media (max-width:900px){.shots{grid-template-columns:1fr}}

/* ---------- RTL（阿拉伯语站） ---------- */
[dir="rtl"] body{text-align:right}
[dir="rtl"] nav.main,[dir="rtl"] .lang,[dir="rtl"] .langmenu,[dir="rtl"] .cta,[dir="rtl"] .badges,[dir="rtl"] .brand{flex-direction:row-reverse}
[dir="rtl"] .topbar .wrap{direction:rtl}
[dir="rtl"] th,[dir="rtl"] td,[dir="rtl"] .shots figcaption,[dir="rtl"] .note{text-align:right}
[dir="rtl"] ul{padding-right:20px;padding-left:0}
[dir="rtl"] .steps li{padding-right:36px;padding-left:0}
[dir="rtl"] .steps li:before{left:auto;right:0}
[dir="rtl"] .table-scroll{direction:rtl}
@media (max-width:600px){[dir="rtl"] .hero .cta .btn{text-align:center}}

/* ── 语言切换：折叠下拉（不再把 7 种语言平铺在顶栏）── */
.langmenu{position:relative;font-size:13px}
.langmenu summary{list-style:none;cursor:pointer;display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border:1px solid var(--yc-border);border-radius:20px;color:var(--yc-text-2);white-space:nowrap}
.langmenu summary::-webkit-details-marker{display:none}
.langmenu summary::after{content:"▾";font-size:10px;opacity:.75}
.langmenu summary:hover,.langmenu[open] summary{border-color:var(--yc-primary);color:var(--yc-primary)}
.langmenu ul{position:absolute;inset-inline-end:0;top:calc(100% + 8px);z-index:60;margin:0;padding:6px;list-style:none;
  min-width:196px;background:#fff;border:1px solid var(--yc-border);border-radius:12px;
  box-shadow:0 10px 30px rgba(16,32,60,.16)}
.langmenu li a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 12px;
  border-radius:8px;color:var(--yc-text);text-decoration:none}
.langmenu li a:hover{background:#f2f6ff;color:var(--yc-primary)}
.langmenu li.on a{background:var(--yc-primary);color:#fff;font-weight:600}
/* 折叠面板开合只由 <details> 决定：关着一定不显示，开着一定显示（不依赖浏览器默认实现） */
.langmenu details:not([open]) > ul{display:none !important}
.langmenu details[open] > ul{display:block !important}
.langmenu .lcode{font-size:11px;opacity:.65}
[dir="rtl"] .langmenu ul{text-align:right}
@media (max-width:900px){
  .langmenu summary{padding:5px 10px}
  .langmenu ul{min-width:180px;font-size:14px}
  .langmenu li a{padding:10px 12px}
}