/* ==========================================================================
   君扬化学 · 主样式  (JunYong Demo Site — Main Stylesheet)
   Reuses longwoods.cn design language · 100% offline · no external assets
   ========================================================================== */

:root {
  /* Sky Blue (primary) */
  --blue-700:#2e6f9a; --blue-500:#4a89bc; --blue-400:#7bafe1; --blue-200:#b6d4ee; --blue-50:#eef6fc;
  /* Fresh Green (secondary / match) */
  --green-700:#6b9220; --green-500:#88b523; --green-400:#9ec72d; --green-200:#d6e89e; --green-50:#f3f9e8;
  /* Accents & neutrals */
  --accent:#e8a845; --accent-50:#fdf6ec;
  --text:#1a2e36; --muted:#5b6e76; --bg:#f7fafc; --border:#e3e9eb;
  --white:#fff; --dark:#0f2a36;
  /* Shadows / radii */
  --shadow-sm:0 1px 3px rgba(15,40,55,.06),0 1px 2px rgba(15,40,55,.04);
  --shadow-md:0 4px 14px rgba(15,40,55,.08),0 2px 4px rgba(15,40,55,.04);
  --shadow-lg:0 14px 36px rgba(15,40,55,.12),0 4px 10px rgba(15,40,55,.05);
  --radius:10px; --radius-lg:16px;
  --container:1200px;
  --header-h:58px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
*{margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--text);background:var(--bg);line-height:1.7;font-size:16px;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  display:flex;flex-direction:column;min-height:100vh;
}
body > header,body > main,body > footer{flex-shrink:0}
body > main{flex:1 0 auto}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-500);text-decoration:none;transition:color .15s var(--ease)}
a:hover{color:var(--blue-700)}
.mono{font-family:"SF Mono","Cascadia Mono","Consolas",ui-monospace,monospace;font-feature-settings:"tnum" 1}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ Header ============ */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.7);border-bottom:1px solid rgba(0,0,0,.05)}
.header-row{display:flex;align-items:center;gap:18px;height:var(--header-h)}
.brand{display:inline-flex;align-items:center;flex-shrink:0}
.brand img{height:calc(var(--header-h) * 0.9);width:auto}
.header-right{margin-left:auto;display:flex;align-items:center;gap:6px}
.nav{display:flex;align-items:center;gap:2px}
.nav a{padding:9px 14px;border-radius:8px;color:var(--text);font-weight:500;font-size:15px;white-space:nowrap}
.nav a:hover{background:var(--blue-50);color:var(--blue-700)}
.nav a.is-active{background:var(--blue-50);color:var(--blue-700);font-weight:600}
.lang{position:relative;margin-left:6px}
.lang-btn{display:inline-flex;align-items:center;gap:6px;padding:9px 14px;border:1px solid rgba(0,0,0,.12);border-radius:8px;background:transparent;color:var(--text);font-size:14px;cursor:pointer;font-family:inherit;transition:all .15s var(--ease);white-space:nowrap}
.lang-btn:hover{border-color:var(--blue-400);background:var(--blue-50);color:var(--blue-700)}
.lang-btn svg{width:14px;height:14px}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);min-width:200px;background:#fff;border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow-md);padding:6px;display:none;z-index:60}
.lang-menu.open{display:block}
.lang-menu a{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:6px;color:var(--text);font-size:14px}
.lang-menu a:hover{background:var(--blue-50);color:var(--blue-700)}
.lang-menu a.is-active{color:var(--blue-700);font-weight:600;background:var(--blue-50)}
.lang-menu a.is-placeholder{color:var(--muted);font-style:italic}
.lang-menu a.is-placeholder:hover{background:var(--green-50);color:var(--green-700)}
.lang-menu .check{margin-left:auto;color:var(--blue-500)}
.hamburger{display:none;border:0;background:transparent;cursor:pointer;padding:8px;border-radius:8px;color:var(--text);align-items:center;justify-content:center}
.hamburger:hover{background:var(--blue-50)}
.hamburger svg{width:24px;height:24px}

/* ============ Hero ============ */
.hero{position:relative;color:#fff;min-height:100vh;margin-top:calc(-1 * var(--header-h));display:flex;align-items:center;background:#0f3344;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:var(--dark) url("../img/hero.jpg") center/cover no-repeat;z-index:0}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(15,42,54,.72) 0%,rgba(46,111,154,.45) 55%,rgba(110,150,40,.25) 100%);z-index:1}
.hero-video-wrap{position:absolute;inset:0;z-index:0;overflow:hidden;background:transparent}
.hero-video-wrap video{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:100vw;height:56.25vw;min-height:100%;min-width:177.7778vh;object-fit:cover;display:block;background:#000}
.hero-inner{position:relative;z-index:2;max-width:var(--container);margin:0 auto;padding:100px 24px;width:100%}
.hero-eyebrow{display:inline-block;padding:6px 16px;border:1px solid rgba(255,255,255,.4);border-radius:100px;font-size:12px;letter-spacing:2.5px;margin-bottom:20px;color:rgba(255,255,255,.92);backdrop-filter:blur(4px);background:rgba(255,255,255,.06)}
.hero h1{font-size:50px;font-weight:700;line-height:1.15;margin-bottom:18px;text-shadow:0 2px 16px rgba(0,0,0,.3);letter-spacing:.5px}
.hero .sub{font-size:22px;color:#dceaf5;margin-bottom:10px;text-shadow:0 1px 8px rgba(0,0,0,.25);font-weight:500}
.hero .slogan-en{font-size:14px;color:rgba(206,228,236,.6);letter-spacing:2.5px;margin-bottom:36px;text-transform:uppercase}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-scroll-hint{position:absolute;left:50%;bottom:10px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;color:rgba(255,255,255,.7);font-size:11px;letter-spacing:2.5px;text-transform:uppercase;text-decoration:none;cursor:pointer;transition:color .2s var(--ease);z-index:3;font-weight:500}
.hero-scroll-hint:hover{color:#fff}
.hero-scroll-hint .chev{width:30px;height:30px;display:flex;align-items:center;justify-content:center;border:1.5px solid rgba(255,255,255,.5);border-radius:50%;background:rgba(255,255,255,.08);backdrop-filter:blur(4px);animation:scroll-bounce 1.8s var(--ease) infinite}
.hero-scroll-hint .chev svg{width:14px;height:14px}
@keyframes scroll-bounce{0%,100%{transform:translateY(0);opacity:.7}50%{transform:translateY(7px);opacity:1}}

/* ============ Page hero (inner pages) ============ */
.page-hero{background:linear-gradient(135deg,var(--blue-700) 0%,var(--blue-500) 100%);color:#fff;padding:60px 0 48px;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;right:-80px;top:-100px;width:400px;height:400px;border-radius:50%;background:rgba(158,199,45,.12);pointer-events:none}
.page-hero::before{content:"";position:absolute;left:-60px;bottom:-120px;width:280px;height:280px;border-radius:50%;background:rgba(255,255,255,.04);pointer-events:none}
.page-hero h1{font-size:36px;font-weight:700;margin-bottom:8px;position:relative;z-index:1}
.page-hero .lead{font-size:16px;color:rgba(220,234,245,.55);max-width:720px;position:relative;z-index:1}

/* ============ Breadcrumb ============ */
.crumbs{padding:14px 0;background:#fff;border-bottom:1px solid var(--border);font-size:13.5px;color:var(--muted)}
.crumbs .container{display:flex;align-items:center;flex-wrap:wrap;gap:2px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--blue-700)}
.crumbs .sep{margin:0 8px;color:#c5d0d4}
.crumbs .here{color:var(--text);font-weight:500}

/* ============ Buttons ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:8px;font-weight:600;font-size:15px;border:1.5px solid transparent;cursor:pointer;font-family:inherit;transition:all .15s var(--ease);line-height:1.2;white-space:nowrap;text-decoration:none}
.btn-primary{background:var(--blue-700);color:#fff;border-color:var(--blue-700)}
.btn-primary:hover{background:#244f6e;border-color:#244f6e;color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(46,111,154,.28)}
.btn-secondary{background:var(--blue-500);color:#fff;border-color:var(--blue-500)}
.btn-secondary:hover{background:#3a75a3;border-color:#3a75a3;color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(74,137,188,.25)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);backdrop-filter:blur(4px)}
.btn-outline:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--blue-700);border-color:var(--blue-200)}
.btn-ghost:hover{background:var(--blue-50);color:var(--blue-700);border-color:var(--blue-400)}
.btn-green{background:var(--green-500);color:#fff;border-color:var(--green-500)}
.btn-green:hover{background:#759d1f;border-color:#759d1f;color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(136,181,35,.28)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn svg{width:16px;height:16px}

/* ============ Sections ============ */
.section{padding:80px 0}
.section-tight{padding:48px 0}
.section-title{text-align:center;margin-bottom:48px}
.section-title .eyebrow{display:inline-block;font-size:12px;letter-spacing:3px;color:var(--green-700);font-weight:600;margin-bottom:10px;text-transform:uppercase}
.section-title h2{font-size:32px;color:var(--blue-700);margin-bottom:10px;font-weight:700}
.section-title .desc{color:var(--muted);max-width:620px;margin:0 auto;font-size:15.5px;line-height:1.8}
.section-title .accent{display:block;width:54px;height:4px;border-radius:2px;background:linear-gradient(90deg,var(--blue-400),var(--green-400));margin:14px auto 0}

/* ============ Service cards ============ */
.services{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.service-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:30px 24px;transition:all .2s var(--ease);position:relative;overflow:hidden}
.service-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue-400),var(--green-400));opacity:0;transition:opacity .2s var(--ease)}
.service-card:hover{border-color:var(--blue-200);box-shadow:var(--shadow-md);transform:translateY(-4px)}
.service-card:hover::before{opacity:1}
.service-card .num{font-family:"SF Mono",Consolas,monospace;font-size:12.5px;color:var(--green-700);font-weight:700;letter-spacing:2.5px;margin-bottom:12px}
.service-card h3{font-size:17px;color:var(--blue-700);margin-bottom:10px;line-height:1.45;font-weight:600}
.service-card p{color:var(--muted);font-size:14.5px;line-height:1.75;margin:0}

/* ============ Stats band ============ */
.stats{background:linear-gradient(135deg,var(--blue-700) 0%,var(--blue-500) 100%);color:#fff;padding:56px 0;position:relative;overflow:hidden}
.stats::before{content:"";position:absolute;right:-60px;bottom:-100px;width:320px;height:320px;border-radius:50%;background:rgba(158,199,45,.12)}
.stats::after{content:"";position:absolute;left:-40px;top:-80px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.05)}
.stats .container{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;text-align:center;position:relative;z-index:1}
.stat .v{font-family:"SF Mono",Consolas,monospace;font-size:44px;font-weight:700;letter-spacing:-1px;margin-bottom:6px;line-height:1}
.stat .v .u{font-size:18px;font-weight:500;margin-left:3px;opacity:.85}
.stat .l{font-size:13px;color:rgba(220,234,245,.55);letter-spacing:2px;text-transform:uppercase}
.stat .v.gold{color:var(--accent)}

/* ============ Product cards ============ */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.product-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:all .2s var(--ease);display:flex;flex-direction:column;gap:6px;position:relative;text-decoration:none;color:inherit}
.product-card:hover{border-color:var(--blue-200);box-shadow:var(--shadow-md);transform:translateY(-3px);color:inherit}
.product-card .code{font-family:"SF Mono",Consolas,monospace;font-size:12px;color:var(--blue-700);font-weight:700;letter-spacing:1.5px;background:var(--blue-50);padding:4px 10px;border-radius:5px;align-self:flex-start}
.product-card h3{font-size:18px;color:var(--text);margin:8px 0 0;font-weight:600}
.product-card .en{font-size:13px;color:var(--muted);font-style:italic;margin-top:-2px}
.product-card .specs-preview{font-size:12.5px;color:var(--muted);font-family:"SF Mono",Consolas,monospace;line-height:1.7;margin-top:10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.product-card .more{margin-top:auto;padding-top:12px;font-size:13.5px;color:var(--blue-500);font-weight:600}
.product-card .more::after{content:" →";transition:transform .15s var(--ease);display:inline-block}
.product-card:hover .more::after{transform:translateX(3px)}
.product-card .badge{position:absolute;top:16px;right:16px;background:var(--green-400);color:#fff;font-size:10.5px;padding:3px 9px;border-radius:4px;font-weight:700;letter-spacing:1px;text-transform:uppercase}
.product-card .badge-gold{background:var(--accent)}
.product-card .badge-blue{background:var(--blue-500)}

/* ============ Product detail ============ */
.detail-layout{display:grid;grid-template-columns:1fr 320px;gap:48px;padding:56px 0;align-items:start}
.detail-body h1{font-size:34px;color:var(--blue-700);margin-bottom:6px;font-weight:700;line-height:1.2}
.detail-body .en-name{font-size:18px;color:var(--muted);font-style:italic;margin-bottom:20px}
.detail-body .formula{display:inline-block;font-family:"SF Mono",Consolas,monospace;font-size:13px;background:var(--blue-50);color:var(--blue-700);padding:4px 12px;border-radius:5px;margin-bottom:24px}
.detail-body .lead{font-size:16px;color:var(--text);line-height:1.9;margin-bottom:24px;padding:18px 22px;background:var(--blue-50);border-left:4px solid var(--blue-400);border-radius:0 8px 8px 0}
.detail-body h2{font-size:21px;color:var(--blue-700);margin:30px 0 14px;padding-bottom:8px;border-bottom:2px solid var(--blue-50);font-weight:600}
.detail-body p{margin-bottom:14px;line-height:1.85;color:var(--text)}
.detail-body ul{padding-left:22px;margin-bottom:14px}
.detail-body li{margin-bottom:8px;line-height:1.85}
.detail-body li strong{color:var(--blue-700)}
.spec-card{position:sticky;top:calc(var(--header-h) + 24px);background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-sm)}
.spec-card h4{font-size:12px;color:var(--muted);letter-spacing:2.5px;margin-bottom:16px;text-transform:uppercase;font-weight:700;display:flex;align-items:center;gap:8px}
.spec-card h4::before{content:"";width:18px;height:2px;background:var(--green-400);border-radius:1px}
.spec-list{list-style:none;padding:0;margin:0 0 18px}
.spec-list li{display:flex;justify-content:space-between;align-items:baseline;padding:11px 0;border-bottom:1px dashed var(--border);font-size:14px;gap:12px}
.spec-list li:last-child{border-bottom:0}
.spec-list .k{color:var(--muted);font-size:13.5px;flex-shrink:0}
.spec-list .v{font-family:"SF Mono",Consolas,monospace;color:var(--blue-700);font-weight:600;text-align:right;font-size:14px}
.standards{padding-top:16px;border-top:1px solid var(--border)}
.standards h5{font-size:11.5px;color:var(--muted);letter-spacing:2px;margin-bottom:10px;text-transform:uppercase;font-weight:700}
.standards .std{display:inline-block;font-family:"SF Mono",Consolas,monospace;background:var(--blue-50);color:var(--blue-700);font-size:12px;padding:4px 10px;border-radius:4px;margin:0 6px 6px 0}
.standards .std-tag{font-size:11px;color:var(--muted);margin-right:4px;font-style:italic}
.spec-card .actions{display:flex;flex-direction:column;gap:8px;margin-top:18px;padding-top:18px;border-top:1px solid var(--border)}

/* ============ Business scope ============ */
.scope{display:grid;grid-template-columns:1.3fr 1fr;gap:48px;align-items:center}
.scope-text h2{font-size:28px;color:var(--blue-700);margin-bottom:18px;font-weight:700}
.scope-text p{color:var(--text);line-height:1.9;margin-bottom:14px;font-size:15.5px}
.scope-visual{background:#fff;border-radius:var(--radius-lg);padding:28px;border:1px solid var(--border);box-shadow:var(--shadow-sm)}
.scope-visual h4{font-size:12px;color:var(--muted);letter-spacing:2.5px;margin-bottom:16px;text-transform:uppercase;font-weight:700}
.scope-list{list-style:none;padding:0;margin:0}
.scope-list li{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px dashed var(--border);font-size:14.5px}
.scope-list li:last-child{border-bottom:0}
.scope-list .dot{width:8px;height:8px;border-radius:50%;background:var(--green-400);flex-shrink:0}

/* ============ Image carousel ============ */
.carousel{position:relative;overflow:hidden;border-radius:var(--radius-lg);border:1px solid var(--border);background:#0f2a36;box-shadow:var(--shadow-md);aspect-ratio:16/9}
.carousel-track{display:flex;height:100%;width:100%;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.carousel-track::-webkit-scrollbar{display:none}
.carousel-slide{flex:0 0 100%;scroll-snap-align:start;position:relative;display:block}
.carousel-slide img{width:100%;height:100%;object-fit:cover;display:block}
.carousel-slide .caption{position:absolute;left:0;right:0;bottom:0;padding:22px 26px;background:linear-gradient(0deg,rgba(15,42,54,.78) 0%,rgba(15,42,54,0) 100%);color:#fff;font-size:14.5px;line-height:1.6;pointer-events:none}
.carousel-slide .caption strong{display:block;font-size:16px;margin-bottom:4px;letter-spacing:1px}
.carousel-dots{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);display:flex;gap:8px;z-index:3}
.carousel-dots button{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.45);border:0;padding:0;cursor:pointer;transition:background .2s var(--ease),transform .2s var(--ease)}
.carousel-dots button:hover{transform:scale(1.25)}
.carousel-dots button.is-active{background:#fff;width:22px;border-radius:99px}
.carousel-arrow{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border-radius:50%;background:rgba(15,42,54,.55);color:#fff;border:0;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:3;opacity:0;transition:opacity .25s var(--ease),background .2s var(--ease);backdrop-filter:blur(6px)}
.carousel:hover .carousel-arrow{opacity:1}
.carousel-arrow:hover{background:rgba(15,42,54,.85)}
.carousel-arrow.prev{left:14px}
.carousel-arrow.next{right:14px}
.carousel-arrow svg{width:18px;height:18px}
@media (max-width:680px){
  .carousel-arrow{width:34px;height:34px;opacity:1;background:rgba(15,42,54,.4)}
  .carousel-arrow.prev{left:8px}
  .carousel-arrow.next{right:8px}
  .carousel-slide .caption{padding:16px 18px;font-size:13px}
  .carousel-slide .caption strong{font-size:14px}
}

/* ============ Philosophy ============ */
.philosophy{background:linear-gradient(135deg,var(--green-50) 0%,#fff 100%);padding:44px 0;text-align:center;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.philosophy .items{display:flex;justify-content:center;gap:36px;flex-wrap:wrap;font-size:22px;color:var(--blue-700);font-weight:600}
.philosophy .items span{display:flex;align-items:center;gap:14px}
.philosophy .items .sep{color:var(--green-400);font-size:18px}

/* ============ About page ============ */
.about-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:36px 0 48px}
.about-stat{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px 18px;text-align:center;transition:all .2s var(--ease)}
.about-stat:hover{border-color:var(--blue-200);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.about-stat .v{font-family:"SF Mono",Consolas,monospace;font-size:32px;color:var(--blue-700);font-weight:700;margin-bottom:4px;line-height:1}
.about-stat .v .u{font-size:15px;font-weight:500;margin-left:2px;color:var(--muted)}
.about-stat .l{font-size:13px;color:var(--muted);margin-top:2px}
.about-prose{max-width:820px;margin:0 auto;font-size:16px;line-height:1.95;color:var(--text)}
.about-prose p{margin-bottom:18px}
.about-prose .quote{background:linear-gradient(135deg,var(--blue-50) 0%,var(--green-50) 100%);padding:28px 36px;border-radius:var(--radius);color:var(--blue-700);font-size:17px;text-align:center;margin:36px 0;border-left:4px solid var(--blue-400);font-weight:500}
.about-prose .quote .quote-en{display:block;font-size:12px;letter-spacing:2px;color:var(--muted);margin-top:8px;text-transform:uppercase;font-weight:400}
.about-philosophy{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:36px 0}
.about-philosophy .item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px 16px;text-align:center;font-size:22px;color:var(--blue-700);font-weight:600;transition:all .2s var(--ease)}
.about-philosophy .item:hover{background:var(--blue-50);border-color:var(--blue-400);transform:translateY(-2px)}
.about-philosophy .sub{font-size:11px;color:var(--muted);letter-spacing:2px;margin-top:5px;font-weight:400;text-transform:uppercase}

/* ============ Contact ============ */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.contact-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:34px 24px;text-align:center;transition:all .2s var(--ease)}
.contact-card:hover{border-color:var(--blue-200);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.contact-card .icon{width:54px;height:54px;border-radius:14px;background:var(--blue-50);color:var(--blue-700);display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px}
.contact-card .icon svg{width:26px;height:26px}
.contact-card h3{font-size:13px;color:var(--muted);letter-spacing:2.5px;margin-bottom:12px;text-transform:uppercase;font-weight:600}
.contact-card .v{font-size:19px;color:var(--text);font-weight:600;word-break:break-word;line-height:1.5}
.contact-card .v a{color:var(--text)}
.contact-card .v a:hover{color:var(--blue-700)}
.contact-card .hint{font-size:12.5px;color:var(--muted);margin-top:8px}
.qr-section{margin-top:64px;text-align:center}
.qr-section h3{font-size:13px;color:var(--muted);letter-spacing:2.5px;margin-bottom:22px;text-transform:uppercase;font-weight:600}
.qr-row{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;max-width:580px;margin:0 auto}
.qr-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-align:center;transition:all .2s var(--ease)}
.qr-card:hover{border-color:var(--green-400);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.qr-card img{width:170px;height:170px;margin:0 auto 14px;border:1px solid var(--border);border-radius:8px;padding:6px;background:#fff}
.qr-card h4{font-size:15px;color:var(--blue-700);margin-bottom:4px;font-weight:600}
.qr-card p{font-size:12px;color:var(--muted)}

/* ============ Liquid fertilizer sub-table ============ */
.subtable{margin:24px 0;width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);font-size:14.5px}
.subtable th{background:var(--blue-50);color:var(--blue-700);text-align:left;padding:12px 16px;font-size:13px;font-weight:600;letter-spacing:.5px}
.subtable td{padding:12px 16px;border-bottom:1px solid var(--border);font-family:"SF Mono",Consolas,monospace;color:var(--text)}
.subtable tr:last-child td{border-bottom:0}
.subtable tr:hover td{background:var(--blue-50)}

/* ============ Footer ============ */
.site-footer{background:var(--text);color:rgba(220,234,245,.55);padding:56px 0 24px}
.site-footer .container{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
.site-footer h5{font-size:13px;color:#fff;letter-spacing:2.5px;margin-bottom:16px;text-transform:uppercase;font-weight:600}
.site-footer p,.site-footer li{color:rgba(220,234,245,.6);font-size:14px;line-height:1.9}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer ul li{margin-bottom:6px}
.site-footer ul a{color:rgba(220,234,245,.65);font-size:14px}
.site-footer ul a:hover{color:var(--green-400)}
.site-footer .brand-block img{height:42px;margin-bottom:14px;background:#fff;padding:8px 10px;border-radius:6px}
.site-footer .brand-block p{font-size:13px;line-height:1.7;margin-bottom:6px}
.site-footer .copyright{border-top:1px solid #2a4350;padding-top:20px;text-align:center;font-size:13px;color:#7c95a3}
.site-footer .copyright a{color:#7c95a3;margin:0 8px}
.site-footer .copyright a:hover{color:var(--green-400)}

/* ============ Placeholder page ============ */
.placeholder-page{min-height:62vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:80px 24px}
.placeholder-page .inner{max-width:540px;background:#fff;padding:48px 36px;border-radius:var(--radius-lg);border:1px solid var(--border);box-shadow:var(--shadow-sm)}
.placeholder-page .flag{font-size:48px;margin-bottom:14px;line-height:1;display:inline-block;padding:10px 20px;background:var(--blue-50);border-radius:12px}
.placeholder-page h1{font-size:26px;color:var(--blue-700);margin-bottom:10px;font-weight:700}
.placeholder-page .sub{color:var(--green-700);font-size:14px;letter-spacing:2px;margin-bottom:18px;text-transform:uppercase;font-weight:600}
.placeholder-page p{color:var(--muted);margin-bottom:24px;line-height:1.8;font-size:15px}
.placeholder-page .actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ============ Demo toast ============ */
.demo-toast{position:fixed;top:calc(var(--header-h) + 16px);left:50%;transform:translateX(-50%);background:var(--blue-700);color:#fff;padding:14px 22px;border-radius:10px;box-shadow:var(--shadow-lg);z-index:200;font-size:14.5px;display:flex;align-items:center;gap:10px;max-width:92vw}
.demo-toast svg{width:20px;height:20px;flex-shrink:0;color:var(--green-400)}
.demo-toast.fade-out{opacity:0;transition:opacity .25s var(--ease);pointer-events:none}

/* ============ Utility ============ */
.text-center{text-align:center}
.mb-12{margin-bottom:12px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}.mb-32{margin-bottom:32px}.mb-48{margin-bottom:48px}
.mt-12{margin-top:12px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}

/* ============ Responsive ============ */
@media (max-width:960px){
  .hero h1{font-size:38px}
  .hero .sub{font-size:18px}
  .services{grid-template-columns:repeat(2,1fr)}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .stats .container{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr;gap:16px}
  .detail-layout{grid-template-columns:1fr;gap:32px}
  .spec-card{position:static}
  .scope{grid-template-columns:1fr;gap:28px}
  .about-stats{grid-template-columns:repeat(2,1fr)}
  .about-philosophy{grid-template-columns:repeat(2,1fr)}
  .site-footer .container{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:680px){
  :root{--header-h:50px}
  .header-right{display:none}
  body.menu-open .header-right{display:flex;flex-direction:column;align-items:stretch;position:absolute;top:var(--header-h);left:0;right:0;background:#fff;padding:14px 18px 18px;border-bottom:1px solid var(--border);box-shadow:var(--shadow-md);gap:0;z-index:40}
  body.menu-open .nav{display:flex;flex-direction:column;align-items:stretch;width:100%;gap:0}
  body.menu-open .nav a{padding:12px 14px;border-radius:8px}
  body.menu-open .lang{align-self:flex-start;margin:8px 0 0;width:100%}
  body.menu-open .lang-btn{width:100%;justify-content:space-between}
  body.menu-open .lang-menu{position:static;display:block;box-shadow:none;border:0;padding:8px 0 0;background:transparent;min-width:0;width:100%}
  .hamburger{display:inline-flex;margin-left:auto}
  .hero{min-height:100svh}
  .hero h1{font-size:30px}
  .hero-inner{padding:56px 24px 80px}
  .hero .actions{flex-direction:column;align-items:stretch}
  .hero .actions .btn{width:100%}
  .hero-scroll-hint{bottom:8px;font-size:10px}
  .hero-scroll-hint .chev{width:26px;height:26px}
  .services,.product-grid,.about-stats,.about-philosophy{grid-template-columns:1fr;gap:14px}
  .stats .container{grid-template-columns:repeat(2,1fr);gap:20px}
  .stat .v{font-size:32px}
  .qr-row{grid-template-columns:1fr;gap:16px}
  .philosophy .items{gap:18px;font-size:18px}
  .philosophy .items .sep{display:none}
  .section{padding:48px 0}
  .section-title h2{font-size:24px}
  .page-hero{padding:40px 0 32px}
  .page-hero h1{font-size:26px}
  .container{padding:0 18px}
  .site-footer .container{grid-template-columns:1fr;gap:24px}
  .detail-body h1{font-size:26px}
  .detail-body .en-name{font-size:15px}
  .placeholder-page{padding:48px 18px}
  .placeholder-page .inner{padding:36px 24px}
  .placeholder-page h1{font-size:22px}
}

/* ============ Print (basic) ============ */
@media print{
  .site-header,.site-footer,.crumbs,.hero::after,.stats,.page-hero,.btn,.lang,.hamburger,.qr-section{display:none!important}
  body{background:#fff;color:#000}
  .container{max-width:100%}
  a{color:#000;text-decoration:underline}
}