/* SAYED — 工厂直供门业独立站 */
:root{
  --brand:#F07300;
  --brand-dark:#C25A00;
  --green:#0E4D3C;
  --ink:#14161A;
  --ink-2:#3A3F47;
  --muted:#6B7280;
  --line:#E7E9ED;
  --bg:#FFFFFF;
  --bg-alt:#F6F7F9;
  --bg-dark:#111317;
  --radius:14px;
  --maxw:1180px;
  --shadow:0 8px 30px rgba(16,18,22,.09);
  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;
}
img,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.18;margin:0 0 .5em;font-weight:700;letter-spacing:-.02em}
h1{font-size:clamp(2rem,5.2vw,3.5rem)}
h2{font-size:clamp(1.55rem,3.4vw,2.35rem)}
h3{font-size:clamp(1.1rem,2vw,1.35rem)}
p{margin:0 0 1em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section--tight{padding:48px 0}
.section--alt{background:var(--bg-alt)}
.section--dark{background:var(--bg-dark);color:#fff}
.section--dark p{color:#C3C7CE}
.eyebrow{
  display:inline-block;font-size:.76rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--brand);margin-bottom:12px;
}
.section--dark .eyebrow{color:#FFB25E}
.lead{font-size:1.06rem;color:var(--ink-2);max-width:62ch}
.muted{color:var(--muted)}
.center{text-align:center}
.center .lead{margin-inline:auto}

/* ---------- 顶栏 ---------- */
.nav{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line);
}
.nav__inner{display:flex;align-items:center;gap:18px;height:64px}
.logo{display:flex;align-items:baseline;gap:9px;font-weight:800;font-size:1.32rem;letter-spacing:.06em}
.logo b{color:var(--brand)}
.logo span{font-size:.62rem;font-weight:600;letter-spacing:.16em;color:var(--muted);text-transform:uppercase}
.nav__links{display:flex;gap:26px;margin-inline-start:auto;align-items:center}
.nav__links a{font-size:.93rem;font-weight:500;color:var(--ink-2)}
.nav__links a:hover{color:var(--brand)}
.nav__cta{margin-inline-start:14px}
.nav__toggle{display:none;margin-inline-start:auto;background:none;border:0;padding:8px;cursor:pointer}
.nav__toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.25s}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:999px;font-weight:650;font-size:.95rem;
  border:1.5px solid transparent;cursor:pointer;transition:.18s;white-space:nowrap;
}
.btn--primary{background:var(--brand);color:#fff}
.btn--primary:hover{background:var(--brand-dark)}
.btn--wa{background:#25D366;color:#fff}
.btn--wa:hover{background:#1da851}
.btn--ghost{border-color:var(--line);color:var(--ink);background:#fff}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn--light{background:#fff;color:var(--ink)}
.btn--sm{padding:9px 17px;font-size:.87rem}
.btn--block{width:100%}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:min(86vh,720px);display:flex;align-items:flex-end;overflow:hidden;background:#000}
.hero__media{position:absolute;inset:0}
.hero__media video,.hero__media img{width:100%;height:100%;object-fit:cover;opacity:.55}
.hero__scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,11,13,.55) 0%,rgba(10,11,13,.25) 38%,rgba(10,11,13,.92) 100%)}
.hero__inner{position:relative;width:100%;padding-top:130px;padding-bottom:54px;color:#fff}
.hero h1{color:#fff;max-width:17ch;text-shadow:0 2px 26px rgba(0,0,0,.35)}
.hero__sub{font-size:1.1rem;color:#E8EAED;max-width:52ch;margin-bottom:26px}
.hero .eyebrow{color:#FFB25E}
.hero__stats{display:flex;gap:34px;flex-wrap:wrap;margin-top:34px;padding-top:24px;border-top:1px solid rgba(255,255,255,.18)}
.hero__stat b{display:block;font-size:1.6rem;font-weight:800;line-height:1.1}
.hero__stat span{font-size:.8rem;color:#B9BDC4;letter-spacing:.04em}

/* ---------- 信任条 ---------- */
.trustbar{background:var(--ink);color:#fff;padding:16px 0}
.trustbar ul{display:flex;gap:30px;list-style:none;margin:0;padding:0;flex-wrap:wrap;justify-content:center;
  font-size:.85rem;letter-spacing:.02em;color:#D7DADF}
.trustbar li::before{content:"✓";color:var(--brand);font-weight:800;margin-inline-end:7px}

/* ---------- 网格 ---------- */
.grid{display:grid;gap:22px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}

/* ---------- 卡片 ---------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:.2s;display:flex;flex-direction:column;
}
.card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.card__img{aspect-ratio:4/3;overflow:hidden;background:var(--bg-alt)}
.card__img img{width:100%;height:100%;object-fit:cover}
.card__body{padding:20px 22px 24px;flex:1;display:flex;flex-direction:column}
.card__body h3{margin-bottom:6px}
.card__body p{font-size:.93rem;color:var(--muted);margin-bottom:14px}
.card__tag{
  display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--brand);margin-bottom:8px;
}
.card__link{margin-top:auto;font-weight:650;font-size:.9rem;color:var(--brand)}
.card__link::after{content:" →"}

/* 产品图卡（保持整幅画册图不裁切） */
.pcard__img{aspect-ratio:16/11;background:var(--bg-alt)}
.pcard__img img{object-fit:cover}

/* ---------- 双业务线 ---------- */
.line{position:relative;border-radius:var(--radius);overflow:hidden;color:#fff;min-height:330px;display:flex;align-items:flex-end}
.line img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.line__scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.05),rgba(0,0,0,.82))}
.line__body{position:relative;padding:26px}
.line__body h3{color:#fff;margin-bottom:6px}
.line__body p{color:#DADDE2;font-size:.93rem;margin-bottom:14px}

/* ---------- 特性列表 ---------- */
.features{list-style:none;padding:0;margin:0;display:grid;gap:16px}
.features li{display:flex;gap:13px;align-items:flex-start;font-size:.97rem}
.features .ic{
  flex:0 0 26px;height:26px;border-radius:7px;background:rgba(240,115,0,.12);color:var(--brand);
  display:grid;place-items:center;font-size:.8rem;font-weight:800;margin-top:2px;
}
.section--dark .ic{background:rgba(240,115,0,.2)}

/* ---------- 步骤 ---------- */
.steps{counter-reset:s;display:grid;gap:26px}
.step{display:flex;gap:18px}
.step__n{
  flex:0 0 42px;height:42px;border-radius:50%;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-weight:800;
}
.step h3{font-size:1.05rem;margin-bottom:3px}
.step p{font-size:.93rem;color:var(--muted);margin:0}

/* ---------- 规格表 ---------- */
.spec{width:100%;border-collapse:collapse;font-size:.93rem}
.spec th,.spec td{text-align:start;padding:13px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.spec th{width:38%;font-weight:650;color:var(--ink-2);background:var(--bg-alt)}
.table-scroll{overflow-x:auto}

/* ---------- 色板 / 把手 ---------- */
.swatches{display:flex;gap:16px;flex-wrap:wrap;margin-top:8px}
.swatch{text-align:center;font-size:.78rem;color:var(--muted)}
.swatch i{display:block;width:72px;height:52px;border-radius:9px;margin-bottom:7px;border:1px solid var(--line)}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  padding:19px 0;font-weight:650;cursor:pointer;list-style:none;
  display:flex;justify-content:space-between;gap:16px;align-items:center;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--brand);font-size:1.4rem;font-weight:400;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{padding-bottom:19px;margin:0;color:var(--muted);font-size:.95rem;max-width:72ch}

/* ---------- 表单 ---------- */
.form{display:grid;gap:15px}
.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;
  font:inherit;font-size:.95rem;background:#fff;color:var(--ink);
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand)}
.field textarea{min-height:110px;resize:vertical}
.form__note{font-size:.8rem;color:var(--muted)}
.form__msg{display:none;padding:13px 15px;border-radius:10px;font-size:.92rem}
.form__msg--ok{display:block;background:#E8F7EE;color:#116B36}
.form__msg--err{display:block;background:#FDECEC;color:#A11C1C}

/* ---------- CTA 区 ---------- */
.cta{background:linear-gradient(135deg,#F07300,#D95F00);color:#fff;border-radius:var(--radius);padding:44px 40px}
.cta h2{color:#fff}
.cta p{color:#FFE7D2;max-width:56ch}

/* ---------- 页脚 ---------- */
.foot{background:var(--bg-dark);color:#B8BCC3;padding:56px 0 26px;font-size:.9rem}
.foot a{color:#B8BCC3}
.foot a:hover{color:#fff}
.foot__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px;margin-bottom:34px}
.foot h4{color:#fff;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:14px}
.foot ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.foot__bottom{border-top:1px solid #23262C;padding-top:20px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:.82rem}
.foot li,.foot p,.foot a{overflow-wrap:anywhere}

/* ---------- 浮动 WhatsApp ---------- */
.wa-float{
  position:fixed;inset-inline-end:18px;bottom:18px;z-index:80;
  width:56px;height:56px;border-radius:50%;background:#25D366;color:#fff;
  display:grid;place-items:center;box-shadow:0 8px 24px rgba(37,211,102,.4);
}
.wa-float svg{width:30px;height:30px;fill:#fff}

/* ---------- 语言切换 ---------- */
.lang{display:flex;gap:6px;align-items:center;font-size:.82rem;font-weight:600}
.lang a{padding:5px 9px;border-radius:7px;color:var(--muted)}
.lang a.is-on{background:var(--bg-alt);color:var(--ink)}

/* ---------- 画廊 ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:10px}

/* ---------- 响应式 ---------- */
@media (max-width:900px){
  .grid--3,.grid--4{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:30px}
  .foot__grid{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:720px){
  .section{padding:52px 0}
  .nav__links{
    position:fixed;inset:64px 0 auto 0;background:#fff;flex-direction:column;
    align-items:stretch;gap:0;padding:8px 20px 20px;border-bottom:1px solid var(--line);
    display:none;box-shadow:var(--shadow);
  }
  .nav__links.is-open{display:flex}
  .nav__links a{padding:13px 0;border-bottom:1px solid var(--line);font-size:1rem}
  .nav__cta{margin:14px 0 0}
  .nav__toggle{display:block}
  .hero__inner{padding-top:90px;padding-bottom:40px}
  .hero__stats{gap:22px}
  .cta{padding:32px 24px}
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .trustbar ul{gap:14px 20px;font-size:.78rem}
  .foot__grid{grid-template-columns:1fr;gap:26px}
  .cta .btn-row{justify-content:flex-start !important}
  .hero__stat b{font-size:1.35rem}
}
body{overflow-x:hidden}

/* ---------- 阿语 RTL ---------- */
html[dir="rtl"] body{font-family:"Tajawal","Noto Sans Arabic",var(--font)}
html[dir="rtl"] .card__link::after{content:" ←"}
html[dir="rtl"] .features .ic{margin-top:2px}

/* ---------- 客户评价 ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}
.quote{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;display:flex;flex-direction:column}
.section--alt .quote{background:#fff}
.quote__stars{color:var(--brand);font-size:.95rem;letter-spacing:.14em;margin-bottom:12px}
.quote__text{font-size:1rem;line-height:1.6;color:var(--ink-2);margin:0 0 18px}
.quote__who{margin-top:auto;font-size:.84rem;color:var(--muted);border-top:1px solid var(--line);padding-top:14px}
.quote__who b{display:block;color:var(--ink);font-weight:650;font-size:.9rem;margin-bottom:2px}
@media (max-width:900px){.quotes{grid-template-columns:1fr}}

/* ---------- 语言切换（三语） ---------- */
.lang{gap:2px}
.lang a{padding:5px 8px;font-size:.8rem}

/* RTL 下电话、邮箱、型号等拉丁内容保持从左到右 */
html[dir="rtl"] .cfg-phone,
html[dir="rtl"] .cfg-email-alu,
html[dir="rtl"] .cfg-email-wpc,
html[dir="rtl"] a[href^="tel:"],
html[dir="rtl"] a[href^="mailto:"],
html[dir="rtl"] .card__tag,
html[dir="rtl"] input[type="tel"],
html[dir="rtl"] input[type="email"]{direction:ltr;unicode-bidi:isolate;text-align:start}