/* ==========================================================================
   TYI UAV — Theme (Sky Blue Design System)
   首页与 24 个机型落地页共用的样式表。
   设计基调：天空蓝 + 深海军蓝，工业级专业感，白卡片浮于天蓝渐变之上。
   ========================================================================== */

:root{
  /* 主色阶 —— 天空蓝 */
  --sky-50:#f0f9ff;
  --sky-100:#e0f2fe;
  --sky-200:#bae6fd;
  --sky-300:#7dd3fc;
  --sky-400:#38bdf8;
  --sky-500:#0ea5e9;
  --sky-600:#0284c7;
  --sky-700:#0369a1;
  --sky-800:#075985;
  --sky-900:#0c4a6e;
  --navy:#0c4a6e;
  --navy2:#075985;
  --navy3:#0369a1;

  /* 中性色 */
  --ink:#0f2233;
  --ink-soft:#1e3a4f;
  --muted:#58758c;
  --muted-2:#7e97ab;
  --line:#cfe6f5;
  --line-soft:#e2f1fb;
  --bg:#eaf6fe;
  --bg-2:#f7fcff;
  --card:#ffffff;

  /* 强调色 */
  --accent:#0ea5e9;
  --accent-dk:#0284c7;
  --accent2:#10b981;
  --accent2-dk:#059669;
  --gold:#f59e0b;
  --danger:#dc2626;

  --shadow-sm:0 1px 3px rgba(12,74,110,.08);
  --shadow:0 4px 14px rgba(12,74,110,.09);
  --shadow-lg:0 14px 38px rgba(12,74,110,.13);
  --shadow-xl:0 26px 60px rgba(12,74,110,.18);
  --r-sm:10px; --r:14px; --r-lg:20px; --r-xl:28px;
  --container:1180px;
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:hidden;}
body{overflow-x:hidden;max-width:100vw;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.7;
  background-image:
    radial-gradient(1200px 520px at 12% -6%, rgba(56,189,248,.30), transparent 62%),
    radial-gradient(980px 460px at 92% 4%, rgba(125,211,252,.26), transparent 60%),
    linear-gradient(180deg,#eaf6fe 0%, #f4fbff 38%, #ffffff 100%);
  background-attachment:fixed;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:78px 0;position:relative;}
.section-alt{background:linear-gradient(180deg,rgba(255,255,255,.72),rgba(240,249,255,.72));border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}

/* ---------- 通用标题 ---------- */
.sec-head{text-align:center;margin-bottom:46px;max-width:760px;margin-left:auto;margin-right:auto;}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;
  color:var(--sky-700);background:rgba(255,255,255,.82);border:1px solid var(--line);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
  box-shadow:var(--shadow-sm);
}
.sec-head h2{font-size:clamp(24px,3.4vw,36px);color:var(--navy);margin-bottom:12px;font-weight:800;letter-spacing:-.01em;line-height:1.25;}
.sec-head p{color:var(--muted);font-size:16px;}
.sec-head::after{
  content:"";display:block;width:62px;height:3px;border-radius:99px;margin:20px auto 0;
  background:linear-gradient(90deg,var(--sky-400),var(--accent2));
}

/* ---------- 导航 ---------- */
.nav{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.86);backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 20px rgba(12,74,110,.06);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:18px;}
.logo{font-weight:800;font-size:19px;letter-spacing:.4px;display:flex;align-items:center;gap:9px;color:var(--navy);}
.logo .dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--sky-400),var(--accent2));box-shadow:0 0 0 4px rgba(56,189,248,.18);}
.nav-links{display:flex;gap:26px;font-size:14.5px;font-weight:500;}
.nav-links a{color:var(--ink-soft);position:relative;padding:4px 0;transition:.18s;}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:-2px;height:2px;background:var(--accent);transition:right .22s;border-radius:2px;}
.nav-links a:hover{color:var(--sky-700);}
.nav-links a:hover::after{right:0;}
.langbar{display:flex;gap:2px;background:rgba(224,242,254,.85);border:1px solid var(--line);border-radius:10px;padding:3px;flex-wrap:nowrap;}
.langbar .lb{font-size:12.5px;font-weight:600;color:var(--sky-800);padding:5px 9px;border-radius:7px;transition:.16s;white-space:nowrap;display:inline-block;}
.langbar .lb:hover{background:rgba(255,255,255,.8);}
.langbar .lb[aria-current]{background:var(--accent);color:#fff;box-shadow:0 2px 8px rgba(14,165,233,.35);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-block;padding:13px 26px;border-radius:11px;font-weight:700;font-size:15px;
  cursor:pointer;border:0;transition:.2s;line-height:1.2;
}
.btn-primary{background:linear-gradient(135deg,var(--sky-500),var(--sky-600));color:#fff;box-shadow:0 8px 20px rgba(14,165,233,.32);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(14,165,233,.40);}
.btn-ghost{background:rgba(255,255,255,.14);border:1.5px solid rgba(255,255,255,.55);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.24);border-color:#fff;}
.btn-outline{background:#fff;border:1.5px solid var(--line);color:var(--sky-700);box-shadow:var(--shadow-sm);}
.btn-outline:hover{border-color:var(--accent);color:var(--accent-dk);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:13.5px;border-radius:9px;}

/* ---------- HERO ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(140deg,#0c4a6e 0%,#0369a1 45%,#0ea5e9 100%);
  padding:84px 0 92px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 420px at 82% 18%, rgba(125,211,252,.34), transparent 64%),
    radial-gradient(560px 380px at 8% 88%, rgba(16,185,129,.22), transparent 62%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:54px;align-items:center;position:relative;z-index:2;}
.hero-grid>*{min-width:0;}
.hero .eyebrow{color:var(--sky-800);background:rgba(255,255,255,.9);}
.hero h1{font-size:clamp(29px,4.3vw,50px);line-height:1.12;margin-bottom:18px;font-weight:800;letter-spacing:-.02em;overflow-wrap:break-word;word-break:normal;hyphens:auto;}
.hero .lead{font-size:17px;max-width:640px;opacity:.94;margin-bottom:30px;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.hstat{background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.22);border-radius:var(--r);padding:16px 14px;backdrop-filter:blur(6px);}
.hstat b{display:block;font-size:25px;font-weight:800;color:#fff;letter-spacing:-.5px;line-height:1.2;}
.hstat span{font-size:12px;opacity:.85;}
.hero-media{position:relative;max-width:100%;overflow:hidden;border-radius:var(--r-xl);}
.hero-media .frame{
  border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--shadow-xl);
  border:1px solid rgba(255,255,255,.28);background:#fff;
  transform:perspective(1400px) rotateY(-6deg) rotateX(2deg);
}
.hero-media .frame img{width:100%;height:auto;display:block;}
.hero-media .badge{
  position:absolute;left:-16px;bottom:26px;background:#fff;border-radius:var(--r);
  padding:14px 20px;box-shadow:var(--shadow-lg);border:1px solid var(--line-soft);
}
.hero-media .badge b{display:block;font-size:21px;color:var(--navy);line-height:1.25;}
.hero-media .badge span{font-size:12px;color:var(--muted);}
.hero-media .tag{
  position:absolute;right:16px;top:16px;background:rgba(255,255,255,.92);
  color:var(--sky-800);font-size:11.5px;font-weight:800;letter-spacing:.08em;
  padding:6px 12px;border-radius:999px;text-transform:uppercase;
}

/* ---------- 信任条 ---------- */
.trustbar{background:rgba(255,255,255,.9);border-bottom:1px solid var(--line);}
.trustbar .inner{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.trustbar .inner>*{min-width:0;}
.trust-item{padding:22px 20px;text-align:center;border-right:1px solid var(--line-soft);}
.trust-item:last-child{border-right:0;}
.trust-item b{display:block;font-size:22px;color:var(--sky-600);font-weight:800;letter-spacing:-.3px;}
.trust-item span{font-size:12.5px;color:var(--muted);}

/* ---------- 产品卡片 ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;}
.prod-grid>*{min-width:0;}
.prod{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:.25s;display:flex;flex-direction:column;
}
.prod:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--sky-300);}
.prod-img{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,var(--sky-100),var(--sky-200));}
.prod-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.prod:hover .prod-img img{transform:scale(1.05);}
.prod-img .tag{
  position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--sky-800);
  font-size:11.5px;font-weight:800;padding:5px 11px;border-radius:999px;letter-spacing:.04em;
  box-shadow:var(--shadow-sm);
}
.prod-body{padding:24px;display:flex;flex-direction:column;flex:1;}
.prod h3{font-size:20px;color:var(--navy);margin-bottom:8px;font-weight:800;letter-spacing:-.01em;}
.prod .tl{color:var(--muted);font-size:14px;margin-bottom:18px;min-height:44px;}
.specs{display:grid;grid-template-columns:1fr 1fr;gap:10px 16px;border-top:1px solid var(--line-soft);padding-top:16px;margin-bottom:14px;}
.specs div span{display:block;font-size:11px;color:var(--muted-2);text-transform:uppercase;letter-spacing:.5px;font-weight:600;}
.specs div b{font-size:15px;color:var(--ink);}
.uses{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:16px;}
.use-chip{background:var(--sky-50);border:1px solid var(--line-soft);color:var(--sky-800);font-size:12px;font-weight:600;padding:4px 11px;border-radius:999px;}
.prod .uses b{color:var(--muted);font-weight:600;}
.prod-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;}
.prod .more{font-size:13.5px;font-weight:700;color:var(--accent-dk);border-bottom:2px solid var(--sky-300);padding-bottom:2px;transition:.18s;}
.prod .more:hover{color:var(--sky-800);border-color:var(--sky-600);}
.badge-dual{display:inline-block;background:#fef2f2;color:var(--danger);font-size:11.5px;font-weight:700;padding:4px 10px;border-radius:7px;margin-bottom:12px;}

/* ---------- 对比表 ---------- */
.cmp-wrap{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);overflow:hidden;max-width:100%;}
.cmp-scroll{overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;max-width:100%;}
.cmp-table{width:100%;border-collapse:collapse;min-width:760px;table-layout:fixed;}
.cmp-table th,.cmp-table td{padding:15px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line-soft);}
.cmp-table thead th{
  background:linear-gradient(135deg,var(--sky-600),var(--sky-700));color:#fff;
  font-weight:700;font-size:13.5px;letter-spacing:.02em;white-space:nowrap;
}
.cmp-table thead th:first-child{background:linear-gradient(135deg,var(--navy),var(--navy3));}
.cmp-table tbody th{font-weight:700;color:var(--navy);background:var(--sky-50);font-size:13px;white-space:nowrap;}
.cmp-table tbody tr:nth-child(even) td{background:rgba(240,249,255,.5);}
.cmp-table tbody tr:hover td{background:var(--sky-50);}
.cmp-table td b{color:var(--sky-700);}
.cmp-note{margin-top:14px;font-size:12.5px;color:var(--muted);text-align:center;}

/* ---------- 场景 ---------- */
.sc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.sc-grid>*{min-width:0;}
.sc{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:.25s;
}
.sc:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.sc-img{height:150px;overflow:hidden;background:var(--sky-100);}
.sc-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.sc:hover .sc-img img{transform:scale(1.06);}
.sc-body{padding:20px;}
.sc-ic{font-size:26px;display:block;margin-bottom:8px;}
.sc-body p{font-size:13.5px;color:var(--muted);}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;position:relative;}
.flow>*{min-width:0;}
.flow::before{content:"";position:absolute;top:32px;left:8%;right:8%;height:2px;background:linear-gradient(90deg,var(--sky-200),var(--sky-400),var(--accent2));z-index:0;}
.flow-step{position:relative;z-index:1;text-align:center;}
.flow-num{
  width:64px;height:64px;margin:0 auto 16px;border-radius:50%;
  background:#fff;border:3px solid var(--sky-300);color:var(--sky-700);
  display:flex;align-items:center;justify-content:center;font-size:21px;font-weight:800;
  box-shadow:0 6px 18px rgba(12,74,110,.10);
}
.flow-step h4{font-size:15px;color:var(--navy);margin-bottom:7px;font-weight:700;}
.flow-step p{font-size:13px;color:var(--muted);padding:0 6px;}

/* ---------- 制造能力 ---------- */
.mfg-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:40px;align-items:start;}
.mfg-grid>*{min-width:0;}
/* 大图占满上行，下方 3 张横排 —— 4 张图不出现孤立掉行 */
.mfg-media{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:1fr;gap:12px;}
.mfg-media figure{border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);background:#fff;margin:0;display:flex;flex-direction:column;}
.mfg-media figure:nth-child(1){grid-column:span 3;}
.mfg-media img{width:100%;height:100%;object-fit:cover;display:block;flex:1;min-height:0;}
.mfg-media figure:nth-child(1) img{aspect-ratio:16/7;}
.mfg-media figure:nth-child(n+2) img{aspect-ratio:3/2;}
.mfg-media figcaption{font-size:11.5px;color:var(--muted);padding:9px 12px;background:#fff;border-top:1px solid var(--line-soft);}
.mfg-list{display:grid;gap:14px;margin-top:0;align-content:start;}
.mfg-item{display:flex;gap:14px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;box-shadow:var(--shadow-sm);}
.mfg-ic{flex:0 0 40px;height:40px;border-radius:11px;background:linear-gradient(135deg,var(--sky-100),var(--sky-200));color:var(--sky-700);display:flex;align-items:center;justify-content:center;font-size:19px;}
.mfg-item h4{font-size:15px;color:var(--navy);margin-bottom:3px;font-weight:700;}
.mfg-item p{font-size:13px;color:var(--muted);}

/* ---------- 市场 ---------- */
.region-cols{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.region-cols>*{min-width:0;}
.rcol{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px 26px;box-shadow:var(--shadow-sm);}
.rcol h4{font-size:17px;color:var(--navy);margin-bottom:6px;font-weight:800;}
.rcol .sub{font-size:12.5px;color:var(--muted);margin-bottom:14px;}
.rcol li{padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px;display:flex;justify-content:space-between;align-items:center;gap:10px;}
.rcol li:last-child{border-bottom:0;}
.pill{font-size:11px;font-weight:800;padding:3px 9px;border-radius:999px;white-space:nowrap;}
.p1{background:#dcfce7;color:#15803d;} .p2{background:#fef3c7;color:#b45309;} .p3{background:var(--sky-100);color:var(--sky-800);}

/* ---------- 合规 ---------- */
.comp{
  background:linear-gradient(135deg,#0c4a6e,#0369a1);color:#fff;border-radius:var(--r-lg);
  padding:36px 40px;box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.comp::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 300px at 88% 12%,rgba(125,211,252,.30),transparent 62%);}
.comp>*{position:relative;z-index:1;}
.comp h3{font-size:21px;margin-bottom:18px;font-weight:800;display:flex;align-items:center;gap:10px;}
.comp ul{margin-left:20px;}
.comp li{margin:9px 0;font-size:14px;opacity:.94;line-height:1.65;}
.comp li::marker{color:var(--sky-300);}

/* ---------- 画廊 ---------- */
.gal-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.gal-grid>*{min-width:0;}
.gal{position:relative;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);background:#fff;aspect-ratio:4/3;}
.gal img{width:100%;height:100%;object-fit:cover;transition:transform .55s;}
.gal:hover img{transform:scale(1.07);}
.gal figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:26px 16px 12px;
  background:linear-gradient(transparent,rgba(7,45,66,.82));color:#fff;font-size:12.5px;font-weight:600;
}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:0 auto;}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r);margin-bottom:11px;overflow:hidden;box-shadow:var(--shadow-sm);transition:.18s;}
.faq-item[open]{box-shadow:var(--shadow);border-color:var(--sky-300);}
.faq-item summary{cursor:pointer;padding:17px 22px;font-weight:700;color:var(--navy);font-size:15px;list-style:none;position:relative;padding-right:46px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";position:absolute;right:20px;top:15px;font-size:21px;color:var(--accent);font-weight:400;line-height:1;}
.faq-item[open] summary::after{content:"−";}
.faq-item p{padding:0 22px 20px;font-size:14.5px;color:var(--muted);}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--sky-500),var(--sky-700) 70%,var(--navy));
  color:#fff;border-radius:var(--r-xl);padding:44px 48px;box-shadow:var(--shadow-lg);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(520px 260px at 84% 22%,rgba(255,255,255,.20),transparent 62%);}
.cta-band>*{position:relative;z-index:1;}
.cta-band h3{font-size:clamp(20px,2.6vw,28px);margin-bottom:8px;font-weight:800;}
.cta-band p{opacity:.92;font-size:15px;max-width:620px;}

/* ---------- 表单 ---------- */
.contact{background:#fff;}
.contact-wrap{display:grid;grid-template-columns:1.06fr .94fr;gap:38px;align-items:start;}
.contact-wrap>*{min-width:0;}
.form-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--shadow);}
form .field{margin-bottom:15px;}
form .row2{display:grid;grid-template-columns:1fr 1fr;gap:15px;}
form label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:6px;font-weight:700;letter-spacing:.02em;}
form input,form select,form textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:14px;
  font-family:inherit;background:var(--bg-2);color:var(--ink);transition:.16s;
}
form textarea{resize:vertical;min-height:104px;}
form input:focus,form select:focus,form textarea:focus{outline:none;border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(14,165,233,.13);}
form input::placeholder,form textarea::placeholder{color:var(--muted-2);}
.info-box{background:linear-gradient(160deg,var(--sky-50),rgba(255,255,255,.9));border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow-sm);}
.info-box h4{color:var(--navy);margin-bottom:12px;font-size:17px;font-weight:800;}
.info-box p{font-size:13.5px;color:var(--muted);margin:7px 0;}
.info-box a{color:var(--accent-dk);font-weight:600;}
.info-box a:hover{text-decoration:underline;}
.note{font-size:12px;color:var(--muted-2);margin-top:12px;line-height:1.6;}
.ok-msg{display:none;background:#dcfce7;color:#15803d;padding:13px 16px;border-radius:10px;margin-top:14px;font-size:14px;font-weight:600;border:1px solid #bbf7d0;}

/* ---------- 页脚 ---------- */
footer{background:var(--navy);color:#bcd7e8;padding:52px 0 30px;font-size:13.5px;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;margin-bottom:34px;}
.foot-grid>*{min-width:0;}
.foot-brand .logo{color:#fff;margin-bottom:12px;}
.foot-brand p{font-size:13px;line-height:1.75;color:#a8c8de;max-width:330px;}
footer h5{color:#fff;font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px;}
footer li{margin:8px 0;}
footer li a{color:#a8c8de;transition:.16s;}
footer li a:hover{color:#fff;}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:12.5px;color:#8fb4cc;}

/* ---------- 响应式 ---------- */
@media(max-width:1000px){
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .hero-media{max-width:620px;}
  .prod-grid{grid-template-columns:1fr;}
  .sc-grid{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(3,1fr);}
  .flow::before{display:none;}
  .mfg-grid{grid-template-columns:1fr;gap:32px;}
  .gal-grid{grid-template-columns:repeat(2,1fr);}
  .contact-wrap{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .trustbar .inner{grid-template-columns:repeat(2,1fr);}
  .trust-item:nth-child(2){border-right:0;}
  .trust-item:nth-child(-n+2){border-bottom:1px solid var(--line-soft);}
}
@media(max-width:720px){
  .container{padding:0 16px;width:100%;}
  .section{padding:52px 0;}
  /* 导航纵向堆叠，语言按钮单独一行 —— 彻底避免窄屏溢出 */
  .nav-inner{height:auto;flex-direction:column;align-items:stretch;padding:10px 0;gap:8px;}
  .logo{font-size:17px;}
  .langbar{order:2;margin-left:0;justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;}
  .langbar::-webkit-scrollbar{display:none;}
  .langbar .lb{padding:4px 8px;font-size:12px;}
  .nav-links{order:3;width:100%;gap:14px;overflow-x:auto;padding-bottom:2px;flex-wrap:nowrap;}
  .nav-links::-webkit-scrollbar{display:none;}
  .nav-links a{white-space:nowrap;font-size:13.5px;}
  /* Hero 文字与图片堆叠，标题不再溢出 */
  .hero{padding:52px 0 58px;}
  .hero-grid{grid-template-columns:1fr;gap:26px;}
  .hero h1{font-size:clamp(24px,7.4vw,32px);word-break:break-word;overflow-wrap:anywhere;}
  .hero .lead{font-size:15.5px;}
  .hero-media{width:100%;max-width:100%;}
  .hero-media .frame{transform:none;}
  .hero-media .badge{left:10px;bottom:12px;padding:11px 15px;}
  .hero-media .badge b{font-size:17px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:10px;}
  .hstat{padding:13px 12px;}
  .hstat b{font-size:21px;}
  .sec-head h2{font-size:23px;}
  .cmp-wrap{max-width:100%;overflow:hidden;}
  .cmp-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;max-width:100%;}
  .cmp-table{min-width:620px;}
  .sc-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .region-cols{grid-template-columns:1fr;}
  .gal-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;}
  form .row2{grid-template-columns:1fr;}
  .comp{padding:28px 24px;}
  .cta-band{padding:28px 22px;}
  .mfg-media{grid-template-columns:1fr 1fr;}
  .mfg-media figure:nth-child(1){grid-column:span 2;}
}

/* ---------- RTL ---------- */
html[dir="rtl"] body{direction:rtl;}
html[dir="rtl"] .spec-table th,html[dir="rtl"] .cmp-table th,html[dir="rtl"] .cmp-table td{text-align:right;}
html[dir="rtl"] .comp ul{margin-left:0;margin-right:20px;}
html[dir="rtl"] .prod .more{border-bottom:2px solid var(--sky-300);}